@article { author = {Attaya, Ahmed}, title = {INFLUENCE OF DRIP IRRIGATION RATES AND SOIL IMPROVERS ON THE PERFORMANCE OF SOME SUGAR BEET VARIETIES IN NORTH SINAI}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {419-435}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53191}, abstract = {The presented work aims to study the effect of drip irrigation rates and soil conditioners/ improvers on yield and quality of three sugar beet varietiesduring two winter successive seasons 2012/2013 and 2013/2014 under new land conditions of North Sinai Governorate, Egypt. Statistically split-split plot design was used. Irrigation rates had a significant effect on root length, root diameter, sucrose percentage, root and sugar yields in both growing seasons while it had a significant effect on purity percentage in 1st season only. Irrigation rate of 3000 m3/fad., over passed that of 2500 m3/fad., which recorded the highest values of root diameter, sucrose percentage, purity percentage, root and sugar yields. On the other hand, Irrigation rate of 2500 m3/fad., over passed that of 3000 m3/fad., which recorded the longest root. Moreover, sugar beet varieties had a significant effect on root length, root diameter, sucrose percentage, root and sugar yields in both growing seasons while it had a significant effect on purity percentage in 1st season only. Marathon variety gave the highest values of root length, root diameter, root and sugar yields. Farida variety gave the highest values of sucrose and purity percentages. Soil improvers had a statistical effect on root diameter, purity percentage, root and sugar yields in both growing seasons while it had a significant effect in 1st season only on root length and sucrose percentage. Iquet compound was the best soil improver that attained the highest values of the studied traits in both seasons. The 2nd order interaction of irrigation rate × variety × soil improver statistically affected on root diameter in 1st season, sucrose and purity percentages in 2nd season and root length, root and sugar yields inboth seasons. Using 3000 m3/fad., of irrigation rate in combination with Humic acid as soil conditioner for Marathon variety was the best combination that recorded the highest root and sugar yield values (30.58 and 5.99 ton/fad., respectively, as a mean of both seasons). However, using the sameirrigation rate in combination with the same soil conditioner for Farida sugar beet variety attained the highest purity percentage value (96.77%). The combination of 3000 m3/fad., with Iquet for Marathon variety gave the highest root diameter value (26.8 cm) while the same combination with Farida variety recorded the highest sucrose percentage value (20.06%). Thus, the combination of 2500 m3/fad., with Iquet for Marathon variety attained the highest root length (35.3 cm).}, keywords = {Irrigation rate,soil improvers,Sugar beet varieties}, url = {https://zjar.journals.ekb.eg/article_53191.html}, eprint = {https://zjar.journals.ekb.eg/article_53191_a201524cdb9152f1aca0380f2765aae7.pdf} } @article { author = {Abd El-Mottalb, Ayman and Abd El-Khalek, Rasha}, title = {BIOCHEMICAL AND MOLECULAR IDENTIFICATION OF SIX MAIZE INBRED LINES}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {437-448}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53192}, abstract = {The present investigation was done to define the identity of six maize inbred lines using SDS-PAGE protein analysis and some isozymes variability, DNA fingerprinting detected by inter simple sequence repeat (ISSR)-PCR molecular markers. Protein electrophoresis revealed that total number of bands ranged from 12 in the inbred line Sids 1108 to 4 in inbred line Sids 1157 and inbred line Sids 63. Three common bands were found in all tested inbred lines. Two inbred lines; Sids 7 and Sids 1108 showed specific bands which could be used to distinguish them from the others. In addition, bands of two isozymes systems, peroxidase (Prx) and esterase (EST) were determined for the six maize inbred lines based on polyacrylamide gel electrophoresis. The number of bands and Rf values could be used to identify these inbred lines. Eleveen anchored ISSR primers were used for fingerprinting of the six maize inbred lines and obtained 73 scorable bands, 42 of them were polymorphic (58 %). Sids 7 produced two bands with two primers (ISSR 1and ISSR 10). Sids 34 produced three bands with three primers (ISSR 1, ISSR 9 and ISSR 11). Sids 1159 produced three bands with three primers (ISSR 2, ISSR3 and ISSR 8). Sids 1108 produced two bands with two primers (ISSR 6 and ISSR 7). Sids 1157 have one band marker with primer ISSR 11. Also, Sids 63 has one band marker with primer ISSR 3. Existing genetic differences between inbred lines are important from the point of view of the breeder to take advantage in maize improvement programs.}, keywords = {Maize (Zea mays L.) SDS- protein electrophoresis,isozymes,ISSR- PCR}, url = {https://zjar.journals.ekb.eg/article_53192.html}, eprint = {https://zjar.journals.ekb.eg/article_53192_cd30cf57783ae5f0430d09fe7ffd0552.pdf} } @article { author = {Yasin, Mohamed}, title = {RESPONSE OF THREE SUGAR BEET VARIETIES TO PLANTING DENSITY AND POTASSIUM FERTILIZER LEVELS UNDER SANDY SOIL CONDITIONS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {449-463}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53193}, abstract = {Two field experiments were carried out at El-Khattara experimental farm, Faculty of Agriculture, Zagazig University, Sharkia Governorate, Egypt during the two successive seasons of 2011/2012 and 2012/2013. This study aimed to investigate the response of yield and quality of three multigerm sugar beet varieties (Rass Poly, Panther and Pleno) to three planting densities (28000, 33600 and 42000 plants/fad.) and three potassium fertilizer levels (0, 24 and 48 Kg K2O/fad.) in sandy soil under drip irrigation system. The combined analysis results showed that Pleno variety surpassed the other two investigated varieties in root length and diameter, fresh root weight/plant, root and recoverable sugar yields/fad. In addition, its roots contained lower percentages of Na and K. Planting density affected on all traits, where increasing plant density up to 42000 plants/fad., significantly decreased root length and diameter, fresh top and root weights/plant, Na, K, alpha amino-N percentages and sugar loss to molasses (%). On the other side, sucrose (%), purity (%), extractable sugar (%), top, root and recoverable sugar yields were significantly and gradually increased. Moreover, root length, sucrose, Na, K, α-amino-N, extractable sugar percentages, sugar loss to molasses (%) (SLM) top, root and recoverable sugar yields were significantly increased by adding 24 kg K2O/fad., while root diameter and fresh root weight/plant were significantly responded up to 48 kg K2O/fad. The interaction between the studied factors revealed that the maximum root and recoverable sugar yields/fad., could be obtained by planting Pleno variety with the dense planting of 42000 plants/ fad., and applying 24 kg K2O/fad.}, keywords = {Sugar beet varieties,planting density,K fertilization,yield and quality}, url = {https://zjar.journals.ekb.eg/article_53193.html}, eprint = {https://zjar.journals.ekb.eg/article_53193_c4c824aaf299f6107674652ad08aa959.pdf} } @article { author = {Shehata, Said and Attia, Manal and Mohamed, M.}, title = {EFFECT OF HOT WATER DIPS AND MODIFIED ATMOSPHERE PACKAGING ON QUALITY AND STORABILITY OF FRESH-CUT GREEN ONION DURING COLD STORAGE}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {465-482}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53198}, abstract = {Green onions (Allium cepa L.) plants Photon cv. produced under usual cultivation practices in a private farm at Fayed District, Ismalia Governorate, Egypt. Plants were harvested when bulb diameter exceeded 12- 16 mm on February during 2015 and 2016 seasons. This investigation aims to study the effect of hot water dips (50°C for 2 min or 55°C for 1 min) and storing in  active modified atmosphere packages (MAP) at  5% O2 + 5% CO2  or  7.5% O2 + 10% CO2) or in passive MAP beside unpacked plants (control) on leaf extension growth, root growth and leaf curvature and quality attributes of fresh- cut green onions during storage at 0°C and 95% relative humidity (RH) for 20 days  plus 2 days at 10°C and 70% RH. Results indicated that green onion plants dipped in hot water at 50°C for 2 min. gave the lowest weight loss as compared with 55°C for 1 min, also hot water treatment at 55°C for 1 min. or storing in active MAP at 5% O2 + 5% CO2 were the most effective treatments in reducing decay percentage during storage + shelf life. Hot water treatment at 50°C for 2 min. or active MAP at 7.5% O2 + 10% CO2   were less effective in this concern. Moreover, no decay was observed in green onion plants dipped in hot water at 55°C for 1 min. followed by active MAP at 5% O2+ 5% CO2 during all storage period + shelf life. Furthermore, it is also controlled root growth and leaf curvature and reduced leaf extension growth (less than 5 mm), maintained chlorophyll readings and gave excellent appearance without any visible injuries after 20 days at 0°C + 2 days (at 10°C shelf life).