摘要
明恢63是以IR30×圭630杂交,于1981年春育成的,是我国人工制恢研究中第一个取得突破的优良恢复系。其恢复力强、恢复谱广、配合力好、综合农艺性状优良、抗稻瘟病、制种产量高。它既是我国杂交水稻组合配组中应用最广、持续应用时间最长、效益最显著的恢复系,又是我国新恢复系选育中贡献最大的优良种质。1984~1996年以明恢63恢复系配制的杂交稻组合有18个,累计推广面积达6560万hm2。其中汕优63累计推广面积5267万hm2。以明恢63为主体亲本育成的一大批新恢复系配制的组合中,通过省级审定的达17个。文章根据近几年的推广实践、体会与有关统计数据,系统论述了该恢复系的选育过程、特征特性,及其利用价值。
Minghui 63,the first breakthrough in elite restoring lines in China by artificial restoration research,was bred by crossing IR30 with Gui 630 in spring 1981.Minghui 63 has such characteristics as strong ability in restoration,broad in restoring spectrum,high combining ability,fine comprehensive argonomic characters,resistance to rice blast and high yield in seed production.It is not only a good restoring line for prominent benefit,with the widest areas and the longest duration of continued utilization in Chinese hybrid rice production,but also a fine germplasm of the greatest contribution in selecting new restoring lines.In 1984-1996,18 hybrid rice combination from restoring line Minghui 63 had been developed to an accumulated area of 65 60 million hm 2, among which Shanyou 63 had an area of 52 67 million hm 2.A series of new restoring lines were developed from Minghui 63 as the main parent,among which 17 combinations were examined and approved by the provincial authorities concerned.Based on past years of extension practice,experience and statistical data systems, the selection procedure,characteristics and utilization value of this restoring line was described.
出处
《福建农业学报》
CAS
1998年第4期1-6,共6页
Fujian Journal of Agricultural Sciences
关键词
恢复系
明恢63
选育
水稻
籼稻
Restoring line
Minghui 63
Selection and breeding
Utilization