ORIGINAL_ARTICLE
PHOSPHORUS AND MICRONUTRIENTS FERTILIZATION IMPACT ON FABA BEAN PRODUCTIVITY (Vicia faba L.)
This investigation was carried out in a demonstrated field at Al-Ibrahimia district, El-Sharkia Governorate, Egypt, during 2014/2015 and 2015/2016 winter seasons to study the impact of three phosphorus levels (check, 15.5 and 31 kg P2O5/fad.) and five micronutrient spraying treatments [Zn, Mn, Fe, Zn + Mn + Fe and control (tap water)] on faba bean yield (Vicia faba L. cv. Giza 843) and seed protein content. The obtained results could be summarized as follows: Raising phosphorus level to 31 kg P2O5/fad., significantly increased number of pods per plant, number of seeds per pod and plant, as well as seed and stover yields per fad. Whereas, 100-seed weight and seed protein content were significantly decreased. However, plant height was not significantly affected by phosphorus levels. Micronutrients spraying reflected significant increase in seed yield and yield attributes. The foliar application of any of the following micronutrient treatments i.e. Mn, Fe and Zn + Mn + Fe had significant effect on seed yield per fad., while, micronutrient spraying treatments had insignificant effect on number of branches per plant and seed protein content compared with the control treatment. The interaction between the two factors had significant effects on yield and its components, where the highest seed yield per fad., (13.79 ardab) was achieved by addition of 31 kg P2O5/fad., with Mn foliar application (0.4 g/l).
https://zjar.journals.ekb.eg/article_52282_5c2d4706697c14c40aeb910ff34add3c.pdf
2017-05-01
853
863
10.21608/zjar.2017.52282
Faba bean
phosphorus
Micronutrients
seed protein content
El-Sayed
El-Sobky
elsayedelsobky@yhaoo.com
1
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
M.
Yasin
taha_agronomy_1978@yahoo.cm
2
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
YIELD STABILITY OF WHEAT UNDER SOME DROUGHT AND SOWING DATES ENVIRONMENTS IN DIFFERENT IRRIGATION SYSTEMS
Several field experiments were conducted to screen 29 bread wheat lines (Triticum aestivum L.), 5 durum wheat lines (Triticum durum L.) and 4 commercial check varieties for grain yield (ardab/fad.) under twelve diverse environments for drought and heat stress in drip and sprinkler irrigation systems of newly reclaimed sandy soils and surface flood irrigation system of old clay soils. The combined analyses of variance showed highly significant differences among environments, genotypes and environments x genotypes for all irrigation systems. Wheat genotypes had higher grain yield under drip irrigation than sprinkler and surface flood irrigation systems. Drought stress and delay sowing date reduced grain yield for all wheat genotypes compared with optimum water irrigation and favorable sowing date. Grain yield over twelve environments ranged from 15.06 for Line 2 to 20.02 (ardab/fad.) for Line 13. Wheat Lines 9, 18 and 21 exhibited the desirable drought and heat sensitivity indices under all irrigation systems (SI < 1). The mean square of joint regression exhibited highly significant differences among genotypes (G), environments (E), the G x E interaction, (E + G × E) and environment (linear). Also, the linear interaction (G x E linear) was highly significant when tested against pooled deviation. Phenotypic stability parameters indicated that bread wheat genotypes Misr 1, Line 13, Line 14 and Line 3 and durum lines 31 (G33), 33 (G35) and 32 (G34) were highly adapted to favorable environments, whereas G36 (Line 34) was adapted to drought stress and delay sowing date environments. Genotypic stability parameters showed that the most desired and stable wheat genotypes were Line 10 and Misr 1. The AMMI analysis of variance showed that environments explained 77.21% of total variation and it was greater than genotypes (5.30%) and genotype × environment (GEI) (12.54%). IPCA 1 score explained 25.08% and IPCA 2 had 17.81% of the total GEI for AMMI model. Whereas, IPCA 1 score explained 36.02% and IPCA 2 had 17.56% of the total GGEI for SREG model. According to the ASV ranking the bread wheat genotypes, Line 10, Giza 168, Line 15, Line 8 and Sakha 93 and durum line 31 (G33) were more stable. GGE biplot exhibited Line 3 as ideal wheat genotype for grain yield. Positive and significant correlation coefficients between , bi, αi and Pi were found among each other. The stability parameters i.e., S2di, λi, W2i, CV (%) and ASV were significantly correlated between each other, indicating that they measured similar aspects of stability.
https://zjar.journals.ekb.eg/article_52284_bf984d4e19e2ab11baf46b16624c3273.pdf
2017-05-01
865
886
10.21608/zjar.2017.52284
Wheat
drought
stability
AMMI model
drip
sprinkler
flood irrigation
Mohammed
Ali
abd_lhamed@yahoo.com
1
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
M.
Abdul-Hamid
2
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
IMPACT OF HUMIC ACID APPLICATION AND NITROGEN FERTILIZER LEVEL ON BREAD WHEAT PRODUCTIVITY UNDER SANDY SOIL CONDITIONS
Two field experiments were carried out at the Agricultural Research Station, Faculty of Agriculture, Zagazig University, El-Khattara region, Sharkia Governorate, Egypt during the two successive seasons of 2014/2015 and 2015/2016 to investigate the effect of three rates of humic acid application (0, 2 and 4 kg humic acid/fad.) and five nitrogen fertilizer levels (0, 30, 60, 90 and 120 kg N/fad.) on bread wheat (Triticum aestivum L. cv. Sids 12) grown in sandy soil under sprinkler irrigation system. Results of the combined analysis indicated that application of humic acid at 2 kg/ fad., significantly increased plant height (cm), flag leaf area (cm2), spike length (cm), number of spikes/m2, straw yield (ton/fad.) and harvest index as compared to control treatment. Furthermore, flag leaf chlorophyll content (SPAD), number of grains/spike, weight of grains/spike (g), 1000-grain weight (g), grain and biological yields (ton/fad.) showed significant increase due to raising humic acid application up to 4 kg/fad. On the other hand, it was found that plant height, spike length, number and weight of grains/spike, number of spikes/m2, 1000-grain weight, straw yield and harvest index were significantly increased by increasing nitrogen fertilizer levels up to 90 kg N/fad. Whereas, flag leaf area, flag leaf chlorophyll content, grain and biological yields per fad responded to each N increment up to 120 kg N/fad. Most studied traits were significantly affected by the interaction between humic acid and nitrogen fertilizer levels. It could be noticed that, application of humic acid resulted in reducing the requirement to N fertilizer application. The highest grain yield (16.25 ardab/fad.) was achieved by soil application of 4 kg humic acid with 90 kg N/fad.
https://zjar.journals.ekb.eg/article_52286_3a434dd36bfe85dc066b2be509224946.pdf
2017-05-01
887
897
10.21608/zjar.2017.52286
Wheat
nitrogen
humic
chlorophyll content
Mohamed
Yasin
taha_agronomy_1978@yhaoo.com
1
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
E.
