| 籼稻稻米外观品质与其它品质性状的相关性分析 |
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| 引用本文： | 石春海,朱军.籼稻稻米外观品质与其它品质性状的相关性分析[J].浙江大学学报(农业与生命科学版),1994(6). |
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| 作者姓名： | 石春海 朱军 |
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| 作者单位： | 浙江农业大学农学系 |
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| 基金项目： | 国家教委《跨世纪优秀人才专项基金》资助 |
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| 摘 要： | 利用６个籼型不育系和３个籼型恢复系按不完全双列杂交方式配制杂交组合，考察稻米外观品质等米质性状，采用种子胚乳模型分析成对性状间的多种遗传相关。结果表明，粒长与长宽比、长宽比与直链淀粉含量、垩白面积与胶稠度、垩白面积与蛋白质指数以及垩白面积与赖氨酸指数性状间具有明显的种子直接加性相关、母体植株加性相关以及种子直接加性与母体植株加性相关，但也受制于一些显性相关分量，而粒长与粒宽、粒宽与长宽比、粒宽与垩白面积、粒宽与精米率、粒宽与直链淀粉含量、长宽比与精米率、垩白面积与蛋白质含量以及至白面积与赖氨酸／蛋白质比例的相关则以显性相关为主。对于以加性相关为主的成对性状，间接改良的效果较好。
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| 关 键 词： | 遗传相关 稻米品质 籼稻 |
Correlations analysis of rice exterior quality traits and other traits in indica rice. |
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| Shi Chunhai,Zhu Jun.Correlations analysis of rice exterior quality traits and other traits in indica rice.[J].Journal of Zhejiang University(Agriculture & Life Sciences),1994(6). |
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| Authors: | Shi Chunhai Zhu Jun |
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| Abstract: | Correlations analysis of rice exterior quality traits and other traits was conducted for the experiment of incomplete diallel crosses with six cytoplasmic male sterile lines and three restor-er lines in indica rice by using the genetic model for endosperm quantitatively traits in seeds of ce-real crops. The results indicated that the seed additive correlations,maternal additive correlations,correlations between seed and maternal additive effects were important between brown rice length(LBR) and the ratio of brown rice length to width(L/W),L/W and amylose content(AC),chalkiness area (CA)and gel consistency(GC),CA and protein index (PI),and CA and lysine in-dex (LI).But these paired traits also affected by some dominance correlations. It was mainly con-trolled by dominance correlations between LBR and brown rice Width(WBR),WBR and L/W,WBR and CA,WBR and milling rice recovery(MRR),WBR and AC,L/W and MRR,CA and protein content(PC),and CA and the ratio of lysine content to protein content(RLP).Indirect se-lection was better for the paired traits mainly controlled by addltive correletions than other traits. |
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| Keywords: | genetic correlations rice quality indica rice |
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