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大豆酸性磷酸酶活性变化及磷高效基因型的筛选与相关分析

DOI: 10.3969/j.issn.1000-7091.2013.03.026, PP. 145-151

Keywords: 大豆,酸性磷酸酶活性,磷利用率,磷高效品种

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Abstract:

分析不同磷处理下的大豆幼叶、根尖酸性磷酸酶活性与植株磷利用率间的相关性,提供能够快速准确筛选磷高效利用大豆基因型的生化指标;在3种不同磷处理水平下,测定并比较12个大豆品种的幼叶、根尖酸性磷酸酶活性以及植株磷利用率;检测2μmol/L磷处理下的159份大豆品种的根尖酸性磷酸酶活性。2μmol/L磷处理下,根尖酸性磷酸酶活性与磷利用率间存在极显著正相关(r>r0.05),并从供试171份材料中筛选出6个磷高效大豆基因型;低磷条件下,大豆根尖酸性磷酸酶活性可作为磷高效基因型筛选的重要生化指标。

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