El-Sobky
2
Agron. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
FLORAL CHARACTERS OF GERBERA (Gerbera jamesonii) AS AFFECTED BY FOLIAR APPLICATION OF HUMIC ACID AND CALCIUM CHLORIDE
This study was conducted in lath house, Horticultural Department, College of Agriculture, University of Baghdad- Jadriya, Iraq during the spring and fall seasons of 2015 to investigate the influence of foliar application of humic acid and calcium chloride on “Yanara” gerbera cultivar. This study included two factors; humic acid spray (H) and calcium chloride spray (Ca). The first factor was represented by four levels which were; 0 (H0), 5 (H5), 7.5 (H7.5) and 10 ml.l-1 (H10) and four levels of calcium chloride; 0 (Ca0), 50 (Ca50), 100 (Ca100) and 150 mg.l-1 (Ca150). Data were recorded during spring and fall seasons. The experimental results showed that spraying plants with humic acid at 10 ml.l-1 and calcium chloride at 150 mg.l-1 (H10Ca150) gave the highest values of flower number/plant (3.60 and 6.87), flower diameter (8.71 and 11.33 cm), vase life (11.90 and 11.34 day) for both seasons, respectively. The lowest values of these parameters were recorded with control treatment (H0Ca0). It could be concluded that spraying plants with humic acid at H10 and calcium chloride at Ca150 had improved flower characteristics in gerbera plant cv. Yanara.
https://zjar.journals.ekb.eg/article_52289_3db302658680ddcf0c9a6779d59c207d.pdf
2017-05-01
889
903
10.21608/zjar.2017.52289
Floral characters
Gerbera
foliar application
Humic acid
calcium chloride
Rana
Jawad
ranamousa@yahoo.com
1
Hort. and Landscape Dept., Coll. Agric., Baghdad Univ., Iraq
LEAD_AUTHOR
B.
Majeed
2
Hort. and Landscape Dept., Coll. Agric., Baghdad Univ., Iraq
AUTHOR
ORIGINAL_ARTICLE
تأثير نوع وترکيز السکريات على الإکثار الدقيق لأصل التفاح MM106 خارج الجسم الحي
أُجريت هذه التجربة في مختبر زراعة الأنسجة النباتية التابع لقسم البستنة وهندسة الحدائق - کلية الزراعة - جامعة بغداد - الجادرية، للمدة من شهر أيلول 2015 حتى شهر أيلول 2016، بهدف دراسة تأثير نوع وترکيز السکريات على إکثار أصل التفاح MM106 خارج الجسم الحي باستخدام الأجزاء النباتية (القمم النامية، العقد الساقية) المأخوذة من عقل ساقية غضة بعد تعقيمهما واختيار الجزء النباتي الأفضل في الاستجابة للتعقيم والأقل نسبة تلوث بوساطة مادتي هيبوکلوريت الصوديوم NaOCl بترکيزات 0،25 ،50 ،75 % وکلوريد الزئبق HgCl2 بترکيز 0.1%، زُرعت الأجزاء النباتية المعقمة في بيئة MS في مرحلة النشوء، وتم زراعة الأفرع الخضرية المحفزة في وسط MS المجهز بثلاثة أنواع من السکريات هي السکروز والسوربيتول والجلوکوز وبالترکيزات 30، 45،60 جم.لتر-1 لکل منهم بهدف مضاعفة الأفرع وزيادة أعدادها، أظهرت النتائج تفوق معاملة سکر السوربتول بترکيز 30 جم.لتر-1 في إعطاء أعلى عدد للأفرع (7.00 فرع.نبات-1) وأعلى وزن طازج (0.467 جم) وأعلى وزن جاف (0.122 جم) للأفرع.
https://zjar.journals.ekb.eg/article_52290_80ce64f1fe40ba56a6d203f5ad07f0bc.pdf
2017-05-01
905
911
10.21608/zjar.2017.52290
نوع السکريات
ترکيز السکريات
الإکثار الدقيق
أصل التفاح MM106
فرح
العقابي
1
وزارة الزراعة - الدراسات والتخطيط - العراق
LEAD_AUTHOR
لمياء
العامري
2
قسم البستنة وهندسة الحدائق - کلية الزراعة - جامعة بغداد - العراق
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF SOME ACTIVE MODIFIED ATMOSPHERE TREATMENTS ON QUALITY OF TOMATO (Solanum lycopersicum L.) FRUITS DURING COLD STORAGE AND SHELF LIFE PERIODS
In 2014 and 2015 growing seasons, tomato seedlings cv. Alisa were transplanted on 15th February and 6th March and harvested on 13th May and 25th May, respectively in a private farm, Belbeis district, Sharkia Governorate, Egypt and subjected to the following post-harvest treatments in Post-harvest Laboratory, Hort. Dept. Fac. Agric., Zagazig University: 1) stored in open air (control); 2) stored in active modified atmosphere (AMA) with 3% O2+3% CO2 ;3) AMA with 5% O2+3% CO2 ; 4) AMA with 5% O2+5% CO2 and 5) AMA with 7% O2+ 5% CO2 . Fruits of all treatments were stored for 35 days at 10±1ºC and 90-95% relative humidity (RH). Samples of each treatment were randomly taken at 7 days intervals to evaluate the effect of cold storage periods and the tested (AMA) treatments on fruit quality. After each cold storage period, some of these fruits were kept for 5 days in both seasons under conditions of 20ºC and 60-70% RH to detect the effect of treatments on shelf life. The tested active modified atmosphere (AMA) treatments tended to increase fruit firmness and vitam. C content as compared with the control during both cold storage and shelf life periods. On the contrary, AMA treatments tended to decrease fruit weight losses, fruit decay, TSS and lycopene content during both cold storage and shelf life periods. The advance of storage period from zero up to 35 days caused progressive increments in fresh weight losses, fruit decay, lycopene and TSS content of the successive samples which taken during cold storage and shelf life as compared with the control. On the contrary, the advance in cold storage period depressed fruit firmness and fruit ascorbic acid contents.
https://zjar.journals.ekb.eg/article_52291_96be8553b75efc81ed62a43cb9112629.pdf
2017-05-01
913
929
10.21608/zjar.2017.52291
Tomato
active modified atmosphere
Cold storage
shelf life
fruit quality
Asem
Hassan
asem2000_3000@yahoo.com
1
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
H.
Arisha
2
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
Bardisi
3
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Sabreen
Ibraheim
4
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
EVALUATION OF SOME FACTORS AFFECTING IN VITRO MICROPROPAGATION OF FEW SEEDED FRUIT GUAVA TREES
This study was carried out during the period from 2013 to 2016 in the Plant Tissue Culture Laboratory Hort. Dept., Fac. Agric., Zagazig University, Egypt to create a protocol for propagating few seeded fruit guava trees throughout the various stages of tissue culture technique. During the establishment stage, explants (nodal explants and shoot tips) were excised from 6- month- old seedlings grown in the green house. The excised explants were cultured in Murashige and Skoog (MS) medium supplemented with 1mg/l benzyl adenine (BA) combined with 100 mg/l polyvinylpyrrelidone (PVP). Results showed that nodal explants proved to be better than shoot tips concerning growth parameters. Different BA concentrations i.e. 0.0, 0.5, 1 or 2 mg/l proved the efficiency of 2mg/l BA for shoot proliferation from nodal explants, followed by 1mg/l BA. Inoculation nodal explants during different dates revealed that spring season (mid April) produced the best growth parameters. Obtained shoots about 1cm length from establishment stage were cultured in MS medium provided with BA or kinetin (Kin.), at different concentrations (0.0, 0.5, 1, 2, 4, or 6 mg/l). Results showed that BA recorded the highest multiplication rate compared with Kin., which produced one shoot, only, whereas 2mg/l BA gave the highest number of shoots/ explant (10.62 shoots/ explant). Addition of sucrose at 20, 30 or 40 g/l to MS medium supported with 2mg/l BA enhanced the efficiency of 40 g/l sucrose concerning number of shoots/explant (12 shoots/explant). The combination of 2mg/l BA and different auxins (NAA, IAA or IBA) at low concentrations showed that 2 mg/l BA combined with 0.5 mg/l IBA gave the highest number of shoots/ explant (11.20 shoots/ explant). During rooting stage, using each of NAA, IBA or IAA at 0, 1, 2 or 4 mg/l in MS medium, resulted in shoot rooting. Although NAA resulted in more number of roots/ shoot, IBA at 1 or 2 mg/l was adequate for producing better rooting shoots for acclimatization stage. The obtained rooted plantlets could be successfully acclimatized in peat moss medium incorporated with sand at 1:2 (V/V), since it gave 100% survival.
https://zjar.journals.ekb.eg/article_52292_b0a90b5227e4b47c06029a67219c3899.pdf
2017-05-01
931
944
10.21608/zjar.2017.52292
micropropagation
In vitro culture
few seeded fruit guava trees
nodal explants
shoot tips
benzyl adenine (BA)
kinetin (Kin.)
sucrose%
auxins
IBA
Doaa
Mahmoud
doa_sabry92@yahoo.com
1
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
G.
