非洲引进水稻种质资源的鉴定与评价  

Identification and Evaluation on Africa Imported Rice Germplasms

作　　者：周雷[1] 李三和[1] 陈志军[1] 黄瑞[1,2] 刘凯[1] 闸雯俊[1] 杨国才[1] 胡刚[1] 焦春海[1] 游艾青[1] 

机构地区：[1]粮食作物种质创新与遗传改良湖北省重点实验室/湖北省农业科学院粮食作物研究所,武汉430064 [2]武汉大学研究生院,武汉430072

出　　处：《湖北农业科学》2015年第15期3593-3596,共4页Hubei Agricultural Sciences

基　　金：科技部国际合作项目(2011DFB31620);国家"973"计划项目(2013CBA01405);国家科技支撑计划项目(2011BAD35B02);国家"863"计划项目(2012AA101101);湖北省自然科学基金项目(2013CFB051)

摘　　要：对非洲引进的70份水稻种质资源进行了28个农艺性状和稻瘟病抗性的鉴定评价。结果表明,28个农艺性状的遗传多样性指数(He′)平均值为1.12;引进的非洲稻种表型具有丰富的变异,但是总体的遗传多样性不高。通过考察鉴定,初步明确其主要特性是红米多、品质优、高结实率和抗病性好。从这70份非洲稻种资源中筛选出16份优异资源,可供深入研究与育种利用。28 agronomic traits and blast resistance of 70 Africa imported rice germplasms were evaluated. The results showed that the average of diversity index （He＇） of 28 traits was 1.12. The phenotypic types of the rice germplasms were various, but the overall genetic diversity was not conserved perfectly. The main phenotypic characteristics of the 70 Africa rice germplasm were as following： more red rice, good quality, high seed setting rate and strong blast resistance. 16 outstanding accessions were screened out for further research and application of breeding in future.

关 键 词：非洲稻种资源 农艺性状 稻瘟病 特性评价 

分 类 号：S511[农业科学—作物学] S502.2