西南林业大学学报2016，Vol.36Issue(3)：30-37,8.DOI:10.11929/j.issn.2095-1914.2016.03.006
云南松不同茎干类型群体针叶性状表型多样性比较
Compare on the Needle Phenotypic Variations between the Different Type of Trunk P opulations of Pinus yunnanensis
摘要
Abstract
The needles were collected from the different forest stand in Yiliang, Xinping and Lufeng. The plant trees were divided into the straight population and twisted or crooked population based on the morphological character-istics of trunk in canopy and regeneration layer of each forest stand. Seven needle morphological traits were measured for each population. The results showed that there was no difference for seven needle morphological traits between straight population and twisted or crooked population in canopy and regeneration layer. The average values of the nee-dle traits ( needle length, needle width, fascicle width, fascicle sheath length) for trees in canopy layer were greater than that for regeneration layer in both straight population and twisted or crooked population. But the needle shape in-dex traits ( needle length/needle width, needle length/fascicle sheath length, fascicle width/needle width) had little difference between canopy and regeneration layer in both straight population and twisted or crooked population. There were significant differences for each needle morphological trait both among populations and within population. The or-der of the coefficient variation of seven traits was:NL/FSL ( 22. 20%)>NL/NW ( 19. 15%)>FSL ( 19. 04%)>NW ( 19. 00%)>NL ( 16. 61%)>FW ( 15. 10%)>FW/NW ( 13. 20%) . Most needle morphological traits showed the vari-ations among populations was smaller than within population, the mean phenotypic differentiation coefficient had 20. 90%among populations and 79. 10%within population, which stated that the variation within group was the main source.关键词
云南松/针叶/表型多样性/干型Key words
Pinus yunnanensis/needle/phenotypic diversity/type of trunk分类
农业科技引用本文复制引用
邓丽丽,蔡年辉,孙琪,许玉兰,周丽,徐杨,李德龙,罗元,陈诗,李根前..云南松不同茎干类型群体针叶性状表型多样性比较[J].西南林业大学学报,2016,36(3):30-37,8.基金项目
西南林业大学云南省省级重点学科(林学)资助；国家自然科学基金项目(31360189)资助；西南林业大学云南省高校林木遗传改良与繁育重点实验室开放基金资助( YNGB201504)；西南地区生物多样性保育国家林业局重点实验室开放基金资助。 （林学）
