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Genetic Effects and Correlation Analysis for Agronomic Traits in Oil Sunflower
Author(s): 
Pages: 1736-1744
Year: Issue:  9
Journal: Acta Botanica Boreali-Occidentalia Sinica

Keyword:  油用向日葵农艺性状加性-显性模型;
Abstract: 根据加性显性与环境互作的遗传模型,对6个油用向日葵自交系及其配制的9个杂交组合在2个环境下的7个农艺性状表现进行遗传分析,揭示油用向日葵主要农艺性状遗传性质、规律以及主要农艺性状对含油率的贡献率.结果表明:株高、茎粗、盘径、百粒重、籽仁率和单盘粒重等6个遗传性状主要受加性和显性共同控制,结实率的遗传以加性、显性×环境互作效应为主,籽仁率、单盘粒重以加性、显性、显性X环境互作效应为主;性状间的各项遗传相关性多以加性遗传相关为主.百粒重的净效应对籽实含油率的加性遗传方差贡献率最高,结实率的净效应对籽实含油率的显性遗传方差贡献率最高,单盘粒重对籽实含油率的加性×环境互作遗传方差的贡献率最高.
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