论文部分内容阅读
作者分别以１５年生和１０年生“富士／海棠”苹果树为试材，研究了叶片缺Ｚｎ对新梢生长、单叶面积、百叶鲜重、百叶干重、比叶重、百叶厚度和叶绿素组成情况的影响。结果表明，缺锌叶片单叶面积减少９０．５８％，百叶鲜重、百叶干重及百叶厚度均显著下降，新梢生长量减少。病叶比重小、叶绿素ａ的含量和ＣＡ／ＣＢ低，导致了叶质下降，光合功能减弱，物质积累减少，从而影响了器官的正常建造和发育。
The authors studied the effects of Zn deficient on leaf growth, single leaf area, fresh weight of leaf, dry weight of leaf, specific leaf mass, leaf thickness and chlorophyll content of 15-year-old and 10-year-old "Fuji / The impact of the situation. The results showed that the leaf area per unit area decreased by 90.58%, the fresh weight of leaf, the dry weight of leaf and thickness of blinds decreased significantly, and the growth of new shoot decreased. The smaller proportion of diseased leaves, the lower contents of chlorophyll a and CA / CB resulted in decreased leaf mass, weakened photosynthetic function and decreased material accumulation, which affected the normal construction and development of organs.