植物研究2011，Vol.31Issue(1)：100-104,5.
濒危树种格木天然群体自由授粉子代苗期生长变异
Variation of Seedling Growth of Open-pollinated Progeny from Natural Populations of a Rare and Endangered Tree Species Erythrophleum fordii Oliv.in China
摘要
Abstract
Erythrophleum fordii Oliv. is a rare and endangered tree species with great economic and ecological value in warm subtropical and tropical zones of China. In the present study, variation of seedling growth traits of open-pollinated progeny was investigated within and among six natural populations of this species, and the correlations among seedling growth traits, seed traits, and geographic and climate regimes of their parent populations were analyzed. Significant differences existed in seedling growth among populations as well as among individuals within populations. Variation of seedling height among populations was higher than that of stem collar diameter,so early selection should be conducted mainly on the basis of seedling height. Epicotyl length was in significant positive correlation to seed length as well as seedling height to seed volume, seedling stem collar diameter to weight per 1000 seeds. Radicle length was in significant negative correlation to longitude, as well as seedling stem collar diameter to mean annual rainfall and ratio of height and diameter to altitude. These findings will provide basic data for further studies on genetic breeding, and help facilitate natural resources management and plantation development of E. fordii Oliv..关键词
格木/遗传变异/子代苗期测定分类
农业科技引用本文复制引用
赵志刚,郭俊杰,曾杰,徐建民,沙二,林开勤..濒危树种格木天然群体自由授粉子代苗期生长变异[J].植物研究,2011,31(1):100-104,5.基金项目
中央级公益性科研院所基本业务费专项资金项目(热林所2007-26) （热林所2007-26）
