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电导法对32个辣椒品种组合抗寒性的测定及配合力分析

杨少瑕 吕庆芳 梁春林

黑龙江农业科学Issue(2):6-15,10.
黑龙江农业科学Issue(2):6-15,10.

电导法对32个辣椒品种组合抗寒性的测定及配合力分析

Determination and Combining Ability Analysis of Cold Resistance of 32 Combinations of Hot Peper Hybrid by Electric Conductivity

杨少瑕 1吕庆芳 1梁春林1

作者信息

  • 1. 广东海洋大学农学院,广东湛江524088
  • 折叠

摘要

Abstract

In order to compare the cold resistance of the hot pepper varieties ,taking 32 combinations of hot pep-per hybrid as materials ,the relative electrical conductivity was deteriminated under low temperature in artificial climatic .The turning point temperature(semi-lethal temperature)was measured by Logistic equation and used as the index of cold-tolerance for all hybrid combinations ,the semi-lethal temperatures were compared .The re-sults showed that relative conductivity was increasing with the decrease of temperature ,change processing was in an S curve .The order of cold resistance of hot peppers was H2> H13≈ H28> H31≈ H1≈ H23> H24>H26> H30> H8> H27≈ H19> H5≈H12> H21> H3> H18> H15≈ H14> H22> H17> H7≈ H29> H4>H11> H10≈ H16> H20> H6> H9> H25> H32 .Combining ability analysis showed that the lowest GCA effect of relative conductivity was parent P1 and P2 ,the lowest SCA was P1 × P2 .

关键词

线椒/电导法/半致死温度/抗寒性/配合力

Key words

hot pepper/electric conductivity/semi-lethal temperature(LT50 )/cold resistance/combining ability

分类

农业科技

引用本文复制引用

杨少瑕,吕庆芳,梁春林..电导法对32个辣椒品种组合抗寒性的测定及配合力分析[J].黑龙江农业科学,2014,(2):6-15,10.

基金项目

科技部农转基金资助项目(2011GB2E000007);广东省农业科技攻关资助项目(2012A020602051);广东省高等学校特色专业建设资助项目 ()

黑龙江农业科学

1002-2767

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