Sourial
2
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Atteyat
Abd El-Aziz
3
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
R.
Al-Ashkar
4
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
تأثير حامض الساليسلک والبنزيل أدنين على نمو وإزهار وإنتاج الجذور الدرنية لنبات الراننکيل Ranunculus asiaticus
نفذت دراسة للتعرف على تأثير نقع الجذور الدرنية بحامض الساليسلک Salicylic acid (SA) ورش النباتات بالبنزيل أدنين Benzyladenine (BA) على نمو وإنتاج نبات الراننکيل Ranunculus asiaticus في أحد البيوت البلاستيکية التابعة لقسم البستنة وهندسة الحدائق/ کلية الزراعة- جامعة بغداد في موقع الجادرية في الفصل الخريفي لعام 2015، نقعت الجذور الدرنية لنبات الراننکيل بالتراکيز 0 ، 50 ، 100 ملجم/لتر من SA لمدة ساعتين قبل الزراعة، وعند بلوغ النباتات مرحلة 4-6 أزواج من الأوراق رشت بتراکيز BA وهي 0 ، 25 ، 50 ملجم/لتر، وقد أشارت النتائج إلى أن نقع الجذور الدرنية بالترکيز 100 ملجم/لتر من SA قد أدى إلى زيادة ارتفاع النبات (19.11سم) والمساحة الورقية (97.7سم2) والوزنين الرطب والجاف للنمو الخضري (64.0 و 38.8جم) على التوالي، کما أن رش النباتات بالترکيز 50 ملجم/لتر من BA کان الأکثر تأثيراً في زيادة ارتفاع النبات (20.33سم) والمساحة الورقة (87.2 سم2) والوزنين الرطب والجاف للمجموع الخضري (55.0 و 32.6جم)، أما بالنسبة إلى تأثير منظمي النمو في مواصفات النمو الزهري، فقد تفوق الترکيز 100ملجم/لتر من SA في زيادة عدد الأزهار/نبات (3.3) والتبکير في موعد التزهير (101.4 يوماً) وإطالة فترة التزهير (12.4 يوماً) وکذلک إطالة العمر المزهري (9.9 يوماً)، وأدى رش النباتات بـ 50 ملجم/لتر من BA إلى زيادة عدد الأزهار (3.0 زهرة/نبات) وتبکير التزهير (113.7 يوماً) وإطالة فترة التزهير (12.2 يوماً) وإطالة العمر المزهري (8.4 يوماً)، کما أن نقع الجذور الدرنية في 100 ملجم SA/لتر أدى إلى زيادة معنوية في عدد الجذور الدرنية المتکونة (3.3) وکذلک وزنها الرطب والجاف (15.4 جم و 12.2 جم)، وکان الرش بالبنزيل أدنين (BA) بالترکيز 50 ملجم/لتر الأکثر تأثيراً في زيادة عدد الجذور الدرنية (2.7) ووزنها الرطب والجاف (14.2 جم و 10.9 جم) على التوالي، بعض معاملات التداخل بين منظمي النمو قد أثرت معنوياً في تحسين معظم الصفات المدروسة مقارنة بمعاملة المقارنة.
https://zjar.journals.ekb.eg/article_52293_d28145ba6e974de6f1ef3ccadf9146f9.pdf
2017-05-01
945
953
10.21608/zjar.2017.52293
حامض الساليسلک
البنزيل أدنين
النمو
الإزهار
إنتاج الجذور الدرنية
نبات الراننکيل
نسرين
عبد العزيز
1
قسم البستنة وهندسة الحدائق - کلية الزراعة - جامعة بغداد - العراق
AUTHOR
نوال
علوان
2
قسم البستنة وهندسة الحدائق - کلية الزراعة - جامعة بغداد - العراق
AUTHOR
صادق
صادق
sadiqms1982@yahoo.com
3
قسم البستنة وهندسة الحدائق - کلية الزراعة - جامعة بغداد - العراق
LEAD_AUTHOR
ORIGINAL_ARTICLE
GROWTH, YIELD COMPONENTS AND COMPETITIVE INDICES OF FENNEL AND FENUGREEK AS INFLUENCED BY INTERCROPPING SYSTEM AND PHOSPHORUS FERTILIZER RATE
The present study was conducted at the Experimental Farm, Faculty of Agriculture (Ghazala Farm), Zagazig University, Egypt during the two seasons of 2012/2013 and 2013/2014. The effect of intercropping systems of fennel and fenugreek at ratios of 1:1, 1:2, 1:3 and 2:1 on alternative rows in comparison with sole cropped of each species and different phosphorus fertilization rates (0.0, 32 and 48 P2O5 kg/faddan) and their combination treatments on growth, yield components, oil production as well as some competitive indices of both tested crops. Application of phosphorus at 48 kg P2O5/faddan caused significant increase in all parameters of fennel and fenugreek over the other rates under study. Intercropping system 1:3 (fennel: fenugreek), in most cases, significantly increased the recorded growth parameters, yield components, fixed oil content of fenugreek and volatile oil yield per fennel plant as well as competitive indices of the two components in the two seasons, whereas all intercropping systems significantly decreased seed, fruit and oil yield per faddan compared to sole crop (control). In addition, from studying competitive indices, it was clear that, the high land equivalent ratio (1.137 and 1.156), area time equivalent ratio (1.013 and 1.023), land utilization efficiency (107.53% and 108.72%) and relative crowding coefficient (2.143 and 2.917) values were achieved by the combination treatment between intercropping system of one row of fennel alternating with three rows of fenugreek combined with phosphorus at a rate of 32 P2O5 kg/faddan during the first and second seasons, respectively. Generally, it could be gained from sowing one faddan, by using the intercropping pattern of 1:3 combined with phosphorus fertilization at 32 kg P2O5/faddan , the same yield which would required about 1.137 or 1.156 faddan of each crop cultivated alone. Also this treatment is economic by using small area.
