中日粳三系交叉配组杂交种的鉴定与评价  

Evaluation of Three-line Japonica Rice Hybrids Derived from the Parents of China and Japan

作　　者：汤述翥[1] 张宏根[1] 张祖建[1] 刘巧泉[1] 梁国华[1] 严长杰[1] 朱庆森[1] 顾铭洪[1] 

机构地区：[1]扬州大学江苏省作物遗传生理重点实验室/教育部植物功能基因组学重点实验室,江苏扬州225009

出　　处：《杂交水稻》2010年第1期60-66,共7页Hybrid Rice

基　　金：国家科技支撑计划项目(2006BAD01A01-7);江苏省高技术研究计划招标项目(BG2004302)

摘　　要：中、日双方通过交换粳稻不育系,分别与各自的恢复系配组,杂种F1在中国扬州和日本磐田鉴定,结果表明,引进日本优质不育系与中国恢复系配组,由于亲本地理距离和亲缘关系较远,有利于提高杂交粳稻的优势,且由于日本不育系米质优良,也有助于杂种品质的提高;利用广亲和粳稻不育系与籼稻恢复系配组是实现三系法亚种间杂种优势利用的可行途径之一。Under a Sino-Japanese collaborative project from 1998 to 2002, a number of japonica cytoplasmic male sterile lines （ CMS lines） from both sides were exchanged and used to produce Fl hybrids by crossing with local restorer lines （ R lines） of the other side. The hybrids were planted at both locations, one at Yangzhou of China and the other at Iwata of Japan, to evaluate their performance in major characters including grain yield and quality. The results showed that the F1 hybrids derived from the CMS lines of Japan with fine grain quality and the R lines of China exhibited a stronger heterosis in grain yield and a better grain quality than those hybrids derived from both parents of China, because the former had a wider geographical distance between parents, which is favorable to increase of heterosis, and it had also fine quality CMS lines in parents, which is favorable to improvement of the grain quality of hybrids. Furthermore, it was also found that it would be a feasible approach to utilize the inter-subspeci- fie heterosis in rice by crossing japonica wide compatibility CMS lines with indica restorer lines.

关 键 词：杂交粳稻 中日亲本 地理远缘配组 产量 品质 

分 类 号：S511.03[农业科学—作物学] S334