内蒙古草木樨属26份种质表型性状多样性分析

Chinese Journal of Grassland(2018)

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Abstract
对内蒙古的26份草木樨种质资源表型性状多样性进行研究,结果表明:(1)草木樨22个表型性状种质间变异程度较高,叶面积的变异系数最大,为59.09%,小花长变异系数最小,为9.7%.(2)主成分分析表明,草木樨的22个表型性状可简化为5个主成分,其累计贡献率达到82.446%,以株高因子贡献率最高,为36.9%,株高、花序长、单序粒数、叶形指数、花萼长、花长、荚果长等性状是造成草木樨种质资源表型差异的主要因素.(3)采用系统聚类分析可将26份草木樨种质材料分为6大类.
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