云南稻核心种质光壳稻耐低磷特性研究

SOUTHWEST CHINA JOURNAL OF AGRICULTURAL SCIENCES(2006)

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Abstract
在土壤有效磷6.26×10-6和40×10-6条件下对云南地方稻核心种质40份光壳稻和495份具稃毛稻种(非光壳)进行耐低磷特性比较,初步结论如下:(1)光壳稻的耐低磷强弱与籼粳程氏指数有一定联系,强耐低磷品种主要分布在偏籼和偏粳的中间型陆稻.(2)光壳稻平均耐低磷力显著低于其他稻,耐低磷力由籼至粳到光壳依次递减,呈连续性变异.(3)耐低磷强弱与稃毛有无、籼粳分化密切相关.
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