为提高浙东地区再生稻综合生产能力，促进水稻产业发展，于2023年在宁波市开展甬优系列再生稻品种比较试验，筛选适宜浙东地区推广种植的高产优质再生稻新品种。综合考量了5个供试品种在两季产量、再生能力和再生季稻米品质等方面的综合表现，得出以下结论：甬优4901和甬优6760表现突出，熟期适中、产量高、再生能力较强、再生季稻米品质优，适宜在浙东地区作再生稻推广；甬优1540也展现出了良好的丰产性和再生能力，但其生育期相对较长，在宁波南部地区作再生稻种植时，为确保安全齐穗，需采取提前播种、提高留桩高度等栽培管理措施。

A comparative experiment of Yongyou series indica-japonica hybrid rice as ratoon rice was carried out in Ningbo in 2023, aiming to screen new high-yield and high-quality ratoon rice varieties suitable for promotion and cultivation in Eastern Zhejiang, and improve the comprehensive production capacity of ratoon rice in the Eastern Zhejiang and promote the development of the rice industry. Comprehensively considering of the performance of the five tested varieties in terms of two-season yield, regrowth ability, and quality of ratoon rice, Yongyou 4901 and Yongyou 6760 performed particularly well, with moderate maturity, high yield, strong regrowth ability, and excellent quality of ratoon rice, making them suitable for promotion as ratoon rice in the Eastern Zhejiang. Yongyou 1540 also showed good yield and regrowth ability, but its growth period is relatively long, in order to ensure full heading safely in the southern region of Ningbo, scientific cultivation management measures such as early sowing and increasing the height of stubble retention should be taken.