}, keywords = {Onion,hot water,Modified Atmosphere,storability,Cold storage,fresh-cut green onion}, url = {https://zjar.journals.ekb.eg/article_53198.html}, eprint = {https://zjar.journals.ekb.eg/article_53198_f439fc376856e3b0c30698eda9867b9a.pdf} } @article { author = {الزهيري, إخلاص}, title = {تأثير النقع في حامض الجبريليک على إنبات البذور وبعض صفات النمو الخضري والزهري لنبات عين البزون صنف باسيفيک ميکس}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {483-491}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53201}, abstract = {أجريت هذه الدراسة لاختبار تأثير نقع بذور عين البزون في حامض الجبريليک بترکيزات (صفر ، 50 ، 100 أو 150 ملجم.لتر-1) على صفات النسبة المئوية للإنبات وبعض صفات النمو الخضري والزهري للشتلات الناتجة، نفذت التجربة باستخدام التصميم العشوائي الکامل (CRD) وبثلاث مکررات وقورنت المتوسطات حسب اختبار دنکن متعدد الحدود عند مستوى إحتمال 5% خلال الفترة من 21 آذار حتى18 أيار2015، أظهرت النتائج وجود فروقات معنوية في اغلب الصفات المدروسة، فقد کانت أعلى نسبة مئوية للإنبات لمعاملتي 50 و100 ملجم.لتر-1 والتي بلغت 100%، وقد أدت معاملة البذور بحامض الجبريليک بترکيز 50 أو 100 ملجم.لتر-1 لتحسين معنوى في ارتفاع النبات وعدد أوراق النبات مقارنة بالکنترول (البذور غير المعاملة) ومعاملة 150 ملجم.لتر-1 بدون فرق معنوي بين ترکيزي 50 ، 100 ملجم.لتر-1، کما أن عدد الأزهار للنبات قد زاد معنوياً بمعاملة البذور بحامض الجبريليک بترکيز 50 ملجم.لتر-1 مقارنة بالکنترول، وعلى  الجانب الآخر، فإن المحتوى الکلي للأوراق من الکلورفيل لم يتأثر معنوياً بنقع البذور في أي من ترکيزات حامض الجبريليک، وقد أثبتت النتائج أنه يمکن التوصية بنقع بذور عين البزون في حامض الجبريليک بترکيز 50 ملجم.لتر-1 قبل الزراعة لمدة 5 ساعات لتحسين نسبة إنبات البذور وارتفاع النبات وعدد الأوراق للنبات وعدد الأزهار للنبات.}, keywords = {حامض الجبريليک,عين البزون,إنبات البذور,النمو الخضري}, url = {https://zjar.journals.ekb.eg/article_53201.html}, eprint = {https://zjar.journals.ekb.eg/article_53201_395af91057537bb413061d0134054427.pdf} } @article { author = {Jabreil, Farag and Abou Sayed-Ahmed, T. and Nomier, Safaa and Ibrahim, M.}, title = {EFFECT OF HARVEST DATE ON YIELD AND STORABILITY OF WASHINGTON NAVEL AND VALENCIA ORANGE FRUITS UNDER ON-TREE AND COLD STORAGE CONDITIONS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {493-510}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53210}, abstract = {This study was conducted during two successive seasons of 2013/2014 and 2014/ 2015 on 15-year-old Washington navel and Valencia orange [Citrus sinensis (L.) Osbeck] trees grafted on sour orange rootstock. The experimental trees were grown in clay loam soil of a private citrus orchard located at Menia El-Kamh district, Sharkia Governorate, Egypt. Fruits were harvested at 5 successive monthly intervals on the first of each of Dec., Jan., Feb., Mar. and Apr. for Washington navel orange. Valencia orange fruits were harvested one month later at five periods beginning with first Jan. and ending with first May. On each harvest date fruits of three trees (3 replicates) were harvested, counted and weighed. About 60 healthy undamaged fruits from each replicate were randomly selected for cold storage at 7ºC±1 and 85-90% RH. Fruit samples selected at harvest day (15 fruits) and those taken at 30 days intervals from cold stored fruits were subjected to determine the effect of on-tree, cold storage and harvest date on physicochemical fruit characteristics. Washington navel orange gained the highest fruit weight, TSS/acid ratio, fruit weight loss and fruit decay percentages, whereas, Valencia orange produced higher fruit yields with higher  vit. C content. Yield/ tree, fruit weight, TSS/ acid ratio and vit. C content were markedly decreased by delaying fruit harvest (on-trees fruits storage) and increasing storage period, but weight loss and decay percentages were increased. All possible interactions between the three tested factors were significant in the two seasons, and confirm the previously recorded trends of each individual factor on the tested physico-chemical fruit characteristics. The obtained results revealed that the storability of Valencia orange fruits was clearly better than that of Washington navel orange fruits, since weight loss and decay percentages of the later orange variety were about 2 and 15 folds than that of Valencia orange fruit, respectively (average of both seasons).}, keywords = {Harvest date,Orange,storability,on-tree,Cold storage,fruit decay}, url = {https://zjar.journals.ekb.eg/article_53210.html}, eprint = {https://zjar.journals.ekb.eg/article_53210_eb857c4ddf55dc64ae61df64891b571a.pdf} } @article { author = {Soaud, Salma and Abd-El Sayyed, S. and Mahgoub, E. and Wafa, H.}, title = {STUDIES ON GENETIC POLYMORPHISM IN Luffa aegyptica LANDRACES USING RAPD -PCR}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {511-518}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53859}, abstract = {Genetic polymorphism of eight open and self pollinated Luffa landraces, which collected from four Egyptian regions, Ismailia, El-Arish, Zagazig and Meet-Gamr, was studied. Four selected decamer primers, out of eight screened, generated a total of 46 RAPD fragments of which 31 were polymorphic (67%). The number of amplification products of each primer varied from 8 (OPA-04) to 16 (OPC-02) with average 11.5 per primer. The band size of PCR products ranged from 100 bp (OPC-02) to 1530 bp (OPC-06). The average similarity coefficient between Luffa landraces based on combined RAPD-PCR products of the four used primers was 0.783, indicating a clear relationship between such entries and showing that genomes were not much different from each other. The highest similarity coefficient (0.889) was found between the selfed Ismailia landrace and selfed Meet-Gamr or selfed El-Arish landrace. But, the lowest similarity coefficient (0.667) was detected between open-pollinated landrace of Zagazig and each of selfed Meet-Gamr and open-pollinated El-Arish landrace. The largest distance was detected between open pollinated landrace of Zagazig and each of selfed landrace of Meet-Gamr as well as the open pollinated landrace of El-Arish. While the smallest genetic distance was observed between selfed landrace of Ismailia and each of selfed landrace of Meet-Gamr and El-Arish landrace. The constructed dendrogram distributed the eight Luffa landraces into three major clusters, the largest one included five members and divided into two sub-clusters. RAPD-PCR technique appeared to be suitable in revealing genetic variability, relatedness and consequently genetic polymorphism among the studied luffa landraces.}, keywords = {Luffa,molecular markers,Polymorphism,RAPD-PCR,similarity coefficient}, url = {https://zjar.journals.ekb.eg/article_53859.html}, eprint = {https://zjar.journals.ekb.eg/article_53859_6c2fe5d4eb6c666c8e94cb945fa6fd15.pdf} } @article { author = {Elazazi, Ahmed and Ibrahim, A. and Metwally, A. and Abdel-Fattah, M.}, title = {EFFECT OF SOME SOIL AMENDMENTS ON SALINE-SODIC SOILS RECLAMATION}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {519-533}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53860}, abstract = {A leaching experiment was conducted to asses efficiency of gypsum solely or in combination with sulfuric acid and/or botanical compost on saline-sodic soils reclamation. Soil samples were collected from El-Hossainia plain, El-Sharkia Governorate, Egypt. The following  treatments were designed in a randomized complete block design and performed in 8 replicates:T1: non-treated soil “NTS”, T2: full gypsum requirements “FGR”, T3: FGR + sulfuric acid “SA”, T4: FGR + SA + botanical compost 1% “BC-1%”, T5: FGR + SA + botanical compost 2% “BC-2%”, T6: FGR + BC-1%, T7: FGR + BC-2%, T8: ½ gypsum requirements “½ GR”, T9: ½ GR + SA, T10: ½ GR + SA + BC-1%, T11: ½ GR + SA + BC-2%, T12: ½ GR + BC-1% and T13: ½ GR + BC-2%. Leaching was done using the intermittent method so as to add portions to the already saturated soil columns, and obtain leachates equal to the added portions. Amounts of water were calculated to reduce the initial ECe from 66 to 4-dSm-1 for 20-cm soil according to Reeve equation. All treatments decreased soil EC, soil pH and soil sodicity expressed as SAR and ESP. Results showed that ½ GR + SA + BC-2% treatment was more effective in decreasing the pH, EC and soil sodicity than the other treatments. Efficiency of treatments were T11 < T5 < T4 < T3 < T10 < T7 < T9 < T6 < T2 < T8 < T13 < T12 < T1. This study suggests that leaching using gypsum in combination with sulfuric acid and/or botanical compost on saline-sodic soils reclamation is reliable on ameliorating salinity and sodicity or such soils. }, keywords = {Saline,sodic,soils,reclamation,gypsum,sulfuric acid and compost}, url = {https://zjar.journals.ekb.eg/article_53860.html}, eprint = {https://zjar.journals.ekb.eg/article_53860_b607ae0d7006f22ee784c24bf437036b.pdf} } @article { author = {Amer, Ahmed and El-Azab, Kadria and Aiad, M. and El-Sanat, G.