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通过对黔油 2 AB与 40 19AB、117AB、陕 2 A间的恢保关系测定结果表明 :甘蓝型双低油菜黔油 2 AB与显性细胞核雄性不育系 40 19AB的保持性相近 ,但恢复关系不同 :黔油 2 AB与隐性细胞核雄性不育系 117AB的恢保关系存在着明显差异 ;黔油 2 AB与胞质雄性不育系陕 2 A保持系间互换保持后 ,其 F1 的不育株比例相对黔油 2 AB来说从 5 0 %提高到 85 %～ 90 % ,相对陕 2 A来说不育性的稳定性和不育度得到了明显加强 ,但二者的恢复关系不同。经试验结果研究分析表明 :黔油 2 AB的不育源与以上几大类型不育材料不同 ,是一种甘蓝型油菜双低新不育源
The results of the relationship between Qiangyou 2 AB and 40 19AB, 117AB and Shaanxi 2 A showed that the maintainence of 2 AB in Brassica napus was similar to that of dominant male sterile line 40 19AB, The relationship was different between Qiyou 2 AB and the recessive nuclear male sterile line 117AB. There was a significant difference between Qiyou 2 AB and the CMS line Shaan 2 A. F1 The proportion of sterile plants increased from 50% to 85% -90% relative to that of Qianyou 2 AB. The stability and sterility of sterile lines were significantly enhanced compared with that of Shaanxi 2 A, but the recovery relationship different. The results of the test showed that the male sterile lines of Qianyou 2 AB were different from those of the above-mentioned types of male sterile lines.