Effect of irrigation levels and agrochemicals on dry matter partitioning in summer maize (Zea maize L.)

Application of eight irrigations (seedling, 6 leaf, knee-high, before tasseling, 50% tasseling, 50% silking, grain formation and grain filling stages) where no stress was occurred significantly increased dry matter distribution. Data related to dry matter partitioning in stem, leaves and cobs at 25, 50, 75 and at harvest stage of crop. In general, irrespective of the treatments, crop attained maximum leaf dry weight at flowering stage. This decreased progressively up to harvest stage. While, stem dryweightshowed increasing trendup totasseling and silking stage and than declined slightlytowards harvest stage of the crop. Obviously, cobs dry weight increased linearly from flowering up to harvest stage.