Heterosis analysis of recessive genetic all sterile line in Brassica napus L.
It is the advantage that the recessive epistasis GMS may gain all sterile line(ASL) through crossing homozygous two-type line(HTL)with temporary maintainer. Triple-cross hybrids (TCH) and single-cross hybrids (SCH) were obtained by crossing ASL and HTL with restoring line respectively, and their heterosis was compared. The result showed that majority of characters of TCH,such as plant height, location of effective branches, pods of main inflorescence and seeds of pod, were superior to the SCH, and TCH was superior to SCH in resistance to Sclerotinia sclerotiorum and yield, too. At the same time, these characters of the heterogeneous TCH were better than those of homologous TCHL ASL was more excellent than HTL and CMS in the yield of hybrid reproduction and spontaneous pollination of sterile line, as the result, the cost of hybrids reproduction reduced greatly. So hybrid reproduction of the TCH of recessive genetic ASL was convenient and its cost also was lower, thus the TCH has vast application prospect.
B. napus L all sterile line temporary maintainer line Triple-cross hybrid
ZHANG Pu LI Dianrong TIAN Jianhua
Hybrid Rapeseed Research Center of Shaanxi Province, Shoanxi Rapeseed Branch of National Oil Crops Genetic Improvement Center, Dali 715105, China
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
111-113
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）