南充地区野生葎草构件性状多样性分析  

Asexual reproduction component and its diversity of wild Humulus scandens in Nanchong

作　　者：刘金平[1] 王艳[1,2] 

机构地区：[1]西华师范大学生命科学院,四川南充637002 [2]南充市蓬安两路乡学校,四川蓬安638255

出　　处：《草业科学》2009年第8期68-71,共4页Pratacultural Science

基　　金：西华师范大学科研启动项目(06B032);四川省教育厅项目(08zc008)

摘　　要：为南充地区种质资源优质品种的选育提供实践指导和奠定理论基础,试验通过对4个葎草Humulusscandens种群的叶、茎、花序等构件的性状进行测定和分析,结果说明:不同葎草种群构件性状与数量呈现多样性,叶柄长、叶半径的变异系数分别为43.9%和27.54%;其二级茎变异系数分别为86.33%、91.46%、76.36%和51.20%;三级茎的变异系数分别为81.83%、66.44%、52.35%和26.82%;节间长的变异系数分别为38.17%、49.77%、32%和48.34%;花序长、花序高度、小花数、花序半径、小花半径等都表现出较大的差异性。The asexual reproduction components of 4 populations of Humulus scandens in Nanchong of Sichuan Province were studied and the results showed the coefficient of variation （cv） of petiole length and the leaf radius were 43.9% and 27.54 % respectively. The adult plants had a great difference in cv between their second-level stem, the third-level stem and the node segment length. For the 4 populations, the cv of second-level stem were 86.33%, 91.46%, 76.36% and 51.20% respeetively; as the third-level stem, they were 81.83%, 66.44%, 52.35% and 26.82% respectively. The cv of node segment length were 38.17%, 49.77%, 32% and 48.34% respectively. Moreover, the inflorescence length, floret number, inflorescence radius and floret radius were obviously different.

关 键 词：律草 构件 多样性 

分 类 号：S451[农业科学—植物保护]