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初步探讨的情况表明,茶树叶片着生角度的大小(与水平方向的夹角)并不显著影响单位叶面积的同化效能,但对叶面积指数有正作用的趋势,相关系数为+0.6805(r_(0.05)=0.811),从而有利于提高整株或整园的光合生产力。茶树叶片着生角在一定程度上受叶厚和比叶重(单位叶面积干物重)的制约,在成龄茶树叶厚对叶片着生上斜角的相关系数为+0.9059,达到了 P=0.05的显著标准(r_(0.05)=0.878)。即叶片越厚叶片着生越上斜。测度茶树叶片着生角的大小可采用一种简便的方法——“对夹叶夹角法”,即待枝梢顶部相邻两叶完全定型成熟后,量取叶片两端连线所成的上夹角,而后取此夹角的二分之一的余角(即二叶的平均上斜角)作为表征该品种茶树叶着生状况的代表值。品种间叶片着生角度差异以成龄茶树较大,幼龄茶树差异较小,故不宜以苗期鉴定代替成龄时的鉴定。
The results of preliminary study showed that the size of the angle of emergence of tea leaves (horizontal angle) did not significantly affect the assimilation efficiency of leaf area per unit area, but had a positive effect on leaf area index, the correlation coefficient was +0.6805 (0.05) = 0.811), which is beneficial to increase the photosynthetic productivity of whole plant or whole plant. The leaf angle of tea leaves was restrained to a certain extent by leaf thickness and specific leaf weight (dry matter weight per unit leaf area). The correlation coefficient of the leaf thickness of mature tea leaves with the bevel was +0.9059, reaching P = 0.05 significant criterion (r_ (0.05) = 0.878). That is, the thicker the blade leaves the more inclined the students. Measure the size of the angle of the leaves of tea leaves can be a simple method - “on the folder with the angle method”, that is to be shoots at the top of the adjacent two leaves completely stereotyped mature, the amount taken by the ends of the leaves connected And then take the angle of one-half of the remaining angle (ie, the average angle of the two lobes) as the characterization of the varieties of tea leaves on behalf of the state. Differences in the angle between the leaves of cultivars to the older tea tree larger, young tea tree differences are small, it is not appropriate to seedling identification instead of identification.