}, title = {USING SEAWATER IN AGRICULTURAL AND RESISTANT IT'S POSSIBLE HAZARDS ON SOIL AND PLANT}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {535-548}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53865}, abstract = {Water is certainly one of the most critical inputs in crop production in many parts of the world particularly in the arid and semi-arid regions, i.e. Egypt, in the near future the required development of irrigated agriculture is necessary to cope with the increasing food demands from increasing population and water scarcity in Egypt. It has thus become necessary to explore new water sources that can meet current or future demand for irrigation supply. The main objective of this study was to determine the maximum amount of seawater irrigation needed to produce a good yield and study the combined effect of diluted seawater (I1, I2, I3, I4, I5, and I6) and rates of compost addition (0.0, 4.0, 8.0 ton fad.-1) on plant growth, crop production and soil properties. Sandy soil Lysimeters were planted by salt-tolerant plants (barley) followed by sunflower crop under the same treatments. Results concluded that all diluted seawater prepared was suitable for irrigation crops according to the calculated criteria of water quality. The values of soil pH, Ec (ds/m) and ESP at the end of the two seasons were taken the same trend, which increased significantly with increasing the salinity of irrigation water or increasing the rate of compost addition as individual factors but in combination among them appeared insignificant variation in most studied properties. Also, available macronutrients residual in experimental soil were affected by the antagonism relationship between the studied factors, positively by addition of compost and negatively with salinity water supply. It was noticed that the interaction between treatments has positive role in reducing the hazards of the salinity irrigation water, which the biological yield of barley was decreased to maximum percentage (28.95%) at using the highest salinity irrigation water (I6). But, it was obtained the minimum reduction percentage (5.9%) if combined with the highest rates of compost addition compared with the control (I1). The residual effect of highest compost addition was more clearly on the parameters studied of sunflower cultivated in the second season which hadn't reduce the hazards of high salinity irrigation water (I6) alone but optimized with the values parameters studied particularly seed yield by 16.3% at the treatments (I6 × C3) compared with the control (I1).}, keywords = {Seawater,Irrigation,barley and sunflower production,sandy soil}, url = {https://zjar.journals.ekb.eg/article_53865.html}, eprint = {https://zjar.journals.ekb.eg/article_53865_e76b6cb8fb3f7bd90b9644e51a7a01d2.pdf} } @article { author = {Marzouk, Ezzat}, title = {NICKEL, COPPER, ZINC AND CADMIUM FRACTIONATION IN MANGROVE SEDIMENTS, RED SEA, EGYPT}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {549-562}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53871}, abstract = {Nickle (Ni), copper (Cu), zinc (Zn) and cadmium (Cd) in eight sediment samples from mangrove area, Red Sea, Egypt were fractionated using diethylenetriamine pentaacetic acid (DTPA) and a sequential extraction procedure (SEP). These sediment samples were collected horizontally from two locations (four samples from each site) based on different layer visual characterizations. Sediments were initially characterised using different analytical and statistical procedures. DTPA-extract table metal percent of the total metal content varies widely from 1.93 : 25.6% for Ni, from 3.86 : 18.2% for Cu from 0.6 to 4.1 for Zn and from 3.36 : 11.2% for Cd depending on soil characteristics. There no consistent trend of metal extracted by DTPA as a function of sediment depths although CdDTPA (%) was increased by increasing sediment depths in site 1 and in site 2. Moreover, metal extracted by DTPA showed no consistent correspondence with any single fraction of SEP. The metal extracted by DTPA showed reasonable correlation with the summation of exchangeable (F1) and carbonate (F2) fractions in both sites. So it may be reasonable to conclude that most ‘available’ metal is (presumably) surface-bound on CaCO3, rather than occluded within CaCO3 or present as a mixed solid-solution (Ca1-xMxCO3). Approximately 84%, 30%, 70% and 95% of the variability in PTPA-extractable-Ni, Cu, Zn and Cd (mg kg-1) values for a whole dataset, respectively were explained by the variation in soil pH, (%) SOM, (%) CaCO3 and total metals content. CdDTPA showed the highest prediction performance while Cu showed the worst case of the regression model in which Cu availability is more likely controlled by either the source of Cu or other conditions rather than sediment properties.}, keywords = {Sequential and single extractions,Heavy metals,mangrove sediment}, url = {https://zjar.journals.ekb.eg/article_53871.html}, eprint = {https://zjar.journals.ekb.eg/article_53871_860ee498c84062a1bb892f3d1433f9aa.pdf} } @article { author = {El-Samahy, Rania and El-Sayiad, Gh. and Abou-Kassem, D. and Ashour, E.}, title = {PRE-HATCH PERFORMANCE OF JAPANESE QUAIL EGG WEIGHT CATEGORIES INCUBATED AFTER SEVERAL STORAGE PERIODS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {563-570}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53873}, abstract = {One thousand, two hundreds and sixty eggs of Japanese quail (Coturnix coturnix Japonica) were set into the incubator maintaining 12 treatment groups in a factorial design experiment (3 × 4) including three categories of incubated quail weight eggs (lower than 11 g., light weight (L), 11–12 g., medium weight (M) and above 12 g., heavy (H)), and four egg storage periods (1, 4, 7 and 10 days). The traits studied were egg weight loss (%) during incubation, embryonic mortality percentage, incubation time, and fertility percentages. Results obtained revealed that, there was a significant (P<0.01) increase in egg weight loss (%) with increasing egg weight during incubation while, egg storage period was insignificantly affected on the same trait. Embryonic mortality percentage during the whole incubation period (1-17 days) was significantly (P< 0.05) affected by egg weight categories as it decreased by egg weight increase where the best result was obtained with heavy eggs (H) which recorded 22.01%. A significant (P< 0.01) effect on incubation time per hour due to quail egg weight was shown while, each of the egg storage periods and interaction effects were insignificant. A significant effect (P< 0.05) on fertility percentage due to quail egg weight, egg storage period (P< 0.01), while the interaction was insignificant. The best results were with medium (M) egg weight or storage period of 1 day while the highest values (95.83 and 95.12%) were obtained by interaction of 1 day storage period with each of medium (M) or Heavy (H) weights of incubated quail eggs, respectively. Conclusively, it can be concluded that, medium quail eggs and storage periods of 1 day or 4 days gave the best results of pre-hatch performance of Japanese quail under Egyptian conditions.}, keywords = {Quail,incubation,egg weight,Storage period,performance}, url = {https://zjar.journals.ekb.eg/article_53873.html}, eprint = {https://zjar.journals.ekb.eg/article_53873_7171101891085cc45cb4b7f52506e9d6.pdf} } @article { author = {Al-Zahaby, Mohammed and Shalaby, A. and Abd-El-Rahman, G. and Ayyat, M.}, title = {IMPACT OF WATER QUALITY ON THE BLOOD PARAMETERS OF NILE TILAPIA IN DIFFERENT FISH FARMS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {571-581}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53875}, abstract = {Fish have high flexibility to live in diverse environmental conditions, since it have vast capability to be adjusted in adverse conditions. Such adjustments include increase of RBCs count, hematocrit (Hct) ratio and hemoglobin (Hb) concentrations, since blood is a perfect mirror apparently reflects health status of the fish. In the present studies, the blood picture of Nile tilapia reared in ponds of four different fish farms; (A) of Central Laboratory for Aquaculture Research (CLAR), supplied mostly with under-groundwater, (B) private fish farm supplied with agricultural drainage water, (C) of World Fish Center (WFC) irrigated with fresh water from Ismailia canal and (D) private fish farm supplied with sewage water from Bahr El-Baqar drain. It was found that, the erythrocyte's count of fish raised in fish farm (C) of WFC is the highest (1.859±0.091 106/µl) at summer in between other investigated fish farms. The same trend was also shown for haematocrit (Hct) %, its highest value (22.765 ± 0.813%) was recorded in tilapia of farm (C) at summer. These may be attributed to the adverse ecological parameters that influence on health status of the fish like dissolved O2, pH, temperature and chemical pollutants present in the other fish farms. On the contrary, the haemoglobin (Hb) content showed its highest value (8.99±0.743g/dl) in fish of fish farm (D) supplies with water from Bahr El-Baqar drain, at spring. Regarding to the erythrocyte indices; mean cell volume (MCV), mean cell haemoglobin (MCH) and mean cell haemoglobin concentration (MCHC) were varied in fish of the investigated fish farms. Their highest values (162.539±8.508 µ3, 69.790±6.212 Pg and 43.420±3.736 g/dl, respectively) were documented in fish farm (D) at autumn. These haematological indices are critical and serving as indicators of anemia. Nonetheless, the lowest values of these indices (128.247±5.860 µ3, 36.835±2.620 Pg and 28.449±1.277 g/dl, respectively) were confirmed in fish farm (C) especially at winter, displaying almost healthy fish status.