关键词: 优质高产籼粳杂交稻, 嘉丰优3号, 选育, 制种技术

Abstract:

Jiafengyou 3 is a new hybrid rice combination developed by Jiaxing Academy of Agricultural Sciences, China National Rice Research Institute, and Zhejiang Kedefeng Seed Industry Co., Ltd., which using Jiahe 112A (long grain type japonica rice three line male sterile line) as the female parent and G1143 (medium indica late maturing restoring line) as the male parent. This combination has advantages such as high yield, high quality, and moderate resistance to rice blast. It was approved by Zhejiang in April 2021 (Zhe Authorized Rice 2021019), and from 2021 to 2023, it has successively passed the introduction registration of Jiangxi Province [(Gan) Introduction 〔2021〕 No. 001], Anhui Province (Wan Introduction Rice 2021066), Fujian Province [(Min) Introduction 〔2022〕 No. 1], and Hubei Province (E Introduction Rice 2022055), making it suitable for planting medium rice in the middle and lower reaches of the Yangtze River. This article introduces the breeding process, characteristic characteristics, high-yield cultivation, and seed production techniques of Jiafengyou 3.

Key words: indica-japonica hybrid rice variety with high-yield and high-quality, Jiafengyou 3, breeding, seed production technology