棉花核不育系GA18产量品质性状的杂种优势分析  

Analysis of Heterosis of Yield and Fiber Quality Traits for Genetic Male Hybrid in Cotton

作　　者：张超[1] 黄文娟[2] 牟方生[1] 杨泽湖[1] 戢沛城[1] 龚一耘[1] 马炳田[2] 毛正轩[1] 

机构地区：[1]四川省农科院经济作物育种栽培研究所,四川简阳641400 [2]四川农业大学水稻研究所,四川温江611130

出　　处：《西南农业学报》2010年第4期1043-1046,共4页Southwest China Journal of Agricultural Sciences

基　　金：科技部科技支撑计划(2006BAD01A0506);四川省育种攻关和四川省财政育种工程项目

摘　　要：比较分析抗虫核不育系GA18配制的22个杂交种的产量、纤维品质性状的杂种优势发现,GA18配制杂交种铃重的平均正向中亲优势为5.37%,且有50%的组合具有正向超亲优势,但是衣分的杂种优势不明显。纤维上半部平均长度的中亲优势多数表现为正向优势,有50%的组合具有正向超亲优势,马克隆值的杂种优势多数表现为负向优势,比强度正向中亲优势大于5%的组合占36.4%,超亲优势大于5%的组合占27.3%。结果表明,GA18配制的杂交种纤维品质性状的杂种优势较显著,用GA18配制杂交种有利于提高杂交种的纤维品质。The heterosis of yield and fiber quality traits of 22 hybrids which were crossed with the new genetic male line GA18 was analyzed,the results showed that the average mid-parent heterosis for boll weight was 5.37 % and 50 % combinations showed over-high parent heterosis,but the heterosis of lint percent were not significant.The fiber length of the most combination showed mid-parent heterosis and 50 % combinations showed over-high parent heterosis.The fiber micronaire of the most combinations showed negative heterosis.The combinations of which mid-parent heterosis and over-high parent heterosis for the fiber strength were over 5 % were 36.4 % and 27.3 %.

关 键 词：棉花 核不育 杂种优势 产量性状 品质性状 

分 类 号：S562[农业科学—作物学]