https://zjar.journals.ekb.eg/article_52294_81c33f732ed2283f24c8621275dd6c86.pdf
2017-05-01
955
968
10.21608/zjar.2017.52294
Fennel
fenugreek
intercropping system
phosphorus rate
competitive indices
Hesham
Abd-Elghany
1
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
Meawad
2
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Abdelkader
maabdelkader@zu.edu.eg
3
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
THE ROLE OF SLMYB GENE IN TOMATO FRUIT DEVELOPMENT
The transcription factors regulate the levels of RNA and protein through various processes. Fruit set and fruit development are key process in the life cycle of plants. Fruits provide a suitable environment for the development of seeds and often contribute in the efficient dispersal of mature seeds and also have a high economic impact on the agricultural point of view. The present study aims to characterize the function of SlMYB (Solanum lycopersicum MYB) as a candidate gene involved in fruit set process.To achieve that, various methods and techniques were used in this study like in silico analysis, cytolocalization analysis, qPCR , in situ hybridization and plant transformation. Results from in silico analysis showed that the deduced protein has 195 amino acids with a conserved MYB DNA-binding domain composed of two conserved repeat (R2R3) characteristic of plant transcription factors. Cytolocalization analysis showed that SlMYB protein was localized in the nucleus and cytoplasm. qPCR results showed that SlMYB gene is expressed only in the reproductive tissues, where the highest level of expression occurs in pollinated flowers. qPCR and in situ hybridization results showed that the transcript of SlMYB gene was mainly found in the stamens and ovaries, suggesting that SlMYB may be involved in pollination process and ovary development. To clarify the role of SlMYB gene, gain of function experiment were done by the production of transgenic plants contain the gene of interest overexpressed, characterization of the third generation of transgenic plants showed that the overexpression of the SlMYB gene led to the production of fruit with a large number of seeds. Conversely, silencing of SlMYB gene was done by using virus-induced gene silencing (VIGS) methodology and the silencing led to the reduction of fruit set percentage 13.4%:35.1% in silenced plants and 61.25% in control plants and the production of low number of fruits with very low number of seeds compared to the control plants. To confirm the result of silencing, RNAi methodology was used and the results also showed that the silencing of SlMYB gene led to the reduction of pollen grain fertility and ovary development consequently leading to prevention of fruit set and fruit development. It has been concluded that this gene may involve in flower development and seed formation.
https://zjar.journals.ekb.eg/article_52295_80bc9680cc44f7e45bb3ca76c36f9af8.pdf
2017-05-01
969
988
10.21608/zjar.2017.52295
Fruit development
Tomato
MYB genes
Abdallah
Hassanin
dr.abdallah4@gmail.com
1
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
S.
Soliman
2
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
T.
Ismail
3
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Amin
4
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
DETECTION OF GENETIC DIVERSITY IN DIFFERENT SOYBEAN (Glycine max L.) CULTIVARS USING SEED STORAGE PROTEIN PROFILES AND RAPD-PCR ANALYSIS
Protein electrophoretic banding patterns of SDS-PAGE and RAPD-PCR analyses were performed to establish molecular diversity pattern for five soybean cultivars (Crawford, Giza 22, Giza 21, Giza 35 and Giza 111) and to elucidate their genetic relationships. The results of protein banding pattern showed a low level of polymorphism, so cannot be used for complete discrimination among the five cultivars under study. However, the results of protein profiles could be considered as indicators for general protein model pattern for the studied soybean cultivars. On the other hand, RAPD-PCR profiles revealed high levels of polymorphism among the five cultivars. Four 10-mer arbitrary primers successfully generated reproducible polymorphic products. Both number and size of the amplified products varied considerably with different primers and a sum of 22 polymorphic and 9 monomorphic bands were generated in all cultivars that used. A total of 8 unique bands were also identified. Two of the primers were more successful in cultivar's identification since they produced unique bands that are characteristics of each cultivar under study. The combination of all polymorphic bands generated by the four primers, were enough to discriminate between the examined soybean cultivars. Various combinations of the three RAPD decamer oligonucleotides had been used in the single-primer to increase the potential of the PCR reaction. To elucidate the genetic relationship, a dendrogram was constructed using both SDS-PAGE and RAPD profiles. The resulting dendrogram revealed three main genetic clusters; the first cluster include Giza22, Crawford and Giza35, while the second cluster, comprised the cultivar Giza21, and the third cluster comprised the cultivar Giza111. The first group has been subdivided into two subgroups; the first subgroup comprised one cultivar (Giza35) whereas the second subgroup included the two cultivars Giza22 and Crawford.
https://zjar.journals.ekb.eg/article_52296_07175e80a442d146a3658726e0fe7a2b.pdf
2017-05-01
989
1001
10.21608/zjar.2017.52296
Soybean
Glycine max L
SDS-PAGE
RAPD-PCR
Mohamed
Adbel Hamid
mohamedabdelsalam@yahoo.com
1
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
A.
Mandour
2
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
T.
Ismail
3
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
Al-Zohairy
4
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
ESTIMATION OF HEAT SHOCK PROTEIN 70 (Hsp 70) GENE EXPRESSION IN NILE TILAPIA (Oreochromis niloticus) USING QUANTITATIVE REAL-TIME PCR
Heat shock protein 70 (Hsp70) is one of family of proteins expressed in response to a wide range of biotic and abiotic stress conditions. Quantitative real-time PCR (qRT-PCR) has been used to study the expression profiles of heat shock protein (Hsp70) gene in Nile tilapia, Oreochromis niloticus. Young fish (30 g) were exposed to different degrees of heat (10, 15, 35, 39) and control (28°C) for 2 and 4 hr., followed by qRT-PCR of Hsp70 mRNA, using Beta actin (ß-Actin) as a reference gene and flourogenic dyes. Expression of Hsp70 gene was different among fish tissues (muscles, gills and liver). In all treatments the expression level detected in male were more than female fish. The highest expression organs after 2 hr., was muscles in both fish sex but after 4 hr., liver recorded the highest expression value at cold shock where muscles recorded the highest expression at heat shock treatments in both fish sex.
https://zjar.journals.ekb.eg/article_52300_bc2d25bc56c055d977d5afc9ce574a88.pdf
2017-05-01
1003
1015
10.21608/zjar.2017.52300
Nile tilapia
Oreochromis niloticus
Heat shock proteins
HSP70
Real- time PCR
Ahmed
El-Sappah
ahmed_elsappah2006@yahoo.com
1
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
A.
Shawky
2
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Mahassen
Sayed-Ahmad
3
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Youssef
4
Genet. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF DIETARY MANNAN OLIGOSACCHARIDE AND LIGNIN ON POPULATION AND CHARACTERISTICS OF PROBIOTIC BACTERIA ISOLATED FROM JAPANES QUAILS
The role of gut bacteria in animal health has became increasingly important, especially, with limitations use of antibiotics in animal feed due to consumer pressure and legislation. This study showed the relationships between gut bacteria and bird performance as a result of affecting by dietary supplementation of prebiotic such as (mannan oligosaccharide and lignin). A lower count of total aerobic bacteria was shown in mannan and lignin groups comparing with control during all experimental periods. Fortunately, count of the probiotic bacteria (Bifidobacterium spp. and Lactobacillus spp.) increased significantly (P ≤ 0.01) in lignin and mannan groups compared to the control group at all three periods age, while the most increases were at 9 weeks. Determination of the susceptibility of isolated probiotics to antibiotics exhibited that the most effective antibiotic against the tested bacteria was ciprofloxacin (CIP), which reached up to 32 mm of inhibition zone, followed by vancomycin (VA) reaching up to 22 mm and finally tetracyclin (TE) which reached up to 20 mm. The antibacterial activity of the crude supernatant fluids obtained from lactic acid bacteria (LAB) culutures was generally greater against the Gram positive than the Gram negative tested bacteria. Sequencing of the 16S rRNA gene technique was considered to be a rapid and powerful method for identifying the probiotic isolates of Bifidobacterium spp. and Lactobacillus spp. to the species and at sub species level as Bifidobacterium longum subsp. infantis, Bifidobacterium animalis subsp. lactis and Lactobacillus acidophilus.
