论文部分内容阅读
1 早结丰产树体结构分析1995年 10月在南丰调查 16 3株 2年生南丰蜜桔树 ,其中 5 0株早结丰产。其树体结构要素如下。1.1 树干粗 2年生树干粗 1.2 3～ 2 .78ｃｍ ,其中 1.5 5～ 1.86ｃｍ的占 31.9%,1.87～2 .78ｃｍ的占 39.3%。只有 4.3%的树干粗大于 2 .5 1ｃｍ ,9.8%的树
An early fruiting tree structure analysis In October 1995 in Nanfeng survey 16 3 2-year-Nanfeng honey orange trees, of which 50 early fruiting. The tree structure elements are as follows. 1.1 trunk 2-year-old trunk rough 1.2 3 ~ 2.78cm, of which 1.55 ~ 1.86cm accounted for 31.9%, 1.87 ~ 2.78cm accounted for 39.3%. Only 4.3% of the trunk is thicker than 2.5cm, 9.8% of the tree