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开展不同播种、摘薹方式对菜油两用型油菜‘国豪油5号’产量和经济效益的研究,为四川菜用型油菜高产高效栽培技术研究和示范提供理论依据。笔者研究了2种播种方式、4种摘薹方式对菜油两用型油菜‘国豪油5号’产量和经济效益的影响。结果表明,移栽油菜和直播油菜随着摘薹分枝的增加,菜薹产量增加而菜籽的产量减少,蕾期摘主序和一次分枝的方式收益最大。移栽油菜纯收入高于直播油菜。因此,‘国豪油5号’作为菜油两用型油菜使用,最佳的播种方式为移栽,最佳的采摘方式为蕾期摘主序和一次分枝。 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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