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菜豆的花芽数很多,蔓性种的花序每株能长10～20个,每花序生花4～10朵,但结荚率仅占花芽分化数的4.5％～10.8％,占开花数的20％～35％左右,可见菜豆的增产潜力很大。1 造成菜豆落花落荚的原因1.1 温度。菜豆花芽分化和花粉发芽的适宜温度为20℃～25℃,开花结荚的适温为18℃～25℃,因此花芽分化和花期如遇低温或高温的夏季,都会使花芽
The number of flower buds of bean is very large. The number of flower bud per plant is 10-20, with 4 ~ 10 flowers per inflorescence, but the pod rate accounts for only 4.5% -10.8% of the number of flower bud differentiation, accounting for 20% ~ 35% or so, we can see a great potential for yield-increasing beans. 1 caused bean drop falling pods 1.1 temperature. Appropriate temperature of bean bean bud differentiation and pollen germination is 20 ℃ ~ 25 ℃, flowering pod adaptation temperature is 18 ℃ ~ 25 ℃, so flower bud differentiation and flowering in case of low or high temperature in summer, will make flower bud