杂交稻新组合主要农艺性状配合力分析及利用评价  

Analysis on Combining Ability and Utilization of Major Agronomic Characteristics in Hybrid Rice Combination

作　　者：王丽[1] 赵德明[1] 林纲[1] 江青山[1] 杨从金[1] 

机构地区：[1]四川省宜宾市农业科学院,四川宜宾644000

出　　处：《江西农业大学学报》2012年第2期208-212,219,共6页Acta Agriculturae Universitatis Jiangxiensis

基　　金：四川省科技厅科技支撑项目(20110104);宜宾市科技局水稻品种选育专项(200805101)

摘　　要：利用引进的5个不育系(全丰A、谷丰A、天丰A、广抗13A、蓉18A和Ⅱ-32A)和自育的6个恢复系(YR1577、YR2292、YR3003、YR4245和YR7633)进行不完全双列(NCII模式)杂交,配置的30个杂交组合。对F1代农艺性状的配合力进行分析,结果表明:穗长、穗实粒数、结实率、千粒质量和单株产量的特殊配合力高于一般配合力,说明大多数农艺性状受非加性效应影响大;亲本方面,穗长、有效穗数、穗总粒数、穗实粒数、千粒质量的性状表明恢复系对后代的影响大于不育系。综合考虑配合力和遗传力效应,选育高产量的杂交组合以Ⅱ-32A/YR2292和广抗13A/YR7633优势较为明显。An analysis on the combining ability of the agronomic characters of 6 male sterile lines（QuanfengA,GufengA,TianfengA,Guangkang13A,Rong18A andⅡ-32A） and 5 restorer lines（YR1577,YR2292,YR3003,YR4245 and YR7633）of 30 hybrids were conducted by means of incomplete diallele cross（NCII design）.The agronomic characteristics of F1 generation were analyzed,The results showed that the specific combining ability（SCA） of panicle length（PL）,spikelets panicle number（SN）,seed setting rate（SSR）,1000-grain weight（GW） and the grain weight of per plant（GWP） was higher than that of general combining ability（GCA）,which indicated that most of the characters were mainly affected by non-additive effect;the characters of panicle length,effective panicle number（EPN）,full spikelets panicle number（FN）,spikelets panicle number,1000-grain weight were influenced by restorer lines more greatly than by sterile line.Considering their combining ability and heritability,Guangkang13A/YR7633 andⅡ-32A/YR2292 are high-yield hybrid combinations.

关 键 词：杂交优势 不育系 恢复系 一般配合力 特殊配合力 

分 类 号：S511.035.1[农业科学—作物学]