中美几个棉花品种育种应用价值研究

棉花学报 Cotton Science 2005，17(1)：47-55

中美几个棉花品种育种应用价值研究
McCARTY-Jack C^1*， WU Ji-xiang²， JENKINS Johnie N¹，郭香墨³
(1. USDA-ARS, Crop Science Research Laboratory, Mississippi State, MS, USA ;
2. Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS, USA; 3. 中国农业科学院棉花研究所，农业部棉花遗传改良重点开放实验室，安阳 455112)

摘要：用3个美国陆地棉品种为母本与2个中国品种配制6个杂交组合。5个亲本与其6个杂交组合F₂和F₃种植在美国密西西比州立大学农业试验站。利用加性-显性-加×加互作遗传模型（ADAA）进行数据分析。结果表明，除了加性和显性效应外，加×加互作效应控制大多数农艺性状和纤维性状。两个中国品种均可用于纤维麦克隆值的改良。品种CR110及Deltapine 90 (DP90) 在纤维长度和强度方面具有较好的一般配合力。与品种DP90的杂交组合可以在较晚世代用于产量的改良。杂交组合Stoneville 474 (ST474)×CR1 10可用于在早期提高皮棉产量。除 ST474×CR110 之外，其它各组合均具有产量改良的潜力。组合Sure-Grow 747 (SG747)×86-1 在早期和晚期均比其它组合有较高的纤维强度。考虑到皮棉和纤维品质的基因型值，组合SG747×86-1可用于提高早期和晚期产量的改良且有好的纤维品质。
关键词：棉花；遗传模型；遗传效应；遗传改良
中图分类号：S562.035 文献标识码：A
文章编号：1002-7807（2005）01-0047-09 [全文，981KB]

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