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玉米在生产上常出现空秆现象,它对玉米的产量有一定程度的影响,空秆率越高,对玉米的产量影响越大,玉米花期遭遇阴雨连绵天气,某些玉米品种的空秆率高达50%～60%。因此降低空秆率,也是提高玉米产量的一项措施。1形成玉米空秆的主要原因1.1雄穗对雌穗的抑制玉米的雄穗是由顶芽发育而成,生长势强,雄穗分化比雌穗分化早7～10d,而雌穗是由腋芽发育而成,发育较晚,生长势较弱,当外界条件不适合的时候,雄穗
The phenomenon of empty stalk appeared in the production of corn, which had a certain degree of impact on the yield of corn. The higher the empty stalk rate, the greater the impact on the yield of corn, the rainy weather in the flowering season of maize, the empty stalk rate of some corn varieties Up to 50% to 60%. Therefore, reducing the empty stalk rate is also a measure to increase corn production. 1, the main reason for the formation of corn stalks 1.1 males on the ear suppression maize tassel corn is developed from the top bud, strong growth, tassel differentiation than early ear differentiation 7 ~ 10d, and the ear is composed of axillary buds Developed, late development, growth is weak, when the external conditions are not suitable, tassel