USE OF UNICONAZOLE IN GROWTH REGULATION AND BIOCHEMICAL CHANGES IN MAIZE

The current paper evaluated the incubation time, and doses of Uniconazole (UCZ) applied to maize seeds verify plants’ response at different phenological stages. MSG1001 hybrid were treated with UCZ (0, 50, 100 mg.kg-1 seed) times (IT – 1 min 12 h). In lab experiment, displaced in rolls previously moistened Germitest incubated for a week BOD chamber 25ºC 12-hour photoperiod. greenhouse experiments, sowing was carried out pots sand, supplementary irrigation ten days. field performed 0.5 m spacing between rows densities 75,000 65,000 plants.ha-1. greenhouse, design both experiments entirely randomized double-factor scheme x UCZ). A block triple-factor Population) used experiment. Seed treatment did not promote germination inhibition. concentration mg kg-1 seed IT resulted more significant accumulation root mass seedlings after one BOD. plants V1 stage presented longer shoot lengths treatments that received UCZ. Incubation time influenced length, = h 50 efficient than min. Application effective accumulating chlorophylls B field, changed female flowering number green leaves below ear. population plants.ha-1 productive, contributing hybrid’s yield. or contributed productivity h. grains’ starch content increased application dose seed, percentage modified according density time.