}, keywords = {Aquaculture,Nile tilapia,blood parameter,Water Pollution}, url = {https://zjar.journals.ekb.eg/article_53875.html}, eprint = {https://zjar.journals.ekb.eg/article_53875_e4a71af76677c3c5f6b9f25cdc84a150.pdf} } @article { author = {Abd El-Galeel, Ali and Atwaa, E. and Abdelwahed, E.}, title = {IMPROVING PROPERTIES OF NON-FAT YOGHURT USING FAT REPLACERS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {583-590}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53878}, abstract = {The effect of adding different levels of fat replacers either "Dairy Lo" or "Maltrin" on the quality of nonfat yoghurt was studied. "Dairy Lo" or "Maltrin" were added to nonfat milk yoghurt at levels of 0.5 and 1%. Results showed that addition of fat replacers did not significantly affect the chemical composition of resultant nonfat yoghurt and increased the soluble nitrogenous compounds, formation of acetaldehyde, diacetyle and total volatile fatty acids (flavour compounds). Also, addition of fat replacers, improved rheological properties: (syneresis and viscosity of yoghurt). On the other hand, addition of both "Dairy Lo" and "Maltrin" increased the organoleptic properties of yoghurt. Maltrin was more effective in this respect. Overall, the nonfat yoghurt containing 0.5 and 1% Maltrin was similar in quality characteristics to full fat control yoghurt. So, it could be recommended using some fat replacers especially Maltrin to improve the flavour formation and body characteristics of nonfat yoghurt.}, keywords = {yoghurt,dairy lo,maltrin,Organoleptic properties,low fat yoghurt}, url = {https://zjar.journals.ekb.eg/article_53878.html}, eprint = {https://zjar.journals.ekb.eg/article_53878_894cda191a03ebe2118cfba566bc58b0.pdf} } @article { author = {Abd El-Galeel, Ali and El-Zawahry, A.}, title = {CHEMICAL COMPOSITION, PROTEOLYSIS, RHEOLOGICAL AND ORGANOLEPTIC PROPERTIES OF CHEDDAR CHEESE AS AFFECTED By VARIOUS HIGH HYDROSTATIC PRESSURE TREATMENTS DURING RIPENING}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {591-603}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53881}, abstract = {The effect of high hydrostatic pressure (HHP) treatments on chemical composition, proteolysis, rheological properties, total free amino acids and organoleptic properties for Cheddar cheese during ripening at 8-10oC up to 120 days were evaluated. Application of HHP-treated Cheddar cheese at three levels (200, 400 and 600 MPa at 25oC for 20 min.) was carried out as a methods for acceleration of Cheddar cheese ripening. Results showed that HHP-treated at 600 MPa for 20 min. at 25oC was significantly higher in moisture, fat in dry matter and pH values, on the other hand total solids, was significantly lower throughout the ripening period followed by cheeses treated at 400, 200 MPa for 20 min. and control cheeses, respectively. All Cheddar cheeses treated with HHP showed significant (P≥0.05) higher increase in nitrogen fractions (WSN/TN% and NPN/TN%) than control cheese during ripening up to 120 days. Morover, total volatile fatty acids was significantly higher (P≥0.05) in cheese treated at 600 MPa than other cheeses during ripening. Rheological properties indicated that, HHP-treated Cheddar cheese at 600 MPa for 20 min. The significant lower (P≥0.05) values of hardness as compared to cheese treated at 200, 400 MPa and control cheeses. lowest values of chewiness and gumminess were observed in cheese treated at 200 and 400 MPa at the end of ripening. Also, HHP-treated Cheddar cheese at 600 MPa had a higher levels of total free amino acids than other cheeses treated at 200, 400 MPa and control cheeses,. HHP-treated Cheddar cheeses gained significantly higher flavour and texture scores compared to control cheese, but HHP-treated Cheddar chees at 600 MPa for 20 min. showed higher total scores than other cheese treatments. }, keywords = {High hydrostatic pressure (HHP),Cheddar cheese,cheese ripening,ripening indices,Rheological properties}, url = {https://zjar.journals.ekb.eg/article_53881.html}, eprint = {https://zjar.journals.ekb.eg/article_53881_e66b71b780c65259ecc6fa460bfee665.pdf} } @article { author = {Abd El-Galeel, Ali and Atwaa, E.}, title = {USE OF RICE BRAN OIL AS NATURAL ANTIOXIDANT IN WHITE SOFT CHEESE MANUFACTURINE}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {605-615}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53885}, abstract = {This study was carried out to determine the antioxidant activity and phenolic compounds of rice bran oil, also to evaluate the effect of added rice bran oil on the oxidative stability, microbial and sensory properties of soft cheese (Domiati). Rice bran oil was used in cheese manufacture at ratio of 0.1 and 0.2% (W/W) compared with cheese with 200 ppm of butylated hydroxyl anisol (BHA). Cheese treatments were stored at room temperature for four months and analyzed for chemical, microbiological, oxidative stability indices and sensory properties when fresh and then after 1, 2, 3 and 4 months of storage. Results showed that rice bran oil contains a high content of phenolic compounds and gave high antioxidant activity. Cheeses containing 0.2% of rice bran oil showed the highest oxidative stability (lowest in the peroxide, acid and Thiobarbituric acid (TBA) values), recommended better sensory properties and the lowest microbial count than the other treatments. Generally, cheese samples containing natural antioxidant (rice bran oil) showed lower peroxide, acid and TBA values compared with cheese containing BHA and control cheese along the storage period. From  the results of this research it could be seen that addition of rice bran oil at a rate of 0.2% in manufacture of white soft cheese as a natural antioxidant to improve the oxidative stability, bacteriological and sensory quality of the resultant cheese during storage.  }, keywords = {Antioxidant activity,Phenolic compounds,rice bran oil,natural antioxidant,white soft cheese}, url = {https://zjar.journals.ekb.eg/article_53885.html}, eprint = {https://zjar.journals.ekb.eg/article_53885_81fbce03ee96fa00997fcdcfe2b75cc2.pdf} } @article { author = {Saad, Soheir}, title = {EVALUATION OF PHYSICO-CHEMICAL PROPERTIES OF SOME MIXTURE JUICES}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {617-634}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53886}, abstract = {This study was carried out to investigate improving and developing mixed fruit juices prepared from mango, strawberry, pineapple, orange, and pomegranate  with different ratios as well as having nutritional values with highly functional and organoleplicolly characteristics. Development of new technologies for thermal food treatment is still of great industrial and scientific interest. Microwave heating is one of these new technologies. The fruits blended juices were pasteurized by two different methods, i.e. conventional processing at 80°C for 10 min and microwave heating (2450 MHz) using 100% and 70% capacity for 3min. After thermal processing, juices were stored at 4°C and analyzed after processing and storage. The physicochemical parameters studied were pH value, total soluble solids (TSS) and titratable acidity (TA) along with an estimate of metal elements such as iron, potassium, calcium, phosphorus, zinc. These juice mixtures were analyzed for their (vitamin C, antioxidant total phenolic and total flavonoid). The obtained results revealed that fresh strawberry has high content of antioxidant activity (%), total phenolic, total flavonids followed by fresh pomegranate and pineapple, respectively. Meanwhile fresh mango was higher in total soluble solids (TSS) and pH value and as well as lowest in titratable acidity (TA). Factors affecting physical, and chemical and quality of juices were studied after processing and storage as well as microbiological evaluation. Results showed no presence of viable microorganisms (total count, mold and yeast) after storage at 4°C in all treatments. Also results showed that conventional treatment led to a significant decrease in vitamin C and total anthocyanins while microwave pasteurization preserved these compounds. Also it found that microwave pasteurization at 100% capacity recorded the highest values in each of antioxidant activity, total phenolic, total flavonids and total soluble solids (TSS) compared to pasteurization on the capacity of 70%.