热带亚热带植物学报Issue(6)：601-609,9.DOI:10.11926/j.issn.1005-3395.2014.06.008
贵州地方梨种质果实品质性状多样性分析
Diversity of Fruit Quality of Local Pear Germplasm Resources in Guizhou
摘要
Abstract
In order to understand the genetic diversity of local pear (Pyrusspp.) in Guizhou Province, thirty-four germplasms were collected and their fruit qualities were observed for three years. Twelve indicators of fruit quality were analyzed using principal component analysis (PCP) and Q-type cluster methods. The results showed that there was signiifcant difference among the 34 pear germplasms in all fruit quality traits except for edible rate, demonstrating that pear germplasm resources in Guizhou have abundant genetic diversity. The principal component analysis showed that the ifrst ifve principal components accounted for 85.52%, respectively, indicating that the contribution rate of fruit quality characters scattered and cumulative contribution rate was not obvious, and at the same time showing that the variation of fruit qualities of pear resources have pleiotropy. Q-type cluster analysis showed that Haizi pear-3 and Hulu pear cluster each, which revealed their unique quality characteristics. These would laid foundation for development and utilization and variety selection of pear germplasm resources in Guizhou Province.关键词
梨/种质/果实品质/遗传多样性/贵州Key words
Pear/Germplasm/Fruit quality/Genetic diversity/Guizhou Province引用本文复制引用
张起,安华明..贵州地方梨种质果实品质性状多样性分析[J].热带亚热带植物学报,2014,(6):601-609,9.基金项目
贵州省科技攻关项目[黔科合农G字(2009)4003]资助 （2009）
