橡胶树速生种质资源年生长动态分析  

Analysis of Annual Growth Dynamic on Fast-growing Germplasm Resources of Rubber Tree

作　　者：李小琴[1] 张凤良[1] 况宗君 杨湉 毛常丽[1] 吴裕[1] LI Xiaoqin1, ZHANG Fengliang1, KUANG Zongjun2, YANG Tian1, MAO Changli1, WU Yu1(1. Yunnan Institute of Tropical Crops, Jinghong 666100, China; 2.Agricultural Comprehensive Service Center of Junsai township in Zhenkang county, Zhenkang 677700, China)

机构地区：[1]云南省热带作物科学研究所,云南景洪666100 [2]镇康县军赛乡农业综合服务中心,云南镇康677700

出　　处：《热带农业科技》2018年第3期1-6,26,共7页Tropical Agricultural Science & Technology

基　　金：农业部种质资源保护项目(151721301354052002-01);云南省应用基础研究计划青年项目(2017FD230);云南省热带作物科技创新体系建设专项资金项目(RF2017-1);云南省橡胶产业技术体系(2017KJTX008-01)

摘　　要：以2 159份橡胶树种质资源为基础,于2009-2017年逐年对其年径围生长量进行测量,选出速生种质资源56份,分析其年生长动态规律,为速生种质资源早期选择提供理论指导。结果表明,选出的速生种质资源的9年生径围总生长量均值为68.23 cm,是总群体均值55.30 cm的1.23倍,但入选速生群体内部的年生长动态呈现较大差异性,通过聚类分析可以清晰地将每一类区分开。建议在对速生种质资源进行生长早期选择时,选择年龄以5龄为宜,入选率控制在总群体的12%左右,可使速生资源的选择正确率达到90%。Based on the germplasm resources of 2 159 rubber trees,the annual diameter growth was measured from 2009 to2017,and 56 fast-growing samples were selected to analyze the annual growth dynamics and provide theoretical guidance for the early selection of fast-growing germplasm resources. The results indicated that the diameter increment of the fastgrowing germplasm samples at the age of nine averaged in 68.23 cm was as 1.23 times as the total group with an averaged value of 55.30 cm. There is a significant difference in the growth dynamics of the fast-growing germplasm resources,but the categories can be classified clearly through cluster analysis. It suggests that the early selection of fast-growing germplasm resources should be selected at age of 5,and that the correct rate of the resource can reach to 90% when the total group is controlled to about 12%.

关 键 词：橡胶树 速生资源 早期选择 年生长规律 

分 类 号：S794.104[农业科学—林木遗传育种]