^(60)Coγ诱变豌豆M2农艺性状与产量多重分析  

Multiple Analysis of Agronomic Characters and Yield of Pea M_2 Induced by ^(60)Coγ

作　　者：欧阳裕元 杨梅[1] 项超 余东梅[1] Ouyang Yuyuan;Yang Mei;Xiang Chao;Yu Dongmei(Crop Research Institute,Sichuan Academy of A＇griculture Science,Chengdu 610066)

机构地区：[1]四川省农业科学院作物研究所,成都610066

出　　处：《中国农学通报》2018年第23期33-40,共8页Chinese Agricultural Science Bulletin

基　　金：国家食用豆产业技术体系项目“成都综合试验站”(CARS-09);四川省创新能力提升工程专项“60CO-γ射线辐照豌豆M2、M3突变效应研究”(2016QNJJ-007)

摘　　要：为了更好的发掘利用豌豆辐射诱变变异后代资源,本研究分别以3种不同复叶类型豌豆为材料,对豌豆诱变M_2代农艺性状进行相关分析、通径分析、主成分分析,明确豌豆诱变后代产量的决定因子。结果表明不同复叶类型豌豆诱变M_2的主要农艺性状的变异丰富,变异系数达0.171~0.8539;且结荚节数、单株荚数、单株粒数均与单株产量呈极显著正相关关系;通径分析结果证实,不同复叶类型豌豆诱变后代选择中,单株粒数及单株荚数对单株产量的影响均很大;主成分分析结果表明:单株荚数、单株粒数、结荚节数是高产型豌豆形态决定因子。豌豆诱变后代单株产量的主要决定因子依次为单株粒数、单株荚数、结荚节数,同时对百粒重给予足够重视。To better utilize the mutation progeny of pea irradiated by 60COγ, three different compound-leaves types of peas were used as material, agronomic characters of pea Me were studied with correlation analysis, path analysis and principal component analysis, the determination factors of the yield of pea irradiated by 60COγ was clarified. The results showed that the variation of the main agronomic characters of pea M2 was abundant. The variation coefficients were 0.171-0.8539. The pod number, pods per plant and grains per plant had an extremely and significantly positive correlation with yield per plant. The path analysis verified that in the selection of the mutation progeny of different compound-leaves types of peas, grains per plant and pods per plant had a great influence on yield per plant. The principal component analysis showed that pods per plant and grains per plant and the pod number were the morphological determinative factors for the high-type pea. The determinative factors of yield per plant of mutation progeny of pea were as following： grains per plant, pods per plant and the pod number, at the same time, we should pay attention to the hundred grain weight.

关 键 词：豌豆 Γ射线 M2代 农艺性状 产量 多重分析 

分 类 号：S335.2[农业科学—作物遗传育种]