不同拉枝角度对嘎拉苹果叶片质量的影响

The Effect of the Quality of Leaf with Different Branch Angle

本试验在陕西省宝鸡市农业科技果业专家大院苹果园进行,以9-10年生细长纺锤形嘎拉树为试材,选高度、方位、生长势基本一致的枝条作为单位枝进行40°-50°(Ⅰ),60°-70°(Ⅱ),80°-90°(Ⅲ),100°-110°(Ⅳ)4个角度的拉枝处理。2009-2010年测定了叶片质量、叶片色素物质、叶片N、P、K、Ca、Mg含量。.研究适宜渭北苹果产区嘎拉生长的枝条角度。

This study was carried in the professor orchard of science and technology in Baoji of Shaanxi province,using the material of 9 to 10 years old spindle Gala trees,choosing the branches with same height,position and growth vigor as unit branches,and dealt with the treatment of 40°-50°（Ⅰ）,60°-70°（Ⅱ）,80°-90°（Ⅲ）,100°-110°（Ⅳ）.We measured the quality of leaf,the content of pigment and N、P、K、Ca、Mg.The popurse is to find the proper branch angle of Gala.