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CMS in Brassica napus and three-line hybrid breeding research


Support system. Education with its turn with the force of the CMS 212A high-performance, wide adaptability, disease resistance, winter rape area is off the cultivation of high-quality three-line hybrid CMS excellent material. In rapeseed breeding, parental option is to determine the breeding success and failure. And in terms of quality breeding, canola with fewer resources at home and abroad, China has bred the majority of double-low varieties of close genetic relationship. In this study, the quality of the existing recovery system, resistance, adaptability, combining ability and other factors, the recovery system for the four improved methods of research. The results show that the use of more complex crossbreeding parental restorer of the more obvious effects,vibram five fingers outlet, improved restorer l16C, 1102C, economic quality traits, adaptability, with force, has been in production played an important role. Years of breeding practice has shown that parents directly affect the size of the genetic differences between the strength of hybrid advantage, choose the larger genetic differences between parents for hybridization is to obtain strong advantage of the hybrid basis. In this study 212A as female, and improved recovery line hybrid, which have shown strong advantages, such as No. 6 oil Shaanxi, Shaanxi oil 8. The results show that the introduction of new genetic resources, especially the use of germplasm is an excellent breeding high-yield, high-quality,herve leger toronto, disease-resistant three-line hybrid effective way. References: [1] FU Ting-Dong. And utilization of rapeseed hybrid breeding [M]. Wuhan: Hubei Science and Technology Press, 1995. [2] Mo, H. P × q model combining ability analysis [J]. Jiangsu Agricultural College, 1982,3 (3): 5l ~ 57. [3] Chen Yongde, FU Ting-Dong. Cytoplasmic male sterile Brassica napus study of genetic effects [J]. China Oil, 1989 (3) :5-9. [4] Liu Chuangshe, Dongzhen Sheng, Jing Jun-Sheng, et al. Brassica napus (CMS) restorer line of quality improvement method [J]. Northwest Agricultural University, 1998,7 (1) :38 --- 40. BreedingofCMSthreelinesandhybridsinBrassicanapusL. LIUChuang-she. LIUXuan-xia. DONGJun-gang, DONGZhen-sheng, LIHong-bing. YANZi-bin, XIEFang-ning (ResearchInstituteofIndustrialCrop,tods shoes outlet, NorthwestSci-TechUniversityofAgricultureandForestry,Salvatore Ferragamo outlet, Yangling712100, mouth) Abstract: AseriesofinbredlineswhichadapttoShaanxiprovincewer edevelopedbycontinuousselectionofcuhivarsorlinesfr omYangziriverareainBrassicanapusL. Usingthesematerialsastest-crossingandbackcross-ingparents, manysterilelinessuchas212A,Beats By Dre Headphones, 218A, 159Awereobtainedwith100% ofsterileplantandabove95% degreeofsterility. Restorers116C, 1102Cwithsingleordoublelowwerederivedfromdescendan tsofmulti-piecross. Manycombinationetweenabovesterilelinesandrestorers wereobservedthentwohybridsShannyouNo. 6andShannyouNo. 8werebred, andtheyapprovedandreleasedbyShannxiProvinceCropVar ietyApprovalCommitteeandNationalCropVarietyApprova lCommittee. Keywords: BrassicanapusL. ; CMS; Hybrid
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