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水稻待测粳型亲籼系的杂种优势研究
引用本文:陈跃进,丁效华,张桂权,卢永根.水稻待测粳型亲籼系的杂种优势研究[J].华南农业大学学报,2002,23(4):1-4.
作者姓名:陈跃进  丁效华  张桂权  卢永根
作者单位:1. 佛山科学技术学院农牧学院
2. 华南农业大学植物分子育种研究中心,广东,广州,510642
基金项目:国家“8 6 3”计划项目 (Z16 - 0 2 - 0 1)
摘    要:培育粳型亲籼系可能是克服籼粳杂种不育性,利用籼粳杂种优势,提高水稻产量的有效途径。本文研究了待测粳型亲籼系与籼稻杂交的F1杂种优势。试验表明,第一,粳型亲籼系G3005-4-1与籼稻杂交,其F1理论产量中亲优势强大,而其他亲籼性好而粳型性强的系统与籼稻杂交,其F1理论产量中亲优势弱,第二,粳型亲籼系G3005-4-1与粘稻杂交,F1主要表现为穗大粒多,结实正常,并且不存在生育期偏长和植株偏高的现象。第三,F1理论产量中亲优势与双亲平均值和分子标记测得的双亲相似系数均无显著相关关系。

关 键 词:水稻  待测粳型  亲籼系  杂种优势
文章编号:1001-411X(2002)04-0001-04
修稿时间:2002年1月21日

Studies on Heterosis of F1 Hybrids in Candidate Indica-Compatible Japonica Lines in Rice (Oryza sativa L.)
CHEN Yue jin,DING Xiao hu,ZHANG Gui quan,LU Yong gen.Studies on Heterosis of F1 Hybrids in Candidate Indica-Compatible Japonica Lines in Rice (Oryza sativa L.)[J].Journal of South China Agricultural University,2002,23(4):1-4.
Authors:CHEN Yue jin  DING Xiao hu  ZHANG Gui quan  LU Yong gen
Abstract:Developing the indica compatible japonica lines (ICJLs) in rice may be an important procedure of overcoming the hybrid sterity to utilize the heterosis of F 1 hybrids between indica and japonica for raising rice grain yield. The heterosis of F 1 hybrids between the candidate ICJLs and indica varieties (lines) was identified. The results were as follows: 1.The F 1 hybrids between ICJL G3005 4 1 and indica varieties (lines) had great mid parent heterosis in the theoretic grain yield but the other indica compatible weak japonica lines and indica varieties (lines) had little mid parent heterosis. 2.The F 1 hybrids with great mid parent heterosis in the theoretic grain yield between ICJL G3005 4 1 and indica varieties (lines) had the great total grains and the great filled grains per panicle, normal seed set rate and proper growth duration and proper plant height. 3.The mid parent heterosis of F 1 hybrids in the theoretic grain yield was not correlated to parent average and the parent similitude coefficient identified by SSR(simple sequence repeat) markers at significant level.
Keywords:indica compatible japonica lines  heterosis of F  1 hybrids  Oryza sativa  L  
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