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去雄是玉米单交制种中的重要环节,而一些操作人员,为了不发生漏拔或漏分枝,往往宁愿多带叶。去雄带叶对制种产量有无影响?笔者于1982年在三块制种田里进行了玉米去雄带顶叶与玉米制种产量关系的试验。结果表明,去雄带一片顶叶的比对照减产5%左右,带两片叶的减产7%左右,带三片叶的减产10%以上。去雄带顶叶减产的原因,是玉米灌浆期间下部的三、四片叶基本枯干或衰老,加之处于遮光地位,因此,后期干物质积累约80%靠中上部叶完成。这样,去雄带叶势必减少玉米光合作用的总面
Extinction is an important part of maize single crossbreeding, and some operators, in order not to drain or drain branches, tend to be more leafy. To male and leaves with no effect on seed production? Author in 1982 in the three-farming in corn and male to the top of leaves and corn seed yield test. The results showed that the removal of a parietal lobe was about 5% less than that of the control, the yield was reduced by about 7% with two leaves and the yield was reduced by more than 10% with three leaves. The reason for the reduction of the top leaves of the male to the male is that the three or four leaves in the lower part of the corn are basically withered or senescent during the grain filling stage of the corn, together with the shading position. Therefore, about 80% of the post-dry matter accumulation is completed by the middle and upper leaves. In this way, to leave the male leaves will inevitably reduce the total photosynthesis of corn