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玉米、高粱和大豆的打叶处理引起籽粒产量和粒重的显著下降。减产量受失叶时间和严重程度的影响。高粱和玉米打叶使粒数和粒重下降(Stickler 等,1961;Hanway,1969;Tollena-ar 等,1978)。玉米早期打叶降低粒数,而授粉后打叶降低粒重。打叶还缩短玉米籽粒灌浆期的持续时间(Tollenaar 等,1978;Jones 等,1983;Barnett 等,1983)。在抽丝中期后12天全部打叶,降低玉米籽粒生长速率,而在抽丝中期后24天打叶不降低。
Leaf removal from corn, sorghum and soybean resulted in a significant drop in grain yield and grain weight. The yield reduction is affected by the time and severity of leaf loss. Leaf opening of sorghum and maize reduced grain number and grain weight (Stickler et al., 1961; Hanway, 1969; Tollena-ar et al., 1978). Early leaves play to reduce the number of corn, pollination and leaf fall to reduce grain weight. Stripping also shortened the duration of grain filling of maize (Tollenaar et al., 1978; Jones et al., 1983; Barnett et al., 1983). Leaves were harvested 12 days after mid-spinning, reducing maize grain growth rate, whereas leaf opening was not reduced 24 days after mid-spinning.