}, keywords = {Mango,strawberry,pineapple,Orange,pomegranate,microwave and conventional pasteurized,chemical,Physical properties}, url = {https://zjar.journals.ekb.eg/article_53886.html}, eprint = {https://zjar.journals.ekb.eg/article_53886_9d583452562821ddc6eae3e8bb90161a.pdf} } @article { author = {Abosaif, Alaa and Sharaf, A. and Elmassry, R. and Doheim, M.}, title = {CHARACTERIZATION OF TOLERATE BIOMARKER IN FABA BEAN (Vicia faba L.) AGAINST Orobanche crenata}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {635-642}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53889}, abstract = {This study was conducted in Zagazig University, Egypt to evaluate tolerate biomarkers in faba bean against Orobanche crenata. Two faba bean genotypes were choicen, known as Msr-3 (tolerate) and Giza-716 (susceptible). Obtained results showed that tolerate genotype has high content of chlorophyll a (1.20 mg/ g fresh weight), chlorophyll b (0.69 mg/g fresh weight), total chlorophyll (1.89 mg/ g fresh weight) and carotenoid (0.97 mg/ g fresh weight). Also tolerate faba bean contained high content of componants known as major osmotically-active componants, namely total soluble sugar (0.045 mg/ml), total protein (7.85%), Na+ (39.16ppm), K+ (59.24ppm) and polar amino acids (78.54%). Tolerate faba bean also showed a high content of total phenolic compounds (348.84 ppm calculated as a Gallic acid), conjugated phenolic compounds (227.69 ppm calculated as a Gallic acid). As well as tolerate faba bean (Msr-3) has high catalase activity (0.39 mg. protein-1).}, keywords = {Faba bean,Broomrape,soluble sugars,protein,Phenolic compounds,cations and catalase}, url = {https://zjar.journals.ekb.eg/article_53889.html}, eprint = {https://zjar.journals.ekb.eg/article_53889_c5add545980f4c5567300de61f3be619.pdf} } @article { author = {Abd El-Wahab, Sarah and Aioub, A. and El-Sobki, A. and Salem, Rehab}, title = {EFFECT OF GESAPRIM HERBICIDE WITH SOME MATERIALS ON MAIZE PLANTS}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {643-652}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53891}, abstract = {Field experiment was conducted to investigate the efficiency of pre-emergence herbicide, Gesaprim and it's mixtures with some materials on mineral contents, growth, and residual effect of Gesaprim on soil of maize plants during 2015 and 2016 growing seasons in Sharkia Governorate. Gesaprim (G) was added at the rate of 750 g/fad., and the other materials e.g. ammonion sulphate (N), phosphoric acid (P), potassium sulphate (K) and Tween-40 (S), as a surfactant were added at the rate of 215.35, 243.89, 215.38 g and 54.84 cm3/fad., respectively. Results revealed that the herbicide Gesaprim with mixed materials gave wide range on the vegetative growth, mineral contents and residual effects in maize plants. Results showed that, average of mineral content in maize leaves from the investigated elements [(nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and sodium (Na))] were as follows: 1.160, 0.322, 1.784, 0.240 and 0.614 for Gesaprim only; while they were 1.074, 0.413, 1.605, 0.244 and 0.604 for surfactant only; meanwhile, averages were 1.184, 0.346, 1.760, 0.245 and 0.616 for the treatment of Gesaprim+surfactant; meanwhile, for the treatment of Gesaprim + ammonium sulphate, they were 1.251, 0.322, 1.674, 0.245 and 0.594 (%). Also, they were 1.124, 0.409, 1.593, 0.251 and 0.581 for the treatment of Gesaprim + phosphoric acid. For the treatment of Gesaprim + potassium sulphate, the averages were 1.138, 0.284, 1.802, 0.260 and 0.564 while average of mineral contents were 1.151, 0.667, 1.689, 0.246 and 0.584 for the treatment of hand weeding. As for control, the averages were 1.246, 0.876, 1.700, 0.237 and 0.429. Results revealed that in vegetative growth, all the treatments of Gesaprim with materials had stimulatory effect on the fresh weight of shoots expect Gesaprim alone and Gesaprim combined with potassium sulphate. While the dry weight of shoots in case of, Gesaprim alone and Gesaprim combined with materials had stimulatory effect. The residual amounts of Gesaprim mixed with materials were 5.289, 3.478, 3.627; 4.565, 3.720, 0.00; 12.332, 2.017, 5.591; 3.578, 4.085, 5.611 and 3.435, 5.745, 5.405 at 5, 7 and 20 days after treatments by Gesaprim, G + S , G + N , G + P and G+ K , respectively.}, keywords = {Gesaprim herbicide,triazine,maize plants,minerals content,Growth,residual effect}, url = {https://zjar.journals.ekb.eg/article_53891.html}, eprint = {https://zjar.journals.ekb.eg/article_53891_48ed4c13bc6e1e30901c5e345b298bf2.pdf} } @article { author = {Shalaby, Aly and Aioub, A. and Romeh, A. and Ramadan, M.}, title = {IMPROVING AGENTS FOR PHYTOREMEDIATION OF SOIL CONTAMINATED WITH PYMETROZINE INSECTICIDE}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {653-664}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53894}, abstract = {The present work was designed to investigate the potential of using plantain (Plantago major L.) for the phytoremediation of pymetrozine contaminated soil. The use of soluble silicon dioxide (SiO2), Tween 80, hydroxypropyl-β-cyclodextrin (HPβCD) and liquid humic acid (HA) for enhancing the availability and uptake of pymetrozine contaminated soil by P. major were evaluated.Results revealed thatpymetrozine concentrations in soil with P. major reduced by 30.00 – 83.25% throughout 1 to 12 days exposure, compared with 12.50–61.90% in the soil of control. Pymetrozine uptake in the roots and translocated in the leaves of P. major to reach the maximum levels, 53.41 mg/kg and 58.08 mg/kg, respectively, after 4 days. The phytoremediation efficiency of P. major amended with SiO2 was greater than that of other solubility-enhancing agents with respect to the removal of pymetrozine from contaminated soil within 1-12 days of treatment. The addition of SiO2 increased pymetrozine uptake in roots and translocation in leaves by about 170.84% and 322.83% compared with P. major roots and leaves alone, respectively within 4 days. The most-effective to least-effective supplements to use in combination with P. major for the purpose of pymetrozine phytoremediation in roots and leaves were found to be as follows: SiO2> HA > HPβCD > Tween 80. This study indicates that SiO2 can improve the efficiency of phytoremediation of pymetrozine.}, keywords = {Phytoremediation,Plantago major,pymetrozine,improving agents,Soil}, url = {https://zjar.journals.ekb.eg/article_53894.html}, eprint = {https://zjar.journals.ekb.eg/article_53894_0c8aef3041529ad1fc8681d510b2b699.pdf} } @article { author = {Mohamed, Amira and Waseef, E. and Abdallah, Y. and Zedan, A.}, title = {EFFECT OF GATED PIPES IRRIGATION SYSTEM ON COTTON YIELD AND WATER USE EFFICIENCY}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {665-675}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53895}, abstract = {The field experimental works were conducted at the experimental farm of Sakha Agricultural Research Station, Kafr El-Sheikh Governorate during two successive seasons of 2013/ 2014 in clay soil to evaluate the performance of utilizing gated pipes technique for cotton crop production. The objective of this research was to study surface irrigation system performance through using gated pipes under different furrows irrigation lengths L75 (75m). L100 (100m), and L125 (125m) comparing with the traditional irrigation system. Also to study the effects of irrigation system and land slope technique under different furrows lengths on cotton crop production, total water applied, water use efficiency and water application efficiency under prevailing condition in Egyptian old valley. Results showed that: The maximum value of seed cotton yield was 1846.3 kg/fad., achieved by using gated pipes under furrow length treatment L125. On the other hand, the minimum value was 1472.8 kg/fad., was achieved in case of traditional irrigation method at L125 furrow length treatment. The maximum value of the total water applied saving was achieved in case of using gated pipes irrigation system at Laser land leveling technique of 0.1% land slope under furrow length treatment L75 and its value was 1472 m3/fad./season or 34.33% of the average values of the total water applied of traditional irrigation system during the first and second seasons. Generally the results showed that the best water use efficiency was obtained in case of irrigation using gated pipes irrigation system at any treatments compared to traditional irrigation methods and increases the water use efficiency with treatment L100 furrow length. The maximum value of water application efficiency for the irrigation with gated pipes irrigation was achieved in the case of treatment L125 and its value was 85.7% under land slope of 0.10%. The results showed that using gated pipes irrigation system with Laser land leveling technique of 0.1% in three cases of furrows lengths saving irrigation water by about 33% compared to traditional irrigation method.