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以双低隐性核不育系1757A为母本与常规双低品系601杂交,经威宁夏繁加代,于F3代自交株行中发现6株不育、3株可育、3株半不育的株行,经4年8代选育,育成了不育株率达75%左右的株行材料,并保持原隐性核不育系不育性稳定彻底、恢复源广等特点;该材料中的可育株能使其它育性分离为1∶1的隐性核不育株达到并保持75%左右不育株率的育性分离,同时它具有低芥酸、低硫甙的品质性状,为优质杂交油菜育种提供了一个新不育源,丰富了细胞核不育基因库。
The double recessive nuclear sterile line 1757A was used as the female parent to cross with the conventional double low yielding line 601. Six crosses were found in F1 selfed in F3 generation, which were sterile, 3 fertile and 3 semi-sterile After 8 generations of breeding for 4 years, the male sterile line was bred with about 75% of sterile lines. The sterility of the original recessive male sterile lines was maintained stable and the recovery was wide. Fertile plants in the material can separate other fertility into 1: 1 recessive nuclear sterile plants to achieve and maintain fertility rate of about 75% of sterile plants, at the same time it has low erucic acid, low glucosinolate quality Traits, providing a new sterile source for breeding of high quality hybrid rape and enriching the gene pool of nuclear infertility.