Abstract:

In order to explore the potential advantages of ‘Chuanmai 614’, and better serve production and application, this study analyzed its yield performance. Using 3-year regional trial data, the yield, stability and adaptability of ‘Chuanmai 614’ were studied using the analysis method of multi-year and multi-point comparison test and the GGE biplot model. The results showed that the average yield of ‘Chuanmai 614’ was 6031.50 kg/hm², ranking second, with good stability and adaptability to multiple environments. In the production experiment, the average yield of ‘Chuanmai 614’ was 7031.55 kg/hm², which ranked the first, and there was an increase of 8.79% compared to the control. Among the GGE biplot model analysis, the ‘variety with highest yield in different places’ functional diagram indicated that ‘Chuanmai 614’ had high production and good adaptability in Dazhou, Neijiang, Nanbu, Shuangliu, and Zhongjiang; the functional diagram of ‘high yield and stable yield’ showed that among all the varieties, ‘Chuanmai 614’ had the highest yield and good stability. The GGE biplot chart with concentric circles indicated that ‘Chuanmai 614’ had good yield and stability. Overall, ‘Chuanmai 614’ is a new nutrient efficient variety with good yield and stability.

Key words: nutrient efficient variety, Chuanmai, GGE biplot model, high yield, stable yield, adaptability, breeding