摘要
中４１３是从５０４６５中经系统选育而成的广亲和恢复系。与籼型测验种ＩＲ３６、南京１１测交，Ｆ１结实率分别为７５．５％和８０．０％；与粳型测验种秋光、Ｂａｌｉｌｌａ测交，结实率分别为７１．４％和５３．２％。对野败、矮败、Ｄｉｓｓｉ、马尾粘等胞质不育系均具有较强的恢复能力。以中４１３为广亲恢系而配制的系列组合均有较强的杂种优势，在不同地区、不同季节种植均比对照汕优６３和汕优１０号增产或极显著增产。作单季种植，亩产可达７００ｋｇ以上；作双晚栽培，亩产可达６００ｋｇ左右。表现为秧苗素质好，生长势旺，耐肥抗倒，穗大，叶面积系数大，物质生产力高，穗多，库源关系协凋。中４１３系列组合不仅表现较强的杂种优势，而且较好地克服了籼粳亚种间优势利用中Ｆ１结实率偏低、籽粒不饱满、植株偏高和生育有期偏长等障碍。
Zhong 413 was a wide compalible restorer line selected from 50465. Using Zhong 413 as female parent crossed with indica testers IR36. Nanjing 11 and japonica testers Akihikari. Balilla. the spikelet fertilily of F1 hybrid was 75.5%. 80. 8% and 71.4%. 53.2% respectively. Meanwhile Zhong 413 had strong restorig ability to various CMS lines such as Zhenshan 97A. Xieqingzao A,D-shan A and Maxie A. and the obvious heterosis of these hybrids was shown in rapid growth. large leaf area index, bigger panicles. higher dry matter production. resistance to lodging. as well as over yielding significantly than the recent commercial hybrid rice Shanyou 63 and Shanyou 10 in different regions and seasons. Zhong 413's hybrid combinations not only had superior heterosis but also could overcome the problems such as the lower F1 fertility. insufficiently filled grain. excessive plant height and long growth duration which happened usually in inter-subspecies hybrid rice.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1994年第4期193-199,共7页
Chinese Journal of Rice Science
基金
浙江省"8812"计划
国家"八五"科技攻关超高产水稻新组合选育资助
关键词
广亲和性
杂种优势
水稻
三系配套
inter-subspecies hybrid vigour
restoration ability. wide compatibility
