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花生主茎叶片的干物重、叶面积、比叶重及糖氮化合物含量叶位间存在很大差异,同时也受到叶令的影响。中部叶片叶面积大,叶片薄,干物重及糖氮化合物含量高。衰老的叶片干物重和糖氮化合物含量均有所下降。叶片这些性状的差异与叶片各自所处的生态条件及植株内部代谢有关。用逐步回归对主要气象因子进行筛选,结果表明温度是影响主茎叶片生长的主要因子。
The dry matter weight, leaf area, specific leaf weight and the content of sugar and nitrogen compounds in the main stem leaves of peanut vary widely, and are also affected by leaf declining. Central leaf area, leaf thin, dry weight and sugar nitrogen compounds high. The leaf dry weight and sugar-nitrogen content decreased in both aged leaves. The differences of these traits in leaves are related to the ecological conditions in the leaves and the internal metabolism of the plants. The main meteorological factors were screened by stepwise regression. The results showed that temperature was the main factor affecting the growth of main stem leaves.