不结球白菜不育系组合产量性状杂种优势分析  

Analysis of Heterosis of Yield Characters on Male Sterile Line in Non-heading Chinese Cabbages

作　　者：鱼昭君 张淑娟[1] 闫芳芳[1] 惠麦侠[1] 

机构地区：[1]西北农林科技大学园艺学院,农业部西北地区园艺作物生物学与种质资源创新重点实验室,陕西杨凌712100

出　　处：《西北农业学报》2017年第4期603-608,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家自然科学基金(31372062,31272164);陕西省农业科技创新与公关项目(2015NY103);唐仲英育种专项(N37);国家重点研发计划(2016YFD010101)~~

摘　　要：为提高对不结球白菜产量构成因素的选择效率,以不结球白菜雄性不育系‘ZY’作母本,5份稳定遗传自交系作父本,采用顶交法配制杂交组合,分析F_1代产量性状的杂种优势。结果表明,10个产量性状均存在一定的杂种优势,都有较高的正向中亲优势,优势为10.11%~153.17%;除叶数外,其余9个性状均有一定程度的超高亲优势,超亲优势为2.89%~89.30%。不结球白菜产量杂种优势主要取决于单株产量、叶柄长和叶宽。ZY×13xs156组合在单株产量、叶质量和叶长上有最强杂种优势,在杂种优势利用中具有较大的潜力。To improve selection efficiency for yield components in non-heading Chinese cabbages ,male sterile line ＇ZY＇ and five high generation inbred lines were used as parents to analyze the heterosis of F1 yield characters in non-heading Chinese cabbages by top-cross method. The results showed that heterosis existed ten yield characters with a level of positive mid-parents,which was 10.11%- 153. 17% ,nine of them had the heterosis over better-parents which was 2.89%- 89.30% apart from the

关 键 词：不结球白菜 雄性不育系 产量性状 杂种优势 

分 类 号：S634.3[农业科学—蔬菜学]