}, keywords = {cotton crop,surface irrigation,Gated pipes,Water saving}, url = {https://zjar.journals.ekb.eg/article_53895.html}, eprint = {https://zjar.journals.ekb.eg/article_53895_91876c0070382e8ecde19bac95e7d1d9.pdf} } @article { author = {Tarbush, Ihab and Morad, M.}, title = {DESIGN AND PERFORMANCE EVALUATION OF SOME DIFFERENT FARM DRAINAGE TECHNIQUES}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {677-691}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53897}, abstract = {In Egypt, the Nile Delta represents a large area of heavy clay soils with low permeability that might have a potential production. These soils are always threatened by a shallow saline groundwater. The main experiments were carried out to study the effect of drainage process and different drainage systems on productivity, physical and chemical properties of the soils of Earthen Delta. Three different drainage systems (unfilled mole drains, gravel filled mole drains and pipe drains) were designed and installed to select the suitable system for clay soil compared to without drainage (control). It could be concluded that the combined treatment of 4m spacing gravel field constructed mole with 40 cm depth (4F40) was the best treatment and should be recommended due to a relative high net profit comparing to other gravel filled mole treatments. On the other hand, the combined treatment of 4m spacing unfilled moles with 40 cm depth (4UF40) achieved the highest net profit comparing to the other drain treatments.}, keywords = {Drinage systems,pipe drains,gravel filled mole drains,net profit}, url = {https://zjar.journals.ekb.eg/article_53897.html}, eprint = {https://zjar.journals.ekb.eg/article_53897_84c4f10b42fd0caf8e4180276143e9a9.pdf} } @article { author = {Abd El-Hamid, Kamal and Morad, M. and Ali, M. and Hegazi, K.}, title = {STUDY ON THE MECHANIZATION OF FEED DISTRIBUTION IN AQUACULTURE}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {693-707}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53899}, abstract = {The present research aimed to optimize some different operating parameters affecting the performance of the feed blowing machine to be used successfully for feeding fish in ponds. Two experiments were carried outfor this purpose. The first experiment was run in the laboratory underfourdifferent blower revolving speeds (1500, 1700, 2700 and 3000 rpm) and three types of blades (backward curved blades, radial blades and forward curved blades). The second experiment was run in the field under four different tractor forward speeds (2, 3.13, 4.5 and 6 km/hr.) and the same three types of blades at constant blower revolving speed of 2700 rpm.All experiments were conducted using floating type aquatic feed pellets. Performance of the feed blowing machine was evaluated in terms of distribution width, coefficient of variation, coefficient of uniformity, pellets flow rate, machine productivity, energy requirements and operational cost. The obtained results revealed that the optimum operating parameters for the feed blowing machine were 2700 rpm blower revolving speed with the use of forward curved blades at 3.13 km/hr., tractor forward speed. Under these parameters the coefficient of uniformity value was 0.945, coefficient of variation value was 1.56% and distribution width was 8 m. }, keywords = {Blowing machine,revolving speed,forward speed,machine productivity}, url = {https://zjar.journals.ekb.eg/article_53899.html}, eprint = {https://zjar.journals.ekb.eg/article_53899_607cd7fb0b6bc912b43d5b98d203acbf.pdf} } @article { author = {Khalifa, Sameh and Arnaout, M. and Afify, M. and El-Sharabasy, M.}, title = {PRFORMANCE EVALUATION OF A RICE MILLING MACHINE UNDER EGYPTIAN CONDITION}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {709-725}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53902}, abstract = {The present work was carried out in a private rice milling center, Farskour, ­­­­­Damietta Governorate, Egypt. The objective of this study was to test the rice milling machine which is widely used in most Egyptian villages. The experimental studies were carried out to evaluate the performance of a rice milling machine. The performance of the milling machine was studied under the following parameters: feed rate, clearance of out let, and grain moisture content in terms of total grain losses, overall machine efficiency, machine productivity, specific energy, criterion costs. The experimental results revealed that the highest values of machine productivity and overall machine efficiency were 1.086 and 1.173 Mg/hr., and 86.75 and 93.00% for Giza-178 and Sakha-101 varieties, respectively, while the lowest values of required power and specific energy were 11.28 and 11.05 kW; and 14.23 and 13.29 kW.hr./Mg, respectively, for the same rice varieties, furthermore the lowest values of both operational and criterion costs were 42.95 and 41.30 LE/Mg; and 271.80 and 254.28 LE/Mg, respectively, for the same rice varieties.  The optimum operating parameters of milling machine were found at 1.4 Mg/hr., feed rate with 7.5 mm clearance of out let at 12% grain moisture content for sakha 101 variaty while, for rice variety Giza 178 the optimum operating parameters of milling machine were found at 1.2 Mg/hr., feed rate with 5.0 mm clearance of out let at 14% grain moisture content.}, keywords = {Clearance of out let,moisture content,Feed rate}, url = {https://zjar.journals.ekb.eg/article_53902.html}, eprint = {https://zjar.journals.ekb.eg/article_53902_90db213147c509c18ba0f814c9535dc6.pdf} } @article { author = {Atiya, Atiya and Morad, M. and Tawfik, M. and Wasfy, K.}, title = {FABRICATING AND PERFORMANCE EVALUATING OF AN EXPERIMENTAL PROTOTYPE OF DOWNDRAFT BIOMASS GASIFIER}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {727-740}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53905}, abstract = {Thermochemical conversion process by the gasification to convert the agricultural residues to gaseous fuel using the biomass partial oxidization theory is a very potential as a simple, clean and sustainable method for producing heat and power at rural and remote regions with less contamination compared to the fossil fuel. The biomass gasification process produced a mixture of gases called the producer gas, which contains of carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), hydrogen (H2) and nitrogen (N2). Hence, the aim of this investigation is fabricating and evaluating  the performance of a prototype fixed bed downdraft gasifier  using corn stover pieces and air as a gasifying agent under different equivalence ratios (ER) of  0.18, 0.24 and 0.36, corn stover particle size (PS) of 1-5, 6-10 and 11-15 mm and working temperature (WT) after throat of 700, 800 and 900°C, takes into consideration the gas composition, temperature profile, the lower heating value, gas yield and gasification efficiency. According to the obtained results, it is recommended to operate the gasifier  at  ER of 0.24, PS of 1-5mm and working temperature of 900°C, obtained the highest  concentration for CO (18.02%), H2 (11.22%), CH4 (3.317) and CnHm (1.751%), gas lower heating value of 5.833 MJ/Nm3 at gasification efficiency of  66.89% and gas yield of 1.70 Nm3/kg. }, keywords = {Biomass gasification,downdraft gasifier,corn stover,producer gas,gasification efficiency}, url = {https://zjar.journals.ekb.eg/article_53905.html}, eprint = {https://zjar.journals.ekb.eg/article_53905_d4831bd7562c79ecddfa8a8c0122b125.pdf} } @article { author = {الغــريب, أيمـن}, title = {(تقييم دور نظم المعلومات الإدارية فى إدارة الأزمات التنظيمية(دراسة ميدانية}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {741-751}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53907}, abstract = {إن التوسع فى استخدام الوسائل التکنولوجية الحديثة واتباع سياسات جديدة لتطوير الأداء الإدارى وتحسين مخرجاته بما يتماشى مع التطور السريع فى تکنولوجيا المعلومات والبرمجيات، وکذلک الطفرة الکبيرة فى وسائل الاتصال والتکنولوجيا المتقدمة، کلها أمور أدت إلى تصميم نظم معلومات إدراية (MIS) تمکن المنظمات المعاصرة من تحقيق أداء تنظيمى فعال وتقديم خدمات إدارية على مستوى جيد بتکلفة أقل وبطريقة أسهل، ومن المتوقع أن ينعکس الاعتماد على نظم المعلومات الإدارية على السياسات والقوانين والتشريعات القائمة وتنمية قدرات الموارد البشرية والتى تمکن المنظمات من مواجهة الأزمات التنظيمية، وهدفت الدراسة إلى الوقوف على مدى توافر متطلبات نظم المعلومات الإدارية، وکذلک القيود والمعوقات التى تحد من فاعلية نظم المعلومات الإدارية بجامعتى قناة السويس والزقازيق، وکذلک إختبار العلاقة بين تطبيق نظم المعلومات الإدارية وإدارة الأزمات التنظيمية وذلک بجامعتى قـناة السويس والزقازيق، وقد کانت أهم نتائج الدراسة وجوب تطوير وتنويع مهارات العاملين بصفة مستمرة ووجوب الإستمرار فى متابعة الأساليب الإدارية الحديثة، وضرورة تغيير الظروف المحيطة بالعاملين والمسئولين عن تنفيذ نظم المعلومات الإدارية، وإکتشاف طرق جديدة للتدريب وتنمية القدرة على التفکير والإبتکار، تعديل بعض اللوائح والتوصيف الوظيفي بما يتلائم مع تطبيق هذا المنهج بشکل کامل.