It is advanced that leaf senescence should be studied further and regulated more effective on level of whole plant to avoid or reduce the loss on yield and quality caused by abnormal senescence.
从整株水平上加强叶片衰老的生理机制和控制技术研究，将为生产上控制衰老、减少叶片异常衰老造成的产量和品质损失提供有效的技术途径。
Series physiological and biochemical reactions are accompanied with the course of leaf senescence, and these reactions are seriously affected by endogenous and exogenous hormone level in plant.
叶片衰老过程中伴随着一系列有序事件的发生和复杂的生理生化变化，外施植物激素或内源激素水平极大地影响叶片的衰老进程。
The role of serine endopeptidase in cu-cumber leaf senescence was studied by using the inhibitor of serine endopeptidase and plant growth regulators(6-BA and ABA)on darkness-induced cucumber leaves.
采用丝氨酸内肽酶抑制剂和植物生长调节剂处理离体黄瓜叶片，研究了黄瓜叶片暗诱导衰老过程中丝氨酸内肽酶的作用。
The senescence order was leaves at plant bases first, then the leaves oil the top, the leaves in the middle the last.
叶片功能衰老的先后次序是植株下部叶片，其次是顶部叶片，最后是穗位叶和中部叶片。
The senescence order was leaves at plant bases first, then the leaves oil the top, the leaves in the middle the last.
叶片功能衰老的先后次序是植株下部叶片，其次是顶部叶片，最后是穗位叶和中部叶片。
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