陆地棉永久IF_2群体的品质性状杂种优势及相关关系研究  

A Study on the Helerosis of the Fiber Quality Traits and Their Correlation in Upland Cotton-Immotalized F_2 Populations

作　　者：王保勤[1] 李宾[1] 李俊文[2] 刘书梅[1] 贾新合[1] 

机构地区：[1]郑州市农林科学研究所,河南郑州450005 [2]中国农业科学院棉花研究所,河南安阳455000

出　　处：《江西农业大学学报》2016年第1期48-53,共6页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家高技术研究发展计划(863计划)项目(2012AA101108-02-12);郑州市院士工作站建设计划(131PYSGZ209)~~

摘　　要：通过对两年3个环境下陆地棉永久IF2群体的品质性状的杂种优势表现及其性状之间的相关性进行分析,研究永久IF2群体品质性状关系,为生产上合理运用永久群体提供科学依据。结果表明,永久IF2群体的品质性状纤维长度、整齐度、纤维强度在不同环境下都具有正向中亲杂种优势,但是优势不大,而马克隆值、伸长率在不同环境下的中亲优势有正向也有负向。单株籽棉产量与纤维长度、马克隆值、整齐度极显著正相关,与伸长率呈极显著负相关,永久群体纤维强度与整齐度具有明显的正向竞争优势。The heterosis of fiber quality traits and their correlation of the immortalized F2 population in three environments,were analyzed to provide the scientific basis for the rational use of the permanent population in production. The results showed that the quality characters of fiber length,fiber strength,uniformity of permanent IF2 populations had the positive mid parent heterosis in different environments,but the advantage was not big.The heterosis of micronaire value,and that of elongation were positive or negative.The yield had a highly significant positive correlation with fiber length,uniformity,micronaire values and had an extremely significant negative correlation with elongation.The fiber strength and uniformity of the permanent population had a positive and obvious competitive advantage.

关 键 词：棉花 IF2群体 RIL群体 品质性状 杂种优势 

分 类 号：S562[农业科学—作物学]