https://zjar.journals.ekb.eg/article_52301_24a78b6adfc3ea2c2b0910afd2604626.pdf
2017-05-01
1017
1028
10.21608/zjar.2017.52301
Bifidobacterium spp
antibiotics
Antimicrobial
probiotic
prebiotic
Japanese quail
Mai
Ahmady
bonyahmady@yahoo.com
1
Plant Res. Dept. Nuclear Res. Cent., Atomic Ener. Authority, Egypt
LEAD_AUTHOR
Nahed
El-Wafai
2
Agric. Microbiol. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Mohamed
Hegazy
3
Agric. Microbiol. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Sahar
Ouda
4
Plant Res. Dept. Nuclear Res. Cent., Atomic Ener. Authority, Egypt
AUTHOR
ORIGINAL_ARTICLE
ADSORPTION OF URANIUM FROM AQUEOUS SOLUTION BY DRY AND CHEMICAL MODIFIED WATER HYACINTH ROOTS
Adsorption of uranium using dried roots of water hyacinth plant (E. crassipesas) has been investigated. The plants were collected from Ismailia canal, Sharkia Governorate, Egypt. And pretreated with different activating agents as organic or metallic acids, using fixed concentration from each activator (5%). The adsorption were examined as a function of initial uranium concentration, contact time, pH, temperature, volume, dose of roots and size. Citric acid has advantage and the optimum condition was 94% about pH of 5.
https://zjar.journals.ekb.eg/article_52302_7593bfbf90400ff66e07d38458512586.pdf
2017-05-01
1029
1038
10.21608/zjar.2017.52302
Uranium
Water hyacinth
Adsorption
solvent extraction
Citric acid
Yaser
Abd El-Mageed
yasser.mmu76@yahoo.com
1
Nuclear Materials Authority, Maadi, Cairo, Egypt
LEAD_AUTHOR
I.
Mohamed
2
Soil Sci. Dep., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
N.
Atiaa
3
Soil Sci. Dep., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
Daher
4
Nuclear Materials Authority, Maadi, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF PRE-SOWING SEED TREATMENT IN PHYTO-MELIORATION OF SALT-AFFECTED SOILS
A field experiment was carried out at Tag Al EZZ Agricultural Research Station, ARC, Egypt (31°36'N/30°57'E) in two seasons of 2014-2015. This work aimed at assessing the effect of cultivating seeds treated with aerated solution of Salicylic Acid (SA) 1.00, 1.50, 2.00, 2.50 and 3.00 mM of 3 plants: kenaf (Hibiscus canabienus), sunflower (Helianthus annuus) and canola (Brassica napus) in phyto-remediating (bioreclamination) of a saline soil. Growth of plants (its seeds were pre-sowing treated with salicylic acid) was higher than that of plants its seeds were not treated with the acid. The treatment induced tolerance to salt stress leading to promoting protective reactions to the photosynthetic pigments, maintained the membranes integrity and osmotic adjustment This increased growth led to removal of greater amounts of salts from the soil. Salinity as well as sodicity of the soil where treated plants were grown was lower than in soils where non-treated plants were grown. The 3.00 mM treatment was the most effective.
https://zjar.journals.ekb.eg/article_52303_cba30a709de240e510cb69d9e054d174.pdf
2017-05-01
1039
1046
10.21608/zjar.2017.52303
Pre-sowing
Kenaf
Sunflower
canola
salicylic acid and phyto-remediating
Magdy
Niazy
amagdy16@gmail.com
1
Soils, Water and Environ. Res. Inst., ARC, Giza, Egypt
LEAD_AUTHOR
M.
Abd El-Satar
2
Oil Crops Res. Dept., Field Crops Res. Inst., ARC, Egypt
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF USING GUAVA AND GRAPE SEEDS EXTRACTS ON OXIDATIVE STABILITY OF BLENDED SUNFLOWER AND SOYBEAN OILS
This study was performed to evaluate the effect of guava seeds (GVSE) and grape seeds (GRSE) extracts compared to butylated hydroxytoluene (BHT) on the antioxidant activity of blended sunflower and soybean oils (1:1 V/V), defined as BO at 70oC for 72 hrs. GVSE and GRSE were separately added to the blended oils at two different concentrations (200 and 500 ppm). Synthetic antioxidant BHT at ratio of 200 ppm was used as positive control with the blends oils. The oxidative assessments were Peroxide value, P- anisidine value, total oxidation value and thiobarbituric acid reactive substances were used for measuring the oxidative stability of these blended oils. Results showed that the highest level of GVSE and GRSE gave the best protection against primary and secondary oxidation of blended oil samples. The high efficiency of these extracts was observed as follows: 500 ppm GRSE ˃ 500 ppm GVSE ˃ 200 ppm BHT ˃ 200 ppm GRSE ˃ 200 ppm GVSE ˃ control. Therefore, some of food processing wastes could be used as natural antioxidant in edible oils manufacturing.
https://zjar.journals.ekb.eg/article_52304_ba8fc9596167191eccc4717aa243a162.pdf
2017-05-01
1047
1060
10.21608/zjar.2017.52304
Guava seeds
grape seeds
blended oils
sunflower oil
soybean oil
oxidative stability
Talaat
El-Kady
talaat_nni5@yahoo.com
1
Nat. Nut. Inst., Minist. Health, Cairo, Egypt
LEAD_AUTHOR
A.
Toliba
2
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Abd El-Rahman
3
Nat. Nut. Inst., Minist. Health, Cairo, Egypt
AUTHOR
S.
Abo El-Maati
4
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
ANTIMICROBIAL AND ANTIOXIDANT ACTIVITIES OF SOME PLANT EXTRACTS
In this study, three plants; rosemary, ginger, and peppermint, were extracted using three solvents; ethanol, methanol and water. A comparison was held between different extracts concerning: chemical composition, efficiency of the extraction method, yield, antimicrobial and antioxidant potentials. Phenolic compounds profile were studied via High Performance Liquid Chromatography (HPLC).Antimicrobial activity of the extracts was examined against: Escherichia coli, Staphylococcus epidermidis, Staphylococcus aureus, Staphylococcus pyogenes, Candida albicans, Klebseilla pneumonia, Bacillus subtilis and Streptococcus. sppusing agar well diffusion method. The inhibition zones diameter (IZD) were ranged between 11- 37 mm. The results showed that ethanol extraction had the highest yield of rosemary and peppermint (19.17 and 17.19%, respectively). While; the lowest was obtained from ginger methanol extracts (12.78%). Rosemary water extract had the highest total phenolic contents (271.66 ± 12.2 µg/mg, while ethanol extract of ginger and peppermint gave 201.31 ± 8.99 and 165 ± 4.74 mg gallic acid equivalent (GAE/g) respectively. Concerning the total flavonoid contents; rosemary methanol extract gained the highest content (123.9 ± 2.99 µg/mg), while in ethanol extracts of ginger and peppermint showed the best results (44.06 ± 0.55, 89.54 ± 2.63 µg/mg, respectively). Antioxidant activity was used as a parameter to evaluate the protective antioxidant ability of examined herbs represented in IC50 (inhibition concentration). Results showed that in rosemary water extract 24.5µg/ml, while in ginger and peppermint ethanol extracts was 38.98 and 80 µg/ml, respectively. Depending on results stated above, it can be recommend using water for rosemary extraction and ethanol 70% for ginger and peppermint extractions for the best antioxidant and antimicrobial impact.
https://zjar.journals.ekb.eg/article_52305_ef819b0496d8381fc41537dc3f97e746.pdf
2017-05-01
1061
1071
10.21608/zjar.2017.52305
Natural antioxidants
Plant extracts
Antioxidant activity
Phenolic compounds
Flavonoids
antimicrobial activity
Mahdy
El-Naggar
mahdy_nasr89@yahoo.com
1
Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt
LEAD_AUTHOR
G.
Abdulla
2
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Gehan
El-Shourbagy
3
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
El-Badawi
4
Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt
AUTHOR
S.