}, keywords = {نظم المعلومات الإدارية,إدارة الأزمات التنظيمية}, url = {https://zjar.journals.ekb.eg/article_53907.html}, eprint = {https://zjar.journals.ekb.eg/article_53907_774bcc0b8b0049103345a2a219ffee4b.pdf} } @article { author = {الغــريب, أيمـن}, title = {(نموذج مقترح لاستخدام الإدارة الإلکترونية فى إدارة الأزمات التنظيمية (دراسة ميدانية}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {752-762}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53910}, abstract = {تتمثل مشکلة البحث فى ما إذا کان استخدام منهج الإدارة الإلکترونية يؤدى إلى إيجاد حلول فعالة لمعوقات النظام الإدارى التقليدى فى جامعتى قناة السويس والزقازيق محل الدراسة وزيادة فعالية الأداء التنظيمى، وکذلک ما إذا کان منهج الإدارة الإلکترونية قادراً على تطوير أداء العاملين بشکل فعال وتحسين جودة الخدمات الإدارية وزيادة قدرة المنظمة على مواجهة الأزمات التنظيمية، وهدفت الدراسة إلى الوقوف على مدى توافر عناصر نموذج منهج الإدارة الإلکترونية، وکذلک القيود والمعوقات التى تحد من فاعلية منهج الإدارة الإلکترونية بجامعتى قناة السويس و الزقازيق، وکذلک إختبار العلاقة بين تطبيق منهج الإدارة الإلکترونية وإدارة الأزمات التنظيمية وذلک بجامعتى قـناة السويس والزقازيق، وقد أوصت الدراسة بتأسيس بنية تحتية حديثة لشبکة الإتصالات والمعلومات لتطبيق منهج الإدارة الإلکترونية على مستوى الجامعة، وتوفير الإعتمادات المالية اللازمة للتطبيق الفعال لمنهج الإدارة الإلکترونية، وصيانة أجهزتها وشبکاتها.}, keywords = {الإدارة الإلکترونية,إدارة الأزمات التنظيمية}, url = {https://zjar.journals.ekb.eg/article_53910.html}, eprint = {https://zjar.journals.ekb.eg/article_53910_30e0a32b8b28af6bbb8bfcc42250ea39.pdf} } @article { author = {على, عادل and عکرش, أيمن and الديب, هدى and طنطاوي, علام}, title = {محـــددات تطبيـــق ممارســــــات الحفــاظ علــى مياه الري في بعض قري محافظة کفــــر الشـــيخ}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {763-780}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53912}, abstract = {استهدف هذا البحث التعرف على مستوي کل من معرفة، اتجاه، وتطبيق الزراع المبحوثين لممارسات الحفاظ علي مياه الري بقريتي الدراسة الأعلى والأقل في المساحة بمحافظة کفر الشيخ، اختبار معنوية الفروق بين متوسطي قريتي الدراسة الأعلى والأقل في المساحة فيما يتعلق بمستوى کل من معرفة، اتجاه، وتطبيق الزراع المبحوثين لممارسات الحفاظ علي مياه الري کل على حدى، التعرف على علاقة بعض المتغيرات المستقلة المدروسة بمستوي کل من معرفة، اتجاه، وتطبيق الزراع المبحوثين لممارسات الحفاظ على مياه الري، کل على حدى، تحديد الإسهام النسبي للمتغيرات المستقلة المدروسة ذات الارتباط مجتمعة فى تفسير التباين الکلي فى تطبيق الزراع المبحوثين لممارسات الحفاظ على مياه الري، وترتيب هذه المتغيرات وفقا لأهميتها النسبية، التعرف علي أهم المشکلات التي تعوق الزراع المبحوثين في الحفاظ علي مياه الري، وکذلک مقترحاتهم في التغلب عليها من وجهة نظرهم، أجريت الدراسة الراهنة اعتمادا على منهج المسح الاجتماعي بالعينة فى محافظة کفر الشيخ، خصوصا أن أغلب مناطقها تقع فى نهايات الترع والمصارف التى تتسم بمحدودية مياه الري القادمة إليها، ولقد تم اختيار مرکزين اداريين من هذه المحافظة بطريقة عمدية أحدهما أکبر مرکز في المساحة وهو مرکز سيدى سالم، والآخر أصغر مرکز في المساحة وهو مرکز فوه، ثم تم اختيار أکبر قرية من المرکز الأکبر في المساحة فکانت قرية کوم الدهب، کما تم اختيار أصغر قرية في المساحة في المرکز الأصغر في المساحة فکانت قرية منية الإشراف کمنطقتين للدراسة الميدانية، وبحصر عدد المزارعين في سجلات الحيازة الزراعية الموجودة بالجمعية التعاونية الزراعية بالقريتين، وجد أن جملة هؤلاء المزارعين (2689) مزارع منهم (2217) مزارع بالقرية الاکبر في المساحة، و(472) مزارع بالقرية الأصغر في المساحة، وتم سحب عينة منهم بطريقة المعاينة العشوائية المنتظمة بطول فئة (10) مزارعين بنسبة (10%) فبلغت (270) مزارعاً تم توزيعها بطريقة التوزيع النسبي علي القريتين فکانت (222) مزارع من القرية الاکبر في المساحة، و(48) مزارعاً من القرية الأصغر في المساحة. ولقد تم جمع البيانات بطريقة المقابلة الشخصية باستخدام صحيفة الاستبيان مع عينة المزارعين، ولقد تم عمل اختبار مدى صلاحية استمارة الاستبيان بوسطة (اختبار مبدئيPre-test) على عينة قوامها (20) مزارع من خارج عينة الدراسة، وتم أجراء بعض التعديلات عليها لتصبح أکثر ملائمة لمستوي فهم المزارعين المبحوثين، وقد تم جمع البيانات خلال الفترة من اول شهر نوفمبر حتى اخر ديسمبر عام 2016م، أستخدم فى تحليل بيانات الدراسة جداول الحصر العددي، النسب المئوية، المتوسط الحسابي، الانحراف المعياري، معامل ألفا کرو نباخ لقياس ثبات المقاييس المستخدمة فى الدراسة، اختبار "مان-ويتني"(ي) Mann-Whitney U Test، اختبار معامل الارتباط البسيط لبيرسون، ونموذج التحليل الارتباطي الانحداري المتدرج الصاعد (Step-Wise)، وکانت اهم النتائج التى تم التوصل إليها هي: تبين أن أکثرية المبحوثين بالقرية الأکبر في المساحة (50.5%)، (70.5%)، (60.8%) کان مستوي معرفتهم بممارسات الحفاظ على مياه الري مرتفع، اتجاههم الايجابي متوسط، ودرجة تطبيقهم لها متوسط، على التوالي. کما تبين أن أکثرية المبحوثين بالقرية الأصغر في المساحة (50%)، (60.4%)، (47.9%) کان مستوي معرفتهم بممارسات الحفاظ على مياه الري مرتفع، اتجاههم الايجابي متوسط، ودرجة تطبيقهم لها متوسط، على التوالي، أن هناک فروقا معنوية عند مستوى معنوية 0.01 بين متوسطي القرية الأکبر والقرية الأصغر فى المساحة لصالح القرية الأصغر فيما يتعلق بتطبيق ممارسات الحفاظ علي مياه الري، أن هناک أربعة متغيرات مستقلة أسهمت مجتمعة اسهاما معنويا فى تفسير (35.9 %) من التباين الکلي فى درجة تطبيق ممارسات الحفاظ على مياه الري، وتحددت نسبة الاسهام النسبي لکل منها على التوالي: الانفتاح الثقافي (27.3%)، مستوي المعرفة بممارسات الحفاظ على مياه الري (6.7%)، الاتصال بوکلاء التغيير (1.2%)، والدخل الشهري بالجنية (0.7%)، أن أهم المشکلات التي تعوق الزراع المبحوثين في الحفاظ علي مياه الري في القرية الأکبر في المساحة هي عدم نظافة المياه من المبيدات والحشائش، بينما کانت في القرية الأصغر في المساحة هي رمي الحيوانات الميتة في الترع، أن أهم المقترحات من وجهة نظر الزراع المبحوثين من أجل المحافظة علي مياه الري في القرية الأکبر في المساحة هي تطهير الترع من الحشائش وورد النيل، بينما کانت في القرية الأصغر في المساحة عدم إلقاء المبيدات أو عبوات الرش أو المخلفات المنزلية أو المخلفات الزراعية فى الترع والمصارف.}, keywords = {ممارسات الحفاظ على مياه الري,کفر الشيخ}, url = {https://zjar.journals.ekb.eg/article_53912.html}, eprint = {https://zjar.journals.ekb.eg/article_53912_4776001cf9c95d80e573e8d541306296.pdf} } @article { author = {عبد الجواد, أحمد and عکرش, أيمن and خليفة, إبراهيم and سليم, حازم}, title = {تحليل اجتماعي بيئي لاستخدام بعض الأساليب الحديثة في إدارة المخلفات الصناعية في ريف وحضر محافظة الشرقية}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {781-800}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53916}, abstract = {استهدف البحث التعرف على مستوى معرفة، وتطبيق مديري المنشات الصناعية المبحوثة لکل مجال من مجالات أساليب الإدارة الحديثة للمخلفات الصناعية وکذلک الدرجة الکلية للمعرفة والتطبيق لها، التعرف على علاقة المتغيرات المستقلة المدروسة بمستوى معرفة، وتطبيق مديري المنشات الصناعية المبحوثة لکل مجال منها وکذلک الدرجة الکلية للمعرفة والتطبيق لها، اختبار معنوية الفروق بين متوسطي منطقتي الدراسة الحضرية والريفية فيما يتعلق بمستوي معرفة، وتطبيق أساليب الإدارة الحديثة لإدارة المخلفات، تحديد الإسهام النسبي للمتغيرات المستقلة مجتمعه في تفسير التباين الکلى لدرجة کل من معرفه، وتطبيق أساليب إدارة المخلفات الصناعية، التعرف على الأسباب التي تؤدي إلى تلوث البيئة وأولوياتها، التعرف على المشکلات التي تؤدي إلى قلة استخدام الأساليب الحديثة في إدارة المخلفات الصناعية، ومقترحات التغلب عليها من وجهه نظر المبحوثين، وأجريت الدراسة الميدانية فى مدينه العاشر من رمضان لتمثل المنطقة الحضرية التي بها منشات صناعية بالمحافظة، کما تم اختيار اقرب القرى التي بها منشات صناعية لهذه المدينة فکانت منطقة صناعية تابعة لقرية العدلية بمرکز بلبيس حيث أنها منطقة صناعية معتمدة من المحافظة وتحتوى على أکبر عدد من المنشات الصناعية، وجمله عدد المنشات الصناعية بهاتين المنطقتين 1111 منشأة (956) منشأة بمدينه العاشر من رمضان تم حسابها من جهاز العاشر من رمضان عام 2016، 165 منشأه بريف العدلية مرکز بلبيس تم حسابها من جمعية مستثمري المنطقة)، تم سحب عينة منها بنسبه 10% من کل منطقة فبلغت جمله العينة (111) منشأة منها (95) منشأة بالعاشر، (16) منشاة بريف بلبيس، ولقد تم جمع البيانات اللازمة لإجراء الدراسة من خلال استمارة استبيان جمعت لتحقيق أهداف الدراسة بالمقابلة الشخصية مع مديري هذه المنشآت، وتم اختيار هذه المنشات بطريقة المعاينة المنتظمة بطول فئة 10 منشآت في کل منها، ولقد تم جمع البيانات خلال الفترة من بداية شهر يناير حتى نهاية شهر مارس عام 2016، وتم تحليلها بواسطة التکرار، النسب المئوية، المتوسط المرجح, الدرجات المعيارية، الدرجات التائية، اختبار مان ويتني, معامل ارتباط بيرسون، وأسلوب التحليل الارتباطي والانحداري المتعدد التدريجي الصاعد. وکانت أهم النتائج التي توصلت إليها الدراسة: تبين أن مستوي معرفة مديري المنشآت الصناعية المبحوثة لکل مجال مرتفعة: المخلفات الصلبة العادية والخطرة، تلوث الهواء، الصحة والسلامة المهنية، الکيماويات، الصرف الصحي والصناعي، ومجال البيانات العامة للمنشاة بنسب (50.4%)، (52.2%)، (82.8%)، (47.7%)، (63.9%)، (80.1%) علي التوالي، کما تبين أن درجة تطبيق مديري المنشآت الصناعية المبحوثة کانت مرتفعة بالنسبة لکل من مجال الصحة والسلامه المهنية، ومجال البيانات العامة للمنشاة بنسب (64.8%)، (45.9 %)على التولي، ومتوسطة لکل من مجال تلوث الهواء، ومجال الصرف الصحي والصناعي بنسب (37.8%)، (38.8%) على التوالي، ومنخفضة لمجال المخلفات الصلبة العادية والخطرة، ومجال الکيماويات بنسب (45.9%)، (51.4%) على التوالي. واتضح أن هناک فروقا معنوية عند مستوية معنوية 0.01 بين متوسطي المنطقة الحضرية والمنطقة الريفية فيما يتعلق بکل من: الدرجة الکلية للمعرفة والتطبيق، وکل مجال من مجالات المعرفة، والتطبيق، تبين أن هناک ثلاثة متغيرات مستقلة (هي: المشارکة الاجتماعية في الأنشطة البيئية, الحالة التعليمية, مساحة المنشأة) أسهمت إسهاما معنويا في تفسير 51% من التباين الکلي في مستوى معرفة المبحوثين، اتضح أن هناک ثلاثة متغيرات مستقلة (هى: الدرجة الکلية للمعرفة، مساحة المنشأة, الحالة التعليمية) أسهمت مجتمعة إسهاما معنويا في تفسير 71.6% من التباين الکلي في درجة تنفيذ المبحوثين، تبين أن سبب الممارسات الصحيحة مکلفه احتل المرتبة الأولى من بين الأسباب التي تؤدي إلى تلوث البيئة في مدينة العاشر وإجمالي العينة، بينما في قرية العدلية کان سهوله القيام بهذه الممارسات الخاطئة عن غيرها احتل المرتبة الأولى، جاءت مشکلة زيادة تکلفة معدات الحفاظ على البيئة وقلة الموارد المالية لشرائها في المرتبة الأولى من المشکلات التي تؤدي إلى قله استخدام الأساليب الحديثة من وجهه نظر المبحوثين.