不结球白菜三交种和双交种优势潜力分析  

Heterosis Potential of Triple Hybrid and Double Hybrid of No-heading Chinese Cabbage

作　　者：郑学立[1] 邵贵荣[1] 陈文辉[1] 方淑桂[1] 曾小玲[1] 

机构地区：[1]福建省福州市蔬菜科学研究所,福建福州350111

出　　处：《福建农业学报》2015年第4期332-338,共7页Fujian Journal of Agricultural Sciences

基　　金：福建省科技计划重大专项专题[2008NZ0002-1(1)];福州市科技计划项目(2012-N-92)

摘　　要：通过不结球白菜三交种、双交种与单交种杂种优势的比较研究,结果表明:三交种、双交种和单交种相比,其单株重优势率表现不一,以平均值作比较分析,除产量性状中叶柄重和单株重三交种比单交种大外,其他性状三交种均与单交种相当;而双交种在株高、叶柄长、叶柄重和单株重等方面不如单交种。单交种整齐性最好,双交种整齐性最差。三交种耐热性最强,而双交种和单交种耐热性相当。抗病性强弱顺序为双交种>三交种>单交种,并且双交种和三交种的病害扩展速度大大低于单交种。Heterosis of no-heading Chinese cabbage were compared for triple and doube hybrid with single hybrid.The results showed that the heterosis in single plant weight were different between triple,double and single hybrid of no-heading Chinese cabbage.Based on average,the leaf-stalk weight and single plant weight of triple hybrid were higher than which of single hybrid,while other indices in yield traits were similar for both.The performances of plant height,leaf-stalk length,leaf-stalk weight,and single plant weight were better in single than in double cross hybrid.The growth regularity was the best in single hybrid but the worst in double hybrid.The heat-tolerance of plant was the best in triple hybrid,and that of the double hybrid and single hybrid was similar;The capacity in disease resistance of three hybrid was ranked in order as double cross hybrid,triple hybrid,and then single cross hybrid,while the spread of disease was quicker in double cross hybrid and triple hybrid than in single hybrid.

关 键 词：不结球白菜 三交种 双交种 单交种 杂种优势 

分 类 号：S634.3[农业科学—蔬菜学]