El Sohaimy
5
Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt
AUTHOR
ORIGINAL_ARTICLE
PHYSICOCHEMICAL CHARACTERISTICS OF BISCUITS FORTIFIED WITH CACTUS PEAR PEEL POWDER
The current study aimed to utilize the cactus pear peel powder in wheat biscuits fortification. Physicochemical properties and phenolic compounds of cactus pear peel powder were also determined. Wheat flour was fortified with 2.5%, 5%, 7.5% and 10% cactus pear peel powder. Likewise the effect of fortification with 7.5% cactus pear peel powder on physical and sensory properties of wheat flour biscuits was studied. The physicochemical properties indicated that the powder was characterized by 1.14 g/ml bulk density, 3.50 ml/g swelling capacity, 3.70 ml/g water holding capacity, 2.49 ml/g oil holding capacity, 11.2% moisture, 9.90% ash, 3.50% protein, 1.22% fat, 5.70 pH, 38% dietary fiber, 54.30% antioxidant activity and 2243.84 ppm total phenolic compounds. Potassium (K) represented the highest mineral concentration (22.07 g/kg) followed by calcium (16.66 g/kg) and magnesium (3.71 g/kg). The major phenolic components were pyrogallol, catechol and catechein representing 1088.95 ppm, 201.96 ppm and 149.99 ppm, respectively. Sensory evaluation showed that fortification with 7.5% cactus pear peel had the best sensory characteristics meanwhile biscuits fortified with 10% cactus pear peel powder was not acceptable. Results showed that the fortification of biscuits with 7.5% cactus pear peel powder increased its content of dietary fiber and antioxidant activity.
https://zjar.journals.ekb.eg/article_52306_2008ce363fde416ac9fbf383956f2738.pdf
2017-05-01
1073
1084
10.21608/zjar.2017.52306
Cactus pear peel powder
physicochemical properties
fortification biscuits
Sensory evaluation
Mohamed
El-Shahat
mohamed.shehta413@gmail.com
1
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
M.
Ragab
2
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
H.
Siliha
3
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Rabie
4
Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
EVALUATION OF TWO PHENOLIPIDS (QUERCETIN-ENRICHED LECITHIN) AND (RUTIN -ENRICHED LECITHIN) IN VITRO AND In vivo
The present study was designed to investigate the lecithin and mixtures of quercetin and lecithin (1:1, W/W) and mixtures of rutin and lecithin (1:1, W/W) in the protection of triolein models stored under oxidative conditions for 15 days in the dark at 60°C. The progress of oxidation was tested by measuring the peroxide value (PV). The factors influencing the oxidative stability (OS) of different triolein models were also discussed. Inverse relationships were noticed between peroxide values and oxidative stabilities at termination of the storage. Also a biological study was carried out to evaluate the hypolipidemic effects of all previously studied additives. Oral administration of lecithin and mixtures of quercetin and lecithin and mixtures of rutin and lecithin to hyperlipidemic rats induced a highly decreasing effect on the levels of serum total cholesterol (TC), triacylglycerols (TG), low-density lipoprotein cholesterol (LDL) and increasing the levels of serum high-density lipoprotein-cholesterol (HDL), It is suggest that, phenolipids (quercetin-enriched lecithin) and (rutin -enriched lecithin) has a significant health benefits and can be explored as a potentially promising food additive for the prevention of hyperlipidemia diseases.
https://zjar.journals.ekb.eg/article_52307_772ee0cda9f15303b015ef11b59c4b7d.pdf
2017-05-01
1085
1095
10.21608/zjar.2017.52307
Lecithin
Quercetin
Rutin
lipid oxidation
oxidative stability
phenolipids
Natural antioxidants
hypercolesterolemic
Lipid profile
Nahla
Sedeek
kanza_sindbad2010@yahoo.com
1
Agric. Bioch. Dept., Fac. Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
S.
El-Saadany
2
Agric. Bioch. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
A.
Awad
3
Agric. Bioch. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
M.
Amer
4
Agric. Bioch. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
BIOLOGICAL STUDIES ON THE CITRUS MEALYBUG, Planococcus citri (RISSO) (HEMIPTERA: PSEUDOCOCCIDAE) UNDER LABORATORY CONDITIONS
Biological studies were carried out in the laboratory of Scale Insects and Mealybugs Department, Plant Protection Research Institute, Sharkia Branch, Egypt during the period extended from 2010–2016 years on the citrus mealybug, Planococcus citri (Risso) (Hemiptera: Pseudococcidae) to study the effects of different host plants and temperatures on some biological aspects of the pest to use these useful information for mass rearing and designing a comprehensive pest management program and prediction models for the citrus mealybug. The accumulated degrees days (ADD) for male and female stages were also calculated. The obtained results obviously showed that there were significant effects on developmental periods, adult longevity, life cycle and generation period of P. citri when reared on pumpkin fruits compared with those reared on potato sprouts. The periods of citrus mealybug stages were significantly reduced gradually by increasing of rearing degree of the tested temperatures i.e. 20, 25 and 30˚C. The mathematical method showed that the accumulated degree days which required for completing one generation for females was 418.11 ADD unit.
https://zjar.journals.ekb.eg/article_52308_7f5f73df41a0c081a7a735f947cb2f8f.pdf
2017-05-01
1097
1106
10.21608/zjar.2017.52308
Citrus mealybug
Planococcus citri
biological aspects
hosts
temperatures
Hala
Mahmoud
scalonabil@yahoo.com
1
Plant Prot. Res. Inst., ARC, Dokki, Giza, Egypt
LEAD_AUTHOR
H.
Nabil
2
Plant Prot. Res. Inst., ARC, Dokki, Giza, Egypt
AUTHOR
A.
Shahein
3
Plant Prot. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
Z.
Mohamed
4
Plant Prot. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
RECYCLING OF AGRICULTURAL RESIDUES FOR PRODUCING HIGH QUALITY PRESSED WOOD
The present research was carried out to study the suitability of using agricultural residues as a raw material for producing pressed wood. Two types of agricultural residues (Rice straw and wood sawdust) were used. Experiments were conducted to study some different operating parameters (pressing temperature, sample thickness and resin ratio) affecting the pressing process. The produced particleboards were evaluated in terms of static bending strength (modulus of rupture and modulus of elasticity) and thickness swelling. Final quality of the produced particleboards was compared with the particleboard standard quality guidelines. The experimental results reveal that modulus of rupture (28.1, 39.8 MPa), modulus of elasticity (4530, 5030.2 MPa) and thickness swelling (6.3 and 3.9%) of the produced pressed wood from rice straw and wood sawdust, respectively were in the suitable region under conditions of 180°C pressing temperature and 8% resin ratio with acceptable sample thickness of 12 mm. Under these conditions, final quality of the produced particleboards was found to be very close with the particleboard standard quality guidelines.
https://zjar.journals.ekb.eg/article_52309_be0638c4d72577032f84cadda7ec88dd.pdf
2017-05-01
1107
1118
10.21608/zjar.2017.52309
Pressing temperature
agricultural residues
Resin
modulus of rupture
Reham,
Attia
reham8898@yahoo.com
1
Agric. Eng., Fac. of Agric., Zagazig Univ., Egypt
LEAD_AUTHOR
M.
