摘要
1973年,本院发现芥菜型油菜雄性不育株后,经连续几年研究,1975年育成了欧新 A 不育系,欧新 B 保持系和74243—6恢复系,实现了芥菜型“三系”配套。多年来连续测定表明,育成的芥菜型“三系”表现育性稳定,欧新 A 不育系的不育株率达100%,单株自交结实指数平均在0.000—0.103之间。恢复株率为99.54～100%,F_1杂种有较强的苗期优势,也有种子产量和含油量优势。比芥菜型地方良种昆明高棵增产19.2～34.8%,含油量提高6.58～8.23%。芥菜型“三系”的育成,填补了我国芥菜型杂优利用的空白,势将推动芥菜型油菜杂优利用的研究。
A male sterile plant of mustard was found in 1973.After several years of study,ams line,European-Xinping A,a maintenance line,European-Xinping B,and arestoring line,74243-6,were successfully developed and a set of “three lines” was ac-complished in 1975.The set manifested high stability of sterility through successiveyears of study.The ms line European-Xinping A showed 100% sterility.The selfedseed-setting indexes averaged 0.000 to 0.103.The restored plant rate amounted to 99.54to 100%.There was fairly strong heterosis at the seedling stage with the F_1 hybrid,and heterosis also occurred in grain yield and oil content.The F_1 hybrid yielded19.2-34.8% more than the currently released elite variety Kunming-Gaoke,and was6.58-8.23% higher in oil content.Thus the gap that used to exist in the utilizationof mustard heterosis in our country has now been filled.In by the success of further re-search work in the utilization of heterosis of mustard.
出处
《作物学报》
CAS
CSCD
北大核心
1991年第1期32-41,共10页
Acta Agronomica Sinica
