摘要
用粳稻不育系矮选A和粳型光敏核不育系6086S、6172S、6334S、6339S与皖恢31等9个恢复系作5×9不完全双列杂交,估算了主要农艺性状的配合力。结果表明:杂种性状主要受亲本一般配合力的作用,用亲本一般配合力效应可以预测杂种性状表现。6086S、6172S不仅主要农艺性状的一般配合力效应优于矮选A,而且其特殊配合力方差大。恢复系以培C312和皖恢31为优。本研究初步鉴定出6172S/培C312和6086S/皖恢31两个杂交组合。
Combinig ability of eight agronomic characters was estimated in male-sterile line Ai-xuan and photoperiod sensitive genic male-sterile lines of japonica rice including 6086,6172, 6334, 6339 in incomplete diallel cross with 9 R-lines as male parents. Observa-tion was made on the characters of plant height, panicle per plant, panicle length,number of grains per panicle, full grains per panicle, percentage of full grains, grainweight per plant and 1000-grain weight. The results indicated that characters of hybridrice are mainly influenced by the general combining ability of parents and can be pr-edicted by it. The general combining ability of main agronomic characters in 6086,6172 were high as compared with Aixuan A,and variance of their specific combinngability was big. Restoring lines Pei C 312 and Wanhui 31 Were best. Desirable combi-nations are 6172S/Pei C 312 and 6086S/Wanhui 31.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1990年第4期429-434,共6页
Journal of Huazhong Agricultural University
关键词
水稻
光敏核不育
配合力
杂交稻
rice
photoperiod sensitive genic male-sterile line
combining ability
