Abstract:

To comprehensively evaluate the yield potential of the new wheat variety Xinmai 9813，this study systematically analyzed its yield performance，high-stability coefficient，coefficient of variation and adaptability based on data from the regional trials of the irrigated group in the southern part of the Huang-Huai winter wheat region under the national joint test program for winter wheat varieties during 2020-2022，as well as the production trial data collected in 2022-2023. The results showed that Xinmai 9813 achieved significant （p<0.05） yield increases compared with the control variety Zhoumai 36（secondary control：Zhoumai 18）. The average yield of Xinmai 9813 in the two-year regional trials reached 9 054.0 kg·hm^-2，representing a 6.54% yield increase over Zhoumai 18 and a 4.82% increase over Zhoumai 36. In the production trial，its average yield was 8 638.5 kg·hm^-2，6.97% higher than Zhoumai 36，with a 100% yield-increasing test site rate. Moreover，this variety possessed excellent agronomic traits，strong lodging resistance，medium-gluten grain quality，and wide adaptability. It is concluded that Xinmai 9813 is an elite wheat variety suitable for popularization in the southern part of the Huang-Huai winter wheat region.

Key words: Xinmai 9813, high-yield potential, stable-yield characteristic, wide adaptability, Huang-Huai winter wheat region