北京地区油松生态型变异的研究  

A Study on the Variation among and within Ecotypes of Pinus tabulae formis

作　　者：徐化成[1] 李长喜[2] 唐谦[2] 

机构地区：[1]北京林业大学 [2]中国林业科学研究院林业研究所

出　　处：《林业科学研究》1992年第2期142-148,共7页Forest Research

摘　　要：本文进行了油松60个种源生态型间和生态型内种源间变异在北京地区的比较,同时对同一生态型内部不同海拔种源的表现差别作了探讨。9年研究结果表明,无论是生态型间,还是生态型内种源间都存在着显著地理变异,但生态型间的变异比生态型内种源间的变异要大。至于同一生态型内部不同海拔种源的变异不太明显。The research on the variation among and within ecotypes of Pinus tabulaeformis was conducted and the differences among the provenances from different elevation origins in the same ecotype was also studied. The results show that there are significant differences in growth both among the ecotypes and differences within the ecotypes. Moreover, the variations among the ecotypes are more important than those within the ecotypes. No significant differences were found among the provenances from different elevation origins in the same ecotype.

关 键 词：油松 生态型 地理变异 

分 类 号：S791.254[农业科学—林木遗传育种]