Morad
2
Agric. Eng., Fac. of Agric., Zagazig Univ., Egypt
AUTHOR
Mona
Abd El-Aziz
3
Agric. Eng., Fac. of Agric., Zagazig Univ., Egypt
AUTHOR
Hend
El-Maghawry
4
Agric. Eng., Fac. of Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
CONSTRUCTION AND PERFORMANCE EVALUATION OF A HYDROPONIC UNIT FOR BARLEY GREEN FOODER PRODUCTION
The objectives of the present study were to construct and evaluate the performance of a hydroponic unit for intensive barley green fodder production. The constructed hydroponic system included lighting unit to provide plants with its lighting requirement, cooling and air conditioning unit to conserve the appropriate microclimate conditions to propagate a healthy plants and aeration and CO2 proportioning unit to enhance the root-zone media with its air balance to achieve the plant stress. The performance of the constructed hydroponic unit was studied under some different technical parameters (growing period, aeration rate, with and without nutrient solution addition and with and without CO2 injection). The performance of the constructed hydroponic unit was evaluated in terms of total yield, yield quality, water use efficiency, energy requirements, operational cost and net profit. The experimental results reveal that total yield (4646.4 kg/period), plant moisture content (92.13%), water use efficiency (156.028 g/l) and net profit (8256 LE/period) were in the optimum region under conditions of 8.0 days growing period, 2 hr./day aeration rate, with both nutrient solution addition and CO2 injection. While the protein percentage (18.29%) was optimum under conditions of 5.0 days growing period, 1 hr./day aeration rate, with both nutrient solution addition and CO2 injection. Meanwhile dry matter (21.12%) was optimum under conditions of 5.0 days growing period, 2 hr./day aeration rate, without neither nutrient solution addition nor CO2 injection.
https://zjar.journals.ekb.eg/article_52310_8caaf76828c26f0767c487d604d1b7bc.pdf
2017-05-01
1119
1131
10.21608/zjar.2017.52310
Hydroponic
Barley
Aeration
protein
Yasser
Abd El-Rahman
yassersalah555@yahoo.com
1
Agric. Eng. Dept., Technol. and Dev. Fac., Zagazig Univ., Egypt
LEAD_AUTHOR
M.
Morad
2
Agric. Eng. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
E.
El- Hanafy
3
Agric. Eng. Dept., Technol. and Dev. Fac., Zagazig Univ., Egypt
AUTHOR
Mona
Abdel-Aziz
4
Agric. Eng. Dept., Fac. Agric., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
دراســـة اقتصادية للمزارع السمکية بمنطقة العباسة
استهدف البحث دراسة التکاليف والمؤشرات الاقتصادية لإنتاج الأسماک في منطقة العباسة محافظة الشرقية من خلال: تحليل تکاليف إنتاج الأسماک لمزارع عينة الدراسة وعددها 9 مزارع بمنطقة العباسة (محافظة الشرقية) للموسم الإنتاجي 2016م، واعتمدتالدراسة في تحليل البيانات وعرض ما تتوصل إليه من نتائج على الأسلوبين الوصفي والکمي شاملاً النسبة المئوية، ودالة تکاليف متغيرة تکعيبية ومشتقاتها ثم مؤشرات الکفاءة الإقتصادية للإستزراع السمکي متضمنة (الإيراد الکلي، التکاليف الکلية، صافي العائد، الهامش الإجمالي، ربحية الجنيه وغيرها من مؤشرات الکفاءة الأخرى)، وکان من أهم نتائج الدراسة أن متوسط إنتاج الفدان حوالي 3.57 طن، کما بلغ متوسط سعر بيع الطن حوالي 12544.27 جنيه، وبلغ متوسط التکاليف المتغيرة حوالي 22567.98جنيه/ فدان، کما بلغ متوسط التکاليف الثابتة حوالي 3069.94 جنيه/فدان، وبلغ متوسط التکاليف الکلية حوالي 25637.92 جنيه/فدان، کما بلغ متوسط التکاليف الکلية للطن حوالي 7181.47 جنيه ، وبلغ متوسط الإيراد الکلي حوالي 44783.04 جنيه/الفدان، وبلغ متوسط صافي العائد للفدان في منطقة الدراسة حوالي 19145.12 جنيه، کما بلغ متوسط صافي العائد للطن حوالي 5362.78 جنيه، وبلغ متوسط هامش المنتج حوالي 42.75%، وبلغ متوسط عائد الجنيه حوالي 1.75جنيه، أما بالنسبة لمتوسط ربحية الجنيه فبلغ حوالي 0.75.
https://zjar.journals.ekb.eg/article_52311_ce767dbd38f1df679b27d57b93e5cca0.pdf
2017-05-01
1133
1139
10.21608/zjar.2017.52311
الإستزراع السمکي
مؤشرات الکفاءة الاقتصادية
دالة تکاليف تکعيبية
هامش المنتج
ربحية الجنيه
مروة
أحمد
marwa_elrys@yahoo.com
1
قسم الاقتصاد الزراعي - کلية الزراعة - جامعة الزقازيق - مصر
LEAD_AUTHOR
شوقي
إمام
2
قسم الاقتصاد الزراعي - کلية الزراعة - جامعة الزقازيق - مصر
AUTHOR
محمد
مصيلحي
3
قسم الاقتصاد الزراعي - کلية الزراعة - جامعة الزقازيق - مصر
AUTHOR
ســهام
قنديـــــل
4
قسم الاقتصاد الزراعي - کلية الزراعة - جامعة الزقازيق - مصر
AUTHOR
ORIGINAL_ARTICLE
القدرة التنافسية للصادرات المصرية من البصل کامل النضج بأهم التکتلات الاقتصادية
تعتبر تنمية الصادرات الزراعية من الأهداف الرئيسية للسياسات الاقتصادية الزراعية المصرية، ويعد محصول البصل من المحاصيل التصديرية الهامة والرئيسية في مصر حيث يأتي في مقدمة صادرات حاصلات الخضر، إلا أنه يواجهه منافسة شديدة في أسواقه المختلفة مما يؤدي الي تذبذب حجم الصادرات السنوية منه مما يؤثر علي حجم ايرادات النقد الأجنبي، ولما کانت القدرة التنافسية هي أحد أهم العناصر المحددة لحجم الصادرات لذا استهدف البحث دراسة القدرة التنافسية ونمط التوزيع الجغرافي لصادرات البصل المصري کامل النضج في أهم التکتلات الاقتصادية وأثر تلک الإتفاقيات المتعلقة بتلک التکتلات علي صادرات البصل المصري کامل النضج، وإعتمد البحث على أساليب التحليل الکمية والوصفية لتقدير وشرح الظواهر المتعلقة بقياس القدرة التنافسية لصادرات البصل المصري في أهم التکتلات الاقتصادية من خلال الاستناد الي دوال الانحدار البسيط والمتعدد والمتغيرات الصورية بالاضافة الي مؤشرات القدرة التنافسية وکانت أهم النتائج التي توصل لها البحث ارتفاع کمية وقيمة وسعر تصدير طن البصل المصري کامل النضج لمنطقة التجارة الحرة العربية الکبري بمعدل تغير سنوي بلغ نحو 6.39%، 12.39%، 6.54% من متوسطها، کما تبين ارتفاع کمية وقيمة وسعر تصدير طن البصل المصري کامل النضج للإتحاد الأوروبي بمعدل تغير سنوي بلغ نحو 6.96%، 11.61%، 5.24% من متوسطها، کما تبين أن هناک أثر إيجابي لاتفاقية منطقة التجارة الحرة العربية علي کل من کمية وقيمة وسعر تصدير البصل المصري کامل النضج اليها، بينما تبين أن لاتفاقية الإتحاد الاوروبي أثراً ايجابياً علي کل من قيمة وسعر تصدير البصل المصري إليها في حين لم يکن لها أثراً علي کمية صادرات البصل المصري اليها، واتضح بدراسة السوق السعودي کأحد أهم أسواق اتفاقية التجارة الحرة العربية الکبري انخفاض مؤشري التنافسية السعرية وقوة التصدير لمحصول البصل المصري بينما حقق ت مؤشرات التنافسية الکمية ومعدل إختراق السوق والنصيب السوقي ارتفاعاً خلال فترة إقامة منطقة التجارة الحرة العربية الکبري مقارنة بالفترات الأخري، کما تبين بدراسة السوق الهولندي کأحد أهم أسواق الإتحاد الأوروبي انخفاض مؤشري التنافسية السعرية والتنافسية الکمية لمحصول البصل المصري بينما حققت مؤشرات معدل إختراق السوق والنصيب السوقي وقوة التصدير ارتفاعاً خلال الفترة الانتقالية للاتفاقية، کما أوضحت النتائج أن أهم العوامل المحددة للطلب علي البصل المصري کامل النضج بالسوق السعودي هي سعر تصدير البصل المصري وعدد سکان السعودية وکمية واردات السعودية للبصل من العالم، کما تبين أن أهم العوامل المحددة بالسوق الهولندي للبصل المصري تمثلت في سعر تصدير البصل الفرنسي وعدد سکان هولندا، وفي ضؤ ما أسفر عنه البحث من نتائج فإنه يمکن التوصية بالاستمرار في دراسة الاسواق الاستيرادية للتکتلات الاقتصادية وذلک لتحقيق أکبر کفاءة تسويقية ممکنة مع العمل علي اتباع سياسة سعرية تصديرية تکون کفيلة برفع مستوي تنافسية البصل المصري مع الدول الاخري.
