不同细胞质类型杂交稻组合产量及相关性状配合力  

Study on combining ability of yield and related traits of hybrid rice with different types of cytoplasm

作　　者：朱旭东[1] 赵菊[1] 严钦泉[1] 周清明[1] 彭灵佳[1] 肖敏[1] 曾晓定[1] 彭国栋[1] 

机构地区：[1]湖南农业大学农学院,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2009年第4期352-356,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省"十一五"科技重大专项(2006NK1001);湖南省教育厅项目(07C361)

摘　　要：选用6种不同细胞质类型的10个不育系和10个恢复系,采用不完全双列杂交配制100个组合,按细胞质类型分类,对产量及相关性状的配合力进行分析.结果表明:不同细胞质类型组合的单株有效穗、株高、穗长、每穗总粒数、每穗实粒数等5个性状主要受基因加性效应的影响,单株产量和千粒重受基因加性效应和非加性效应的共同影响,基因加性效应的作用大于非加性效应,结实率主要受基因非加性效应的影响.株高、穗长、每穗总粒数、每穗实粒数、结实率和千粒重等6个性状主要受不同细胞质类型一般配合力的影响,单株有效穗和单株产量主要受恢复系一般配合力的影响.单株有效穗、株高、穗长、每穗总粒数、每穗实粒数、千粒重和产量7个性状的狭义遗传力较高,结实率性状的狭义遗传力较低.同一亲本不同性状间和同一性状不同亲本间的一般配合力表现也有较大的差异.特殊配合力在不同细胞质类型所配杂交组合间及同一细胞质类型杂交组合不同性状间存在明显的差异.t： Ten male sterility lines and ten restorer lines were chosen to analyze the combining ability of yield and related traits classified as 6 different types of cytoplasm by the way of（NC Ⅱ ）mating design. The results showed that the number of panicles, plant height, panicle length, grain number of panicle, full grain of per panicle of different types of cytoplamsic combinations were mainly affected by the additive effects. The weight of 1 000 grains and yield one single plant were affected by the additive effects and non-additive effects together, and the additive effects were greater than non-additive effects. The seed setting rate was mainly affected by the non-additive effects. The plant height, panicle length, grain number of panicle, full grain of per panicle, seed setting rate and weight of 1000 grains were affected by the general combining ability of different type of cytoplasms in male sterility lines. The number of panicles and yield of one single plant were affected by the general combining ability of restorer lines. The heritabilities in narrow sense are high for the number of panicle, plant height, panicle length, grain number of panicle, full grain of per panicle, weight of 1000 grains and yield. The heritabilities in narrow sense are low for the seed setting rate. There was a relative difference in the general combining ability among different traits of the same parent and the same traits of different parents. The specific combining ability differs greatly in the hybrid combinations of different type of cytoplasmic male sterility and among different traits of the hybrid combinations with the same type of cytoplasmic male sterility.

关 键 词：杂交稻 细胞质类型 产量 配合力 

分 类 号：S511.035.1[农业科学—作物学]