香型优质水稻三系不育系德香074A产量性状配合力分析  

Analysis on Combining Ability of Yield Traits of Aromatic and High Quality Rice Cytoplasmic Male Sterile Line Dexiang 074A

作　　者：曹应江[1] 游书梅[1] 蒋开锋[1] 张涛[1] 杨莉[1] 杨乾华[1] 秦俭[1] 李庚觅 郭小蛟 万先齐[1] 罗婧[1] 李昭祥[1] 高磊[1] 唐彬 郑家奎[1] CAO Yingjiang;YOU Shumei;JIANG Kaifeng;ZHANG Tao;YANG Li;YANG Qianhua;QIN Jian;LI Gengmi;GUO Xiaojiao;WAN Xianqi;LUO Jing;LI Zhaoxiang;GAO Lei;TANG Bin;ZHENG Jiakui(Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences/Luzhou Branch of National Rice Improvement Center/Key Laboratory of Southwest China Rice Biology and Genetic Breeding,Ministry of Agriculture and Rural Affairs,Deyang,Sichuan 618000,China)

机构地区：[1]四川省农业科学院水稻高粱研究所/国家水稻改良中心泸州分中心/农业农村部西南水稻生物学与遗传育种重点实验室,四川德阳618000

出　　处：《中国稻米》2020年第3期84-87,共4页China Rice

基　　金：国家重点研发计划(2017YDF0100205,2016YFD0101101);四川省重点研发计划(2016NY 0028)。

摘　　要：利用香型高配合力三系不育系德香074A及其他4个生产上应用面积较大的不育系(K22A、冈46A、Ⅱ-32A和K17A),按照NCⅡ设计的原理,分别与明恢63、成恢727、泸恢H103、泸恢8258和蜀恢527等5个恢复系杂交,构建双列杂交群体,分析了单株产量、单株有效穗数、单穗质量、每穗颖花数、每穗实粒数、结实率、千粒重等7个产量相关性状的遗传力及配合力。结果表明,德香074A共有6个性状一般配合力效应值为正值,分别是单株产量(9.04)、单株有效穗数(6.27)、单穗质量(3.29)、每穗实粒数(0.15)、结实率(1.40)和千粒重(2.40),是供试不育系中正值性状最多的不育系。7个性状中,千粒重的遗传力最强,广义和狭义遗传力分别为94.69%和80.69%,表明这一性状不易受环境的影响。In this study,according to North Carolina design II(NC II Design),the aromatic cytoplasmic male sterile line Dexiang 074A and four other sterile lines(K22A,Gang 46A,II-32A and K17A)were used,crossed with five restorer lines,such as Minghui 63,Chenghui 727,Luhui H103,Luhui 8258 and Shuhui 527,respectively,constructing a double-row hybrid population,the combining ability of yield and relate traits were analyzed.Seven traits including yield per plant(YP),effective panicles per plant(EP),weight per panicle(WP),spikelets per panicle(SP),full grains per panicle(FGP),seed setting rate(SSR)and 1000-grain weight(TGW).The results showed that Dexiang 074A was the most positive trait in the sterile line,there were 6 traits general combining ability effect value was positive,YP was 9.04,EP was 6.27,WP was 3.29,FGP was 0.15,SSR was1.40,TGW was 2.40.Among the 7 traits,TGW had the strongest heritability,and the broad heritability and narrow heritability was 94.69%and 80.69%respectively,which indicating that this trait is not susceptible to environmental changes.

关 键 词：香型不育系 德香074A 产量性状 配合力 

分 类 号：S511[农业科学—作物学]