https://zjar.journals.ekb.eg/article_52312_2e01b9bb43350c27ceb60e13840e7c68.pdf
2017-05-01
1141
1156
10.21608/zjar.2017.52312
تنافسية الصادرات
البصل
التکتلات الإقتصادية
عبد الباقى
الشايب
abdelbakymousa@yahoo.com
1
قسم الاقتصاد الزراعي – کلية الزراعة – جامعة طنطا – مصر
LEAD_AUTHOR
رانيا
أحمد
2
قسم الاقتصاد الزراعي – کلية الزراعة – جامعة طنطا – مصر
AUTHOR
أميرة
حمزة
amira.hamza@agr.tanta.edu.eg
3
قسم الاقتصاد الزراعي – کلية الزراعة – جامعة طنطا – مصر
AUTHOR
ORIGINAL_ARTICLE
دراسة تقييمية لتجربة الزراعة العضوية فى إنتاج محصول القطن من وجهة نظر الزراع (دراسة حالة) بقرية المرابعين مرکز کفر سعد بمحافظة دمياط
إستهدف هذا البحث التعرف على بعض الخصائص العامة للزراع المبحوثين,وتحديد الأهمية النسبية لمصادر المعلومات الزراعية فى مجال الزراعة العضوية لمحصول القطن, والتعرف على خصائص فکرة الزراعة العضوية لمحصول القطن من وجهة نظر الزراع المبحوثين من حيث:(مدى تعقيد فکرة الزراعة العضوية للمحصول, مدى وضوح مشاهدة فکرة الزراعة العضوية للمحصول, إمکانية تجربة فکرة الزراعة العضوية للمحصول, ترابط ممارسات فکرة الزراعة العضوية للمحصول, التوافق العام لفکرة الزراعة العضوية للمحصول), التعرف على نتائج تطبيق فکرة الزراعة العضوية لمحصول القطن من وجهة نظر الزراع المبحوثين من حيث: (کمية الإنتاج, الدخل المزرعى, جودة المحصول, مقاومة الأمراض والحشائش, خصوبة التربة, التکاليف الإنتاجية, تسويق المحصول, سعر المحصول), تحديد إتجاه الزراع المبحوثين نحو الزراعة العضوية لمحصول القطن, التعرف على الخدمات التى يقدمها الإرشاد الزراعى للزراع المبحوثين فى مجال الزراعة العضوية لمحصول القطن وتحديد الأهمية النسبية لها, التعرف على الأنشطة الإرشادية التى يقوم بها المرشد الزراعى فى مجال الزراعة العضوية لمحصول القطن وتحديد الأهمية النسبية لها, تحديد المشکلات التى تواجه الزراع المبحوثين عند تطبيقهم لأسلوب الزراعة العضوية لمحصول القطن وتحديد الأهمية النسبية لها, وأخيرا التعرف على مقترحات الزراع المبحوثين للتغلب على المشکلات التى تواجههم عند تطبيق أسلوب الزراعة العضوية لمحصول القطن.وقد أجرى هذا البحث بمحافظة دمياط على عينة عشوائية منتظمة تم إختيارها من بين زراع القطن العضوى بقرية المرابعين مرکز کفر سعد والبالغ عددهم 290 مبحوثا، وقد تم إستخدام معادلة کريجسى ومورجان لتحديد حجم العينة والتى بلغت قوامها 164 مبحوثا، واستخدم الاستبيان بالمقابلة الشخصية کأداة لجمع بيانات البحث خلال شهر سبتمبر 2016، حيث تم إجراء الاختبار المبدئي على الإستمارة مما أتاح الفرصة لتعديلها ووضعها فى صورتها النهائية، وقد تم تحليل البيانات باستخدام التکرارات والنسب المئوية، والمتوسط الحسابى ، ومن أهم نتائج هذا البحث أن: (42.1%) من إجمالى المبحوثين يرون أن خصائص فکرة الزراعة العضوية لمحصول القطن مقبولة إلى حد ما, وأن (62.2%) من إجمالى المبحوثين إتجاهاتهم إيجابية نحو الزراعة العضوية, وأظهرت النتائج أيضا أن (76.8%) من إجمالى المبحوثين يرون أن الإرشاد الزراعى يقوم بتقديم الخدمات فى مجال الزراعة العضوية لمحصول القطن بدرجة متوسطة, کما أن (79.9%) من إجمالى المبحوثين يرون أن المرشد الزراعى يقوم بتقديم الأنشطة الإرشادية فى هذا المجال بدرجة منخفضة. أوضحت النتائج أيضا أن أهم المشکلات التى تواجه الزراع المبحوثين عند تطبيقهم لأسلوب الزراعة العضوية هى المتعلقة بالمشکلات الإنتاجية والاقتصادية وکان أهمها : عدم دعم الحکومة للمزارعين العضويين, وارتفاع تکاليف المکافحة الحيوية وانخفاض الإنتاج وقلة العائد, وارتفاع تکلفة الإنتاج بالزراعة العضوية، وکانت أهم المقترحات لحل المشکلات هى: العمل على توفير کوادر إرشادية فنية متخصصة في مجال الزراعة العضوية من قبل وزارة الزراعة، أهمية توافر جهات متخصصة فى مجال الزراعة العضوية يتم الرجوع إليها عند حدوث أى مشکلة فى مجال الزراعة العضوية، توفير کافة مستلزمات الإنتاج الخاصة بالزراعة العضوية فى الأوقات المناسبة، دعم أسعار کافة مستلزمات الإنتاج الخاصة بالزراعة العضوية.
https://zjar.journals.ekb.eg/article_52313_6e1d5c76cb124c6fcb596cceef6c9d62.pdf
2017-05-01
1157
1179
10.21608/zjar.2017.52313
الزراعة العضوية
القطن العضوى
إتجاهات الزراع
إيمان
سالم
1
معهد بحوث الإرشاد الزراعى والتنمية الريفية- مرکز البحوث الزراعية - مصر
AUTHOR
رانيا
باشا
rania_hamdy66@yahoo.com
2
قسم الاقتصاد الزراعي – کلية الزراعة – جامعة الزقازيق – مصر
LEAD_AUTHOR