GRAIN QUALITY AND PROTEIN YIELD OF THREE BREAD WHEAT CULTIVARS AS AFFECTED BY SOME HUMIC ACID AND COMPOST FERTILIZER TREATMENTS UNDER NEWLY SANDY SOIL CONDITIONS

Document Type : Original Article

Authors

1 Plant Prod. Dept., Ecol. and Dry Agric., Desert Res. Cent., Egypt

2 Agron. Dept., Fac. Agric., Zagazig Univ., Egypt

Abstract

Two field experiments were carried out during 2015/2016 and 2016/2017 winter
seasons at El-Qantara East. Station, Desert Res. Center, North Sinai, Egypt to investigate the effect of
some humic acid and organic compost fertilizer treatments on total carbohydrates, protein contents and
protein yield/fad., of three bread wheat cultivars, grown under newly reclaimed sandy soil. Each
experiment included 48 treatments which are the combinations between three wheat cultivars (Misr-1;
Sakha-94 and Gemmeiza-11), four levels of humic acid (without humic acid; 1, 2 and 3 kg/fad.) and
four levels of compost fertilizer (without compost, 5, 10 and 20 ton/fad.). The results revealed
significant differences among wheat cultivars for protein percentage, protein yield and total
carbohydrate contents in wheat grains. The results also showed that Misr-1 cultivar significantly
surpassed the other two studied cultivars in carbohydrate percentage in both seasons. However, wheat
cultivar Sakha-94 exceeded markedly the other two cultivars in protein percentage and protein yield.
Application of either humic acid or compost fertilizer significantly enhanced protein percentage,
protein yield and total carbohydrate content in wheat grains. The highest protein yield (238 in the 1st
season and 270 kg/fad., in the 2nd one) was produced from Sakha-94 wheat cultivar with application of
20 ton/fad., compost in both seasons under Qantara East Area, North Sinai of Egypt.

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