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绵油 1 1是四川省绵阳市农科所以自育的胞核两用系绵ⅠＡＢ -2与低芥品系 82 -1 1 -2 1转育成的ＰＡＢ -1和绵恢 6号配制而成的甘蓝型两系油菜杂交新品种。 2 0 0 0年 4月通过四川省农作物品种审定委员会审定。1 特征特性该品种苗期长势中等 ,叶片较小 ,绿色 ,叶缘缺刻浅。花期生长繁茂 ,花黄色 ,花粉充足。植株为中矮秆 ,花序较短 ,结角密 ,角果中长。单株有效角果 45 0个左右 ,每角 1 8粒左右 ,千粒重 3.8ｇ左右。绵油 1 1属中熟偏早甘蓝型杂交油菜 ,全生育期比中油 82 1略早 2～ 3ｄ。据农业部油料及制品质检中心测定 ,含油量 (干基 ) 4… 相似文献
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双低甘蓝型油菜新型核不育系绵7AB-4的遗传研究Ⅰ.育性表现的初步研究 总被引：3，自引：0，他引：3
利用甘×白杂交F2产生的核不育株,培育出了双低甘蓝型油菜新型核不育系绵7AB-4。该不育系不育率高达70%～90%,不育性彻底而稳定,不受环境条件影响,其恢复源广泛,已培育出高产杂交组合绵油12号。本文对该不育系在育性遗传上的特性进行了初步研究,并对其利用方法与途径进行了讨论。 相似文献
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基于体细胞组织培养的甘蓝型油菜核三系保持系绵7MB-1亲本繁殖与F_1制种(英文) 总被引：1，自引：0，他引：1
[Objective] The aim was to study the reproduction of the three-line genic male sterile (GMS) line parent Mian 7MB-1 (B.Napus L.) and the seed production of F1 through somatic tissue culture. [Method] Through hybridization, a new breeding material Mian 7MB-1 in three-line genic temporary maintainer line propagated by tissue culture was used to improve the sterile plant rate of rapeseed in dual-purpose recessive GMS line, such as Mian 7AB type, S45AB type, and etc. And then the variety comparative test was performed. [Result] In order to avoid some fertility restoration phenomena occurring during the process of self-reproduction, Mian 7AB was propagated in bulk with somatic tissue culture of temporary maintainer line plant stem. The propagated temporary maintainer line seedlings were applied to the breeding and seed production of net room male sterile line parent, promoting the sterile plant rate of the male sterile line parent to 91.7%-93.5%. The male sterile line parents per hectare were enough for the seed production of hybrid F1 in 7 500-15 000 hm2. [Conclusion] Compared with the original dual-purpose GMS line, the seed production ultilizing male sterile line with high sterile plant rate greatly reduced the labor, significantly improved the seed yield, ensuring the seed quality and forming a perfect breeding and seed production system. 相似文献
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