Zinc Nutrition Optimization for Improving the Growth, Yield and Grain Quality of Wheat (TriticumAestivum L.)

Abstract

Wheat (TriticumaestivumL.)a member of Poaceae family a major source of nutrients and energy. It occupies a prominent position in the staple foods. It can provide 70% of daily calories and 20% of global protein consumption for each person. Zinc is needed for the synthesis of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), as well as for the stabilization of cell membranes and ribosomes and defense against free radicals.50% of the soil used to grow wheat yields harvests with low levels of bioavailable Zn or crops lacking Zn.According to reports, the fifth most common cause of sickness and mortality in underdeveloped nations is Zn deficiency in humans. To achieve this goal a comprehensive study is designed to optimize the different levels of Zn application for improving growth, yield and grain quality characteristics of wheat on alkaline calcareous soil. Experimental plan was comprised of seven treatments including control (no Zn application), 20, 40, 60, 80, 100 and 120 mg kg¹ Zn. Each treatment was replicated for five times. Zinc sulfateheptahydrate (ZnSO₄.7H₂O) was used as Zn source. Experiment was conducted according to “Complete Randomized Design” (CRD). Plant growth, physiological and yield contributing characteristics were recorded. Plant samples were analyzed for Zn concentration. After harvesting, wheat grains were also be analyzed for different quality parameters such as Zn concentration. Pre-sowing and post-harvest soil analysis was done for Zn concentration and other physic-chemical characteristics.