Combined Effect of Nitrogen and Phosphorus Fertilizer on the Activity of the Nitrate Reductase Enzyme in Different Wheat Cultivars

Some characteristics of nitrogen metabolism were observed in the flag leaf on main branch wheat (Triticum aestivum L. and Triticum durum L.) In current study, nine varieties chosen planted as test crop using split plot design replicate at three times, with nutrient dose sub treatment cultivated different soil phosphorus levels (0, 60, 120 kg/hac) 30, 60 kg/hac). These handled four treatments, where T1 served control, T2 its optimal level, T3 half-nitrogen full-phosphate fertilizer doses. Fertilizer dosages T4 that half studied. Flag blades seen to be engaged NO-3 assimilation. The blade had highest nitrate reductase activity, free amino acid content, soluble protein content among all blades. activity was markedly increased by addition soil. presence substrate-dependent enzyme demonstrated inflag tissue. A coincidental association between buildup reduced plant shown rise response more increase vegetative nitrogen. substantial positive connection discovered (expressed molesN/hac.each season) grain (kg N/hac) maturity because transfer homogeneous across treatments. Additionally, there a strong correlation seasonal yields (kg/hac.). cultivars resistant lodging, maintaining during reproductive period might boost production avoid decrease percentage is usually when are high.