Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (4): 843-847.DOI: 10.16178/j.issn.0528-9017.20240308

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Breeding and application of round grain specialized two-line early indica rice restorer line Fu 269

WANG Wei1(), QI Yongbin1, WANG Junmin1, XIAO Changming2, LI Kekuan2, LIU Chaogang1, LIU Qinglong1,*()   

  1. 1. Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
    2. Jiangxi Morden Breed Industry Co., Ltd., Nanchang 330026, Jiangxi
  • Received:2024-04-25 Online:2025-04-11 Published:2025-05-09
  • Contact: LIU Qinglong

Abstract:

Fu 269, a two-line early indica rice restorer line, was developed through the pedigree breeding method by irradiating F1 dry seeds of Zhong 07-108 × 04YK17 using 80 Gy γ-rays. It has the primary characteristics of strong restoring ability, heavy pollen load, high hybrid seed yield, round grain, high amylase content, high resistance to rice blast, et al. The two-line early indica hybrid rice combination Lingliangyou 69 (the combination of Xiangling 628S×Fu 269) was approved by the Jiangxi Provincial Crop Variety Approval Committee in 2018 and registered for introduction in Hunan Province in 2019.

Key words: two-line early indica rice restorer line, Fu 269, mutation breeding, high amylase content, round grain

CLC Number: