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大豆科学  2008 

黄淮海地区大豆品种脂肪酸组成成分及其变化规律

DOI: 10.11861/j.issn.1000-9841.2008.05.0755, PP. 755-759

Keywords: 黄淮海,大豆,脂肪酸,组成成分

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Abstract:

为了解黄淮海地区大豆种质资源不同脂肪酸含量的差异,掌握各脂肪酸成分含量间的相关关系,对黄淮海地区8个省份的2141份大豆品种的粗脂肪与脂肪酸各组成成分进行了分析研究。结果表明:通过长期的人工定向选择,大豆脂肪酸中不饱和脂肪酸含量增加,但亚油酸、亚麻酸含量下降。不同省份之间的大豆品种资源在脂肪酸的不同组成成分上存在较明显差异,具有丰富的遗传多样性。通过相关性分析发现亚油酸、亚麻酸与百粒重和粗脂肪之间呈极显著负相关关系,说明在提高百粒重和粗脂肪含量的同时提高必需脂肪酸含量,采用常规育种技术比较困难。

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