Studies on breeding of Yunhan strong gluten wheat varieties for drought resistance and high yield
In order to breeding the high- quality, high- yield, strong gluten and drought- resistant wheat varieties which are suitable for Huanghuai dry land of China, the research focused on the high yield and high quality breeding goal of strong gluten and high quality foreign germplasm usage. The author used strategies and methods like rational parent combination, adjusting the flowering for inter- breed, assistant selections with high molecular weight glutenin subunit protein molecular marker detections and measuring the quantity and quality of gluten, ecological-adaptation-oriented feature selection identification and ecological selection in multi- points for year. Alternative identification and selections in rain fed and irrigated land, strengthened systematic observation and comprehensive evaluation for better lines, and selections from better lines were conducted. The application of the systematic methods had solved the technical problems of bad adaptability to drought, heat, frost resistance, and maturity of foreign germplasms and hybrids with spring and winter varieties. The research bred a series of strong gluten wheat varieties which were represented by ‘Yunhan20410’, ‘Yunhan 618’, and which achieved the innovation improvement which changed the strong gluten to the strong and stable gluten. They raised yield by 2-10% compared with ‘Jinmai 47’and had more drought-resistance and more heat-tolerance. We obtained the combination of high yield and drought resistance with the strong gluten traits.
Li Xiurong; Chai Yongfeng; Zhao Zhiyong; Sun Laihu; Yao Jingzhen; Bi Hongyuan; Xi Jilong. Studies on breeding of Yunhan strong gluten wheat varieties for drought resistance and high yield. Chinese Agricultural Science Bulletin (2015) 31 (12) 29-35. [In Chinese with English abstract]