南京林业大学学报（自然科学版）2013，Vol.37Issue(1)：49-54,6.
不同种源苦楝种子生物学特性差异
The differences of seed biological characters in Melia azedarach L.from different provenances
摘要
Abstract
The seed biological characters of Melia azedarach L. from 10 different provenances were studied, which included seed length, width, seed length and width ratio, one thousand seed weight, seed moisture content, germination percentage, germination index, vigor index and respiration rate. The results showed that there was a significant variability in seed morphology among different provenances. According to the correlation analysis between seed traits and the stand environment as well as geographical locations, there were no close relationships. There were some correlation between seed size and latitudinal, but seed shape was negatively correlated with latitude. According to the cluster analysis of seed morphology, the natural range of Melia azedarach L. from 10 different provenances could be divided into 5 districts. The seed germination percentage, germination index, vigor index and respiration rate were significantly different among different provenances. The seed germination percentage, germination index, vigor index were significantly correlated with respiration rate, but not closely correlated with seed morphology, which showed that seed vigor was more influenced by seed physical condition.关键词
苦楝/种源/种子生物学特性Key words
Melia azedarach L./provenance/ seed biological character分类
农业科技引用本文复制引用
王家源,郭杰,喻方圆..不同种源苦楝种子生物学特性差异[J].南京林业大学学报（自然科学版）,2013,37(1):49-54,6.基金项目
江苏省科技厅苏北科技发展计划项目(NB2011046) （NB2011046）
江苏省2011年度普通高校研究生科研创新计划项目(CXZZ11_0534) （CXZZ11_0534）
