摘要
选用六个不同类型光敏核不育水稻,在其五叶期后给予不同时间的光照处理,观察其抽穗期的差异。结果表明:在光长由14.5小时缩短到10.0小时,供试不育系的抽穗期提早6-41天;促进不同品系间提早抽穗的临界光长存在差异:农垦58S,中78-5S,25169S,5-12S为12.5小时,W6417S为13.5小时,W6154S的则不甚明显。
Heading date of 6 strains of photoperiod-sensitive male sterile rice was compared underdifferent treatments of photoperiod length starting on the 5-leaf stage. The results showedthat reducing the light-length from 14.5 to 10.0 hr could advance heading dates by 6-41days. The critical length of light period required for accelerating heading varied greatlyamong these strains. They were: 12.5 hr for Nongken 58S, Zhong 78-5S, 25169S and5-12S, 13.5 hr for W6417S. The reduction of photoperiod length had no obvious effecton heading date for W6154S.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1990年第2期112-115,共4页
Journal of Huazhong Agricultural University
基金
国家自然科学基金
关键词
光敏核不育
水稻
临界光长
抽穗期
Hubei photoperiod-sensitive genic male-sterile rice
critical light-length required for accelerating
heading date
