结荚数是蚕豆产量结构中变化较大的一个因素。了解蚕豆开花结荚习性,采取针对性管理措施才能多结荚夺高产。 一、蚕豆开花的习性 蚕豆是无限花序,开花顺序由下而上,由内而外。先开的花容易结荚,后开的花成荚率较低;靠近簇柄的第一朵花成荚率高,第二、三朵及以后的花成荚率逐渐降低。一般有76—80％的花不能结荚,落花落荚严重。 Pod number is a major factor in the changes in the yield structure of broad bean. Understand the flowering habits of broad beans, take targeted management measures to multi-pod high yield. First, the habit of broad bean blossom Broad bean is infinite inflorescence, flowering from bottom to top, from the inside out. First open the flowers easy to pod, after opening the flower pod rate is low; close to the first flower cluster stem into a high rate of pod, second, third and later flower pod rates gradually decreased. 76-80% of the flowers generally can not pod, drop falling pods serious.