水、陆稻杂种优势研究  

Study on Heterosis Between Paddy Rice and Upland Rice

作　　者：邓先能[1] 周家武[1] 徐鹏[1] 胡凤益[1] 李静[1] 陶大云[1] 

机构地区：[1]云南省农业科学院粮食作物研究所,昆明650205

出　　处：《西南大学学报（自然科学版）》2009年第10期23-29,共7页Journal of Southwest University(Natural Science Edition)

基　　金：云南省自然科学基金资助项目(2006PG09);科技部973前期专项资助项目(2006CB708207);洛克菲勒基金资助项目(2005SE003);农业部948资助项目

摘　　要：选用2个水稻品种和6个陆稻品种进行双列杂交,对各主要产量性状进行配合力及杂种优势分析.结果表明:各品种农艺性状的一般配合力表现差异较大,各杂交组合农艺性状的特殊配合力表现差异也较大.杂种优势分析表明:陆稻品种之间杂交有不同的杂种优势表现,水、陆稻杂交也能够获得较高的超亲优势和平均优势.说明陆稻可以作为改良水稻品种产量或个别农艺性状的资源加以利用.水稻品种也可以在陆稻品种产量或个别产量性状改良中发挥重要的作用.Diallel crosses were made with 2 paddy rice cultivars and six upland rice cultivars and the combining ability and heterosis of their yield-contributing characters were analyzed. The results showed that the general combining ability of various agronomic characters of the parent cultivars and the special combining ability of the cross combinations were fairly significant. Heterobeltiosis and average heterosis were noticed not only between different upland rice cultivars but also between upland rice cultivars and paddy rice eulti vars, indicating that upland rice cultivars can be used as germplasm resources to improve the yield or agronomics traits of paddy rice cultivars and, similarly, paddy rice cultivars can play an important role in the improvement of yield or agronomic attributes of upland rice cultivars.

关 键 词：水稻 陆稻 配合力 杂种优势 

分 类 号：S511[农业科学—作物学]