}, keywords = {التحليل الاجتماعي البيئي,إدارة المخلفات الصناعية، محافظة الشرقية}, url = {https://zjar.journals.ekb.eg/article_53916.html}, eprint = {https://zjar.journals.ekb.eg/article_53916_59b41bcc141ceaaf5bfdccfc05811931.pdf} } @article { author = {اسماعيل, أحمد and عکرش, أيمن and نصرت, سونيا and سليم, حازم}, title = {العوامل الاجتماعية والاقتصادية المؤثرة على مستوى معرفة وتطبيق الممارسات الفنية السليمة لمشروعات الاستزراع السمکى بمحافظة الشرقية}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {801-824}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53918}, abstract = {استهدفت الدراسة التعرف على مستوى الامکانيات البشرية والمادية لمشروعات الاستزراع السمکى غير المرخصة المدروسة فى محافظة الشرقية، التعرف على درجة معرفة، وتطبيق أصحاب مشروعات الاستزراع السمکى غير المرخصة لکل مجال من مجالات الممارسات الفنية السليمة للاستزراع السمکى، وکذلک الدرجة الکلية لها، التعرف على علاقة بعض المتغيرات المستقلة المدروسة بدرجة کل من معرفة، وتطبيق اصحاب مشروعات الاستزراع السمکى غير المرخصة لکل مجال من مجالات الممارسات الفنية السليمة للاستزراع السمکى، وکذلک الدرجة الکلية لها، تحديد الإسهام النسبي للمتغيرات المستقلة المدروسة ذات الارتباط فى تفسير التباين الکلي فى الدرجة الکلية لکل من معرفة، وتطبيق أصحاب مشروعات الاستزراع السمکى غير المرخصة للممارسات الفنية السليمة. أجريت الدراسة الميدانية اعتمادا على منهج المسح الاجتماعي بطريقة العينة فى محافظة الشرقية، حيث تم اختيار مرکز الحسينية لکونه أکثر مرکز تنتشر به مشروعات الاستزراع السمکى غير المرخصة عددها (1602) مشروع سمکي، تم سحب نحو 5% من إجمالى هذه المشروعات، فأصبح حجم العينة (80) مشروع غير مرخص، وتم جمع البيانات اللازمة للدراسة بواسطة اداة استمارة الاستبيان بالمقابلة الشخصية مع أصحاب هذه المشروعات، والذين تم اختيارهم بطريقة المعاينة العشوائية المنتظمة بطول فئة 20 مشروع، وجمعت البيانات خلال الفترة من منتصف شهر نوفمبر حتى منتصف ديسمبر عام 2016. ولقد استخدم فى تحليل بيانات الدراسة: جداول الحصر العددي، النسب المئوية، المتوسط الحسابي، الانحراف المعياري، الدرجات المعيارية، الدرجات التائية، معامل ألفا کرونباخ لقياس ثبات المقاييس المستخدمة فى الدراسة،  معامل الارتباط البسيط لبيرسون لاختبار العلاقات الارتباطيه بين المتغيرات المستقلة والمتغير التابع، ونموذج التحليل الإرتباطي الانحداري المتدرج الصاعد (Step-wise)، لتحديد درجة إسهام المتغيرات المستقلة ذات الارتباط مجتمعة على المتغير التابع، وکانت أهم نتائج هذه الدراسة ان: (1) کان اکثرية المشروعات المبحوثة (56.3%) الدرجة الکلية للامکانيات البشرية والمادية لها متوسطة، وکان أکثرية أصحاب هذه المشروعات (42.5%)، (45%) الدرجة الکلية لمعرفتهم، والدرجة الکلية لتطبيقهم للممارسات الفنية السليمة لها متوسطة، على الترتيب، (2) بالنسبة للدرجة الکلية للمعرفة بالممارسات الفنية: يتضح أن هناک علاقة ارتباطيه معنوية موجبه عند مستوى 0.05 بين جودة المسکن، الدرجة الکلية للامکانيات البشرية والمادية للمشروعات، بينما وجد أن هناک علاقة ارتباطية معنوية موجبة عند مستوى 0.05 بينها وبين درجة الدافعية للإنجاز. بينما وجد أن هناک علاقة ارتباطيه معنوية سالبة عند مستوى 0.01 بينها وبين امتلاک مستلزمات الحياة الحديثة، أما العلاقة بباقى المتغيرات فکانت غير معنوية، (3) بالنسبة للدرجة الکلية للتطبيق للممارسات الفنية: يتضح ان هناک علاقة ارتباطيه معنوية موجبه عند مستوي 0.01 بينها وبين الدرجة الکلية للمعرفة بالممارسات الفنية،  بينما يتضح ان هناک علاقة ارتباطيه معنوية موجبه عند مستوي 0.05 بينها وبين الدرجة الکلية للامکانيات البشرية والمادية للمشروعات، (4) بينما يتضح أن هناک أربعة متغيرات مستقلة (الدرجة الکلية للامکانيات البشرية والمادية للمشروعات، جودة السـکن، درجة الدافعية للإنجاز، ملکية الأجهزة المنزلية الکهربائية والکمالية) أسهمت مجتمعة بنسبة (54.1%) إسهاما معنويا فى تفسير التباين الکلي فى درجة المعرفة الکلية بالممارسات الفنية السليمة لمشروعات الاستزراع السمکى، (5) أن هناک متغيرين مستقلين هما (درجة المعرفة الکلية بالممارسات الفنية، الدرجة الکلية للامکانيات البشرية والمادية للمشروعات) أسهما مجتمعين بنسبة (61.3%) إسهاما معنويا في تفسير التباين الکلي فى درجة التطبيق الکلية للممارسات الفنية السليمة لمشروعات الاستزراع السمکى المدروسة.}, keywords = {مشروعات الاستزراع السمکى,الممارسات الفنية السليمة,محافظة الشرقية}, url = {https://zjar.journals.ekb.eg/article_53918.html}, eprint = {https://zjar.journals.ekb.eg/article_53918_4357e364fd0d2976adee6e767ac5fbe2.pdf} } @article { author = {الخولى, محمد and بسيونى, شيماء}, title = {دراسة تحليلية لمعارف وإتجاهات الزراع نحو الجمعيات التعاونية الزراعية بمحافظة الدقهلية}, journal = {Zagazig Journal of Agricultural Research}, volume = {44}, number = {2}, pages = {825-840}, year = {2017}, publisher = {Zagazig University, Faculty of Agriculture}, issn = {1110-0338}, eissn = {3009-7193}, doi = {10.21608/zjar.2017.53920}, abstract = {استهدف هذا البحث التعرف على الخصائص العامة للزراع المبحوثين، والتعرف على مصادر المعلومات التى يحصل منها الزراع على معلوماتهم الزراعية، والتعرف على معرفة الزراع المبحوثين بأهداف الجمعية التعاونية الزراعية، والتعرف على العوامل المرتبطة بدرجة معرفة الزراع المبحوثين بأهداف الجمعية التعاونية الزراعية، وتحديد الإسهام النسبى للمتغيرات المرتبطة فى تفسير التباين الکلى فى درجة معرفة الزراع المبحوثين بأهداف الجمعية التعاونية الزراعية، والتعرف على اتجاه الزراع المبحوثين نحو الجمعية التعاونية الزراعية، والتعرف على العوامل المرتبطة بدرجة اتجاه الزراع المبحوثين نحو الجمعية التعاونية الزراعية، وتحديد الإسهام النسبى للمتغيرات المرتبطة فى تفسير التباين الکلى فى اتجاه الزراع المبحوثين نحو الجمعية التعاونية الزراعية، وتحديد المشکلات التى تواجه الزراع عند التعامل مع الجمعيات التعاونية الزراعية ومقترحات حلها، أجرى هذا البحث في محافظة الدقهلية وتم إختيار أکبر مرکزين هما مرکزى السنبلاوين وميت غمر وتم إختيار أکبر قرية من حيث عدد الزراع الحائزين أيضا فى کل مرکز وتم اختيار قرية أتميدة من مرکز ميت غمر وقرية البلامون من مرکز السنبلاوين، وتم إختيار عينة مکونة من 100 مبحوث بواقع 50 مبحوث من کل قرية، وتم جمع البيانات من الزراع المبحوثين بإستخدام طريقة الإستبيان بالمقابلة الشخصية، ومن أهم النتائج التى توصل إليها البحث: أن حوالى (60.0%) من إجمالى المبحوثين معرفتهم بأهداف الجمعية التعاونية الزراعية منخفضة. وأن حوالى (34.0%) معرفتهم متوسطة، فى حين أن نحو (6.0%) معرفتهم مرتفعة، ووجود علاقة إرتباطية معنوية بين درجة معرفة الزراع المبحوثين بأهداف الجمعية التعاونية الزراعية وبين کل من: السن، درجة التعليم، عدد سنوات الخبرة فى الزراعة، مساحة الأرض الزراعية، درجة المشارکة الإجتماعية غير الرسمية، درجة المشارکة الإجتماعية الرسمية،  درجة القيادية، درجة الإتجاه نحو المستحدثات الزراعية و درجة التعرض لمصادر المعلومات الزراعية، کما أشارت النتائج الواردة إلى أن حوالى (36.7%) من إجمالى المبحوثين اتجاههم نحو الجمعية التعاونية الزراعية ضعيف، وأن نحو (40.7%) اتجاههم محايد نحو الجمعية التعاونية الزراعية. فى حين أن حوالى (22.6%) اتجاههم قوى نحو الجمعية التعاونية الزراعية. کما أظهرت النتائج وجود علاقة إرتباطية معنوية بين درجة اتجاه الزراع نحو الجمعية التعاونية الزراعية وبين کل من (السن، عدد سنوات الخبرة فى الزراعة، مساحة الأرض الزراعية، حجم حيازة الحيوانات الزراعية، درجة المشارکة الإجتماعية الرسمية، درجة القيادية، درجة الاتجاه نحو المستحدثات الزراعية، درجة التعرض لمصادر المعلومات، درجة معرفة الزراع بأهداف الجمعية التعاونية الزراعية)، کما أوضحت النتائج أن المشکلات التى تواجه الزراع المبحوثين عند تعاملهم مع الجمعيات التعاونية الزراعية هى: عدم توفر الآلات الزراعية الحديثة بالجمعية، عدم توفر العمالة الفنية المدربة على استخدام الآلات، عدم توفير البذور في الوقت المناسب، ارتفاع سعر التقاوي، انخفاض إنتاجية الأصناف الموجودة، صعوبة إجراءات الحصول على التقاوي والأسمدة والمبيدات، عدم توفر الصنف المطلوب من التقاوى فى الوقت المناسب، عدم توفر الکمية المطلوبة من التقاوي في الوقت المناسب، المبيدات الموجودة بالجمعية غير مضمونة، عدم وجود إرشاد تسويقي، قله تواجد العاملين فى الجمعية باستمرار، العاملين فى الجمعية لا يهتموا بمتابعة مشاکل الزراع، ومقابلة العاملين بالجمعية للزراع غير جيدة، عدم قيام المرشد بتقديم التوصيات فى الوقت المناسب، عدم کفاية عدد المرشدين في الجمعية، ضعف معلومات المرشدين عن الأصناف الجديدة، عدم وعي المرشدين بظروف الزراع، البذور الحالية غير مضمونة، عدم ملائمة البذور الحالية للبيئة الزراعية، ارتفاع أسعار الأسمدة الکيماوية، عدم توافرها بالجمعية الزراعية، عدم توافر آلات الرش، عدم توافر المبيد فى الوقت المناسب، والعاملين بالجمعية لا يعطوا الوقت الکافي للسماع لشکاوى الزراع، عدم وجود مرشدين متخصصين فى کافه المجالات، ويشترط دفع ثمن التقاوي فوري ودفعة واحدة.}, keywords = {الإتجاهات,الزراع,الجمعيات,التعاونية,الزراعية,الدقهلية}, url = {https://zjar.journals.ekb.eg/article_53920.html}, eprint = {https://zjar.journals.ekb.eg/article_53920_abc35e37a7fd7ab1ef7eb82cc8243ddc.pdf} }