鹅掌楸属树种种源试验研究  

A Case Study on Provenance Testing of Tulip Tree(Liriodendron spp)

作　　者：李火根[1] 陈龙[1] 梁呈元[2] 黄敏仁[1] 

机构地区：[1]南京林业大学 [2]江苏省.中科院植物研究所

出　　处：《林业科技开发》2005年第5期13-16,共4页China Forestry Science and Technology

基　　金：国家自然科学基金(39870624);江苏省高技术项目(编号:BG2003306)的资助

摘　　要：以木兰科鹅掌楸属的2个种,即中国鹅掌楸和北美鹅掌楸的17个种源试验林为材料,分析了各种源12a生时的生长量。结果表明:生长量在两个种间差异明显,北美鹅掌楸明显优于中国鹅掌楸;同时,生长量在种内不同种源间也存在显著差异,而种源内个体间差异不显著。对中国鹅掌楸12个种源的生长量与地理、气候因子的相关分析结果表明中国鹅掌楸的生长量有从南至北逐渐增加的趋势,呈现出渐变群的地理变异模式;而生长量与气候因子相关不大。通过聚类分析,可将中国鹅掌楸12个种源分为两大类。5 provenances of Ameican tulip （ Liriodendron tulipifera L） and 12 provenances of Chinese tulip （ Liriodendron chinese Sarg. ） were tested in 1993 at Xiashu Forest Farm, Jüyong, Jiangsu. The growth （DBH, Height） of each provenance were investigated on November, 2003. A significant difference was found between species and also among provenances within specie, however, no significant difference were examined among individual within provenance. The correlation analyses among growth traits and geographic and climate factors indicated that the growth of Chinese tulip shows a cline geographic pattem in which northem provenances grow better than southem provenances, where no significant correlation were detected between growth and climate factors, With clustering analyses, 12 provenances of Chinese tulip was classified into two groups.

关 键 词：中国鹅掌楸 北美鹅掌楸 种源 地理变异 鹅掌楸属树种 试验研究 气候因子 生长量 个体间差异 种间差异 

分 类 号：S792.21[农业科学—林木遗传育种] S791.248[农业科学—林学]