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水稻主要农艺性状的冷水反应遗传分析
引用本文:韩龙植,元东林,玄英实,朴钟泽,高熙宗.水稻主要农艺性状的冷水反应遗传分析[J].中国水稻科学,2004,18(1):23-28.
作者姓名:韩龙植  元东林  玄英实  朴钟泽  高熙宗
作者单位:1. 中国农业科学院,作物品种资源研究所,北京,100081
2. 吉林省延边农业科学研究院,作物研究所,吉林,龙井,133400
3. 上海市农业科学院,作物育种栽培研究所,上海,201106
4. 汉城大学校,农业生命科学大学,农学科,韩国,水原,441-744
基金项目:韩国科学财团资助项目 ( 981 0 60 1 0 0 1 2),国家“十五”科技攻关资助项目(2 0 0 1BA5 11B0 2)
摘    要: 利用10个水稻品种配制45个半双列杂交组合,并在冷水处理下探讨了水稻主要农艺性状的冷水反应差异、配合力和遗传参数,以及冷水反应指数间的相关关系。研究表明,抽穗天数、秆长、穗长、穗粒数、结实率和穗颈长等农艺性状冷水反应的一般配合力和特殊配合力均呈显著,且一般配合力的变异大于特殊配合力的变异;水稻品种的冷水反应有着明显的差异,其中通88 7、高产102和TR22183等品种的冷水反应较迟钝,并对主要农艺性状的冷水反应指数(CRI)具有较高的一般配合力。亲本中控制秆长及其CRI值的正、负等位基因的频率基本相等,显隐性基因频率基本相同;秆长的表现型值及其CRI值受少数主效基因控制,具有较高的狭义遗传力。穗粒数、穗颈长和结实率及其CRI值与秆长的CRI值呈显著正相关,结实率的CRI值与穗颈长的CRI值呈显著的正相关。

关 键 词:水稻  冷水反应指数  一般配合力  农艺性状  遗传参数
文章编号:1001-7216(2004)01-0023-06
收稿时间:1900-01-01;

Genetic Analysis of Cold Water Response on Several Agronomic Traits of Rice
HAN Long-zhi ,YUAN Dong-lin ,XUAN Ying-shi ,PIAO Zhong-ze ,KOH Hee-jong.Genetic Analysis of Cold Water Response on Several Agronomic Traits of Rice[J].Chinese Journal of Rice Science,2004,18(1):23-28.
Authors:HAN Long-zhi  YUAN Dong-lin  XUAN Ying-shi  PIAO Zhong-ze  KOH Hee-jong
Institution:HAN Long-zhi 1,YUAN Dong-lin 2,XUAN Ying-shi 2,PIAO Zhong-ze 3,KOH Hee-jong 4
Abstract:Difference of cold-water response, general combining ability effects, genetic parameters, correlation among cold-water response index (CRI) of several agronomic traits were analysed by using 45 F 1s obtained from half diallel crosses among 10 rice cultivars.Both general combining ability (GCA) effects and specific combining ability (SCA) effects were highly significant in days to heading, culm length, panicle length, spikelets per panicle, seed setting rate and panicle exsertion.The variance of GCA was much larger than that of SCA in all above traits. Cold-water response index (CRI) of main agronomic traits for Tong 88-7, Gaochan 102 and TR22183 were much larger than those of others, and GCA effects of these varieties on CRI of main agronomic traits were higher than those of others.The frequency of positive and negative alleles, and the proportion of dominant and recessive alleles in the parents for culm length and its CRI were equal. Culm length and its CRI were affected by a few major genes, and these traits had high narrow-sense heritability. CRI for panicle length, spikelets per panicle, seed setting rate and panicle exsertion were positively correlated with CRI of culm length. CRI of seed setting rate was positively correlated with CRI of panicle exsertion.
Keywords:rice  cold-water response index  general combining ability  agronomic traits  genetic parameter
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