Introduction, screening, and evaluation of high-quality medium-grain rice varietiesin Xinluo District, Longyan

To select suitable medium indica rice varieties for cultivation in Xinluo District, Longyan City, Fujian Province, five newly introduced medium indica hybrid rice varieties, namely Zhuliangyou 5298, Juliangyou Yuzhan, Seixiangyou Fansi, Wuliangyou Yuzhan, and Heliangyou 676, were tested with Jingliangyou 534 as the control. A comparative experiment was conducted in Tongpan Village, Jiangshan Town, Xinluo District. The results showed that Zhuliangyou 5298, Wuliangyou Yuzhan, and Juliangyou Yuzhan exhibited moderate growth periods, significant yield-increasing effects, and strong comprehensive resistance, with yields were 9354.9, 8992.35, and 7831.95 kg·hm⁻², respectively, representing an increase of 22.5%, 17.8%, and 2.6% compared to the control.In conclusion, the three varieties are suitable for demonstration and promotion in Xinluo District.