龙眼叶片元素含量与成花关系研究初报

Preliminary studies on relationship between flowering and element content in leaves of longan

用等离子发射光谱法对越冬龙眼及化学诱导两个月内龙眼叶片 N、P、K、Ca、Mg、Cl元素含量的测定发现 :Cl元素含量的升高与龙眼果树成花有一定的联系 ,越冬龙眼树叶片 Cl含量增幅达 3 .7%以上 ,诱导龙眼树叶片 Cl含量增幅达 10 8.7%以上的果树不同程度形成了花芽 ;诱导处理后的“大乌圆”和“石硖”龙眼叶片的 P、K、Ca、Mg含量起伏较大 ,规律性小 ,而 N。

Investigation of element content by isoionic emissive spectrum in overwinter and twomonth chemical treated longan showed increasing in flowering of the tree with increasing of chloride content in leaves. The chloride content increased more than 3.7% during winter and 108.7% after chemical treating for two months, which may induce various scale of flowering in longan trees, respectively.