Breeding and Application of a New Hybrid Brassica napus Variety with High Oil Content,Baoyou 187
[Objective]The high-yield,high-oil,and density-tolerant rapeseed varieties were cultivated to provide the germplasm selection for the application of rapeseed varieties with high oil,high yield and high quality.[Method]The recessive nuclear sterile two-line,D418AB,was used as female parent,and the restoration line,YD84R,as the male parent by Rape Research Institute of Guizhou,then the new hybrid Brassica napus variety,Baoyou 187(Registration number from Ministry of Agricultural and Rural Affairs of PRC:GPD Youcai[2023]520162),with high oil content,low erucic acid and low glucosinolate content was bred in 2023.[Result]In the regional test of the upper reaches of the Yangtze River,the average yield of Baoyou 187 was 207.7 kg/667m2,which was 4.09%higher than CK(Rongyou 18).The average oil production was 104.6 kg/667m2,which was 22.18%higher than CK.The average growth period was 215 days.In the regional rest of the Yangtze River,the average yield of Baoyou 187 was 210.3 kg/667m2,which was 7.32%higher than CK(Huayouza 50).The average oil production was 107.6 kg/667m2,which was 10.29%higher than CK.The average growth period was 215 days.Baoyou 187 has been tested by the Quality Supervision,Inspection and Testing Center for Oilseeds and Products of the Ministry of Agriculture and Rural Affairs,and its erucic acid content was 0.05%,glucosinolate content was 20.45 μmol/(g·cake)and the oil content was 51.94%.[Conclusion]Baoyou 187 has the characteristics of resistance to Sclerotinia sclerotiorum,high yield,tolerance to dense planting and high oil content,making it suitable for promotion and application in winter rapeseed areas such as Guizhou,Sichuan,Chongqing,Hunan,Hubei,and Jiangxi.
Brassica napusBaoyou 187high oil contentnew varietyrecessive nucleic male sterilityerucic acidglucosinolate
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