西南地区高油大豆资源现状及发展技术途径探索OA

Southwest China is a crucial soybean production region in China.A systematically analysis of the current status of high-oil soybean resources in this region,along with proposing corresponding development strate-gies,is of great significance for enhancing high-oil soybean production capacity and ensuring national food and oil security.In this study,the quality traits of 241 soybean varieties certified in four Southwest provinces from 1998 to 2024,as well as 196 soybean cultivars collected by our research team were examined.The results indicated that among the 437 soybean germplasms in Southwest China,179 were high-protein varieties,while only 20 were high-oil varieties.Yunnan Province ranked first in the number of high-oil varieties.Further analysis revealed that after Sichuan Province certified the first introduced high-oil variety,Fudou 1,in 2004,it was not until 2015 that Chongq-ing certified the second and third high-oil varieties,Yudou 3 and Xidou 9.The certification of high-oil varieties in Southwest China increased significantly after 2020.By assessing the intercropped soybean area and the planting ar-ea of compatible crops such as corn and tobacco in Southwest China,we identified considerable potential for ex-panding high-oil soybean cultivation.In the future,the high-quality development of high-oil soybeans in the region can be advanced through technical approaches such as optimizing cultivation practices,integrating conventional breeding with biotechnological methods.