6个籼型水稻光温敏核不育系异交特性的研究  

STUDIES ON OUTCROSSING CHARACTERISTICS OF 6 INDIA PHOTO THERMO SENSITIVE GENIC MALE STERILE LINES

作　　者：温圣贤[1] 杨书化[1] 李泽炳[1] 万经猛[1] 田亚雯[1] 

机构地区：[1]华中农业大学农学系,武汉430070

出　　处：《华中农业大学学报》1999年第5期401-404,共4页Journal of Huazhong Agricultural University

基　　金：湖北省科委九五攻关项目

摘　　要：以３２０４Ｓ、ＨＮ５Ｓ、８９０６Ｓ、安湘Ｓ、１１０３Ｓ和９４５１Ｓ等６ 个籼型核不育系为材料，对其异交性能进行了研究。结果表明：（１）６ 个核不育系的颖花开花率均高于对照珍汕９７Ａ；柱头外露率从高到低依次为１１０３Ｓ、珍汕９７Ａ（ＣＫ） 、３２０４Ｓ、安湘Ｓ、８９０６Ｓ、ＨＮ５Ｓ、９４５１Ｓ；８９０６Ｓ、安湘Ｓ、９４５１Ｓ午前花率比对照珍汕９７Ａ高，６ 个核不育系的平均张颖时间均比对照珍汕９７Ａ 短；（２） 柱头活力从大到小的顺序是：ＨＮ５Ｓ、１１０３Ｓ、安湘Ｓ、３２０４Ｓ、８９０６Ｓ、９４５１Ｓ；（３） 异交结实率从高到低的顺序是：１１０３Ｓ、８９０６Ｓ、ＨＮ５Ｓ、安湘Ｓ、９４５１Ｓ、３２０４Ｓ。Outcrossing characteristics of 6 Indica photo thermo sensitive genic male sterile lines(PGMS)(3204S,HN5S,8906S,Anxiang S,1103S,9451S) were studied. Results showed: (1)spikelet flowering rate of 6 PGMS were higher than that of Zhenshan 97A(CK); the stigma exsertion order of 6 PGMS in the sequence of decending was 1103S, Zhenshan 97A, 3204S,Anxiang S, 8906S, HN5S, 9451S; percentage of spikelet flowering before noon of 3 PGMS(8906S, Anxiang S, 9451S) was higher than that of zhenshan 97A(CK); the average spikelet flowering time of 6 PGMS remained shorter than that of Zhenshan 97A(CK); (2)stigma vigour order of 6 PGMS in the sequence of decending was HN5S, 1103S, 3204S, Anxiang S, 8906S, 9451S; (3)seed setting order by outcrossing of 6 PGMS in the sequence of decending was 1103S, 8906S, HN5S, Anxiang S, 9451S, 3204S.\;

关 键 词：水稻 籼型 光温敏核不育系 开花习性 异交结实率 

分 类 号：S511.03[农业科学—作物学]