西南林业大学学报2016，Vol.36Issue(5)：16-20,5.DOI:10.11929/j.issn.2095-1914.2016.05.003
苦楝不同种源叶片性状变异研究
Variation of Leaf Morphological Characters of Melia azedarach from Different P rovenances
摘要
Abstract
Leaf traits of 10 provenance resources were determined, and the genetic variations of leaf from dif-ferent provenances were analyzed. The results showed that variance coefficient of 6 leaf traits ranged from 16. 48%~41. 26%, and significant difference of leaf traits existed from different provenances. There existed high heritability in footstalk length and leave area, reached more than 70%, the other four leaf traits reached more than 45%, the differ-ence of Melia azedarach leaf traits is controlled by genetic control to a certain degree. Their coefficients of the regres-sion equation were greater than 0. 70 except the provenance of Xingning, and there were significant correlation be-tween leaf traits and latitude, altitude, annual average temperature, annual rainfall, frost-free period, annual average sunshine, there was significant positive correlation between plant height and the ratio of leaf length/width. The crown breadth was negatively correlated with leaf area, positively correlated with the ratio of leaf length/width. Using the cluster analysis of 6 leaf characteristics of Melia azedarach, 10 provenances can be divided into 2 types.关键词
苦楝/种源/叶片性状/遗传变异Key words
Melia azedarach/provenance/leaf trait/genetic variation分类
农业科技引用本文复制引用
陈丽君,刘明骞,廖柏勇,丁美美,陈晓阳..苦楝不同种源叶片性状变异研究[J].西南林业大学学报,2016,36(5):16-20,5.基金项目
广东省林业科技创新项目(2011KJCX002)资助。 （2011KJCX002）
