热带作物学报2017，Vol.38Issue(6)：983-989,7.DOI:10.3969/j.issn.1000-2561.2017.06.001
不同品系橡胶树锯干处理后生长恢复能力的评价及分析
Evaluation and Analysis of Growth Recovery of Different Rubber Clones After Cut-stem Treatment
摘要
Abstract
Growth recovery is very important to rubber tree after the mechanical or physiology damage.In the present study,66 rubber clones were selected to evaluate their growth recovery after the seedling stem was cut apart.The indices such as days from cut-stem treatment to lateral buds sprouting (buds-sprouting days),lateral branch number,lateral branch length,lateral branch diameter and leaf whorl number of lateral branch were observed and analyzed.Grow recovery of 66 clones were comprehensively evaluated by binding the methods of principal component analysis (PCA) and cluster analysis.The results showed that the coefficients of variance (CV) of all 5 indices were above 16％.The variation of lateral branch length among clones was maximum with a CV of 34.74％,while the variation of buds-sprouting days was minimum with a CV of 16.73％.The results of PCA and correlation analysis indicated that,the 2 indices of buds-sprouting days and lateral branch length could be core indices to evaluate the rubber tree's potential of sprouting and growth respectively.The composite scores of 66 clones computed from PCA were used to perform cluster analysis.The results showed that,74.24％ of all clones had medium growth recovery,while 8 clones such as Baoting 3412,Xu 67020A,Daling 66-41-2040,PR 107,KHA 10,Daling 64-21-645,Fujian 796-11 and Polyploid 93-114 had excellent growth recovery.关键词
橡胶树/锯干处理/生长恢复/评价Key words
Hevea brasiliensis/cut-stem treatment/growth recovery/evaluation分类
农业科技引用本文复制引用
王祥军,黄肖,方家林,李维国,张晓飞,胡彦师,高新生,贺军军,张华林..不同品系橡胶树锯干处理后生长恢复能力的评价及分析[J].热带作物学报,2017,38(6):983-989,7.基金项目
海南省自然科学基金(No.20153090) （No.20153090）
现代农业产业技术体系建设专项(No.nyhyzx07-033-1). （No.nyhyzx07-033-1）
