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恩恢542是恩施土家族苗族自治州农业科学院以自育的优质、抗稻瘟病、早熟恢复系恩恢22为母本,以四川农业大学选育的优质强恢复系蜀恢527为父本进行杂交,经系谱和稻瘟病高压胁迫选育的迟熟中籼水稻恢复系,具有抗稻瘟病、稻米品质优、恢复力强、配合力好、结实率高等特点,2023年获得植物新品种授权。利用恩恢542配组的川优542(川106A/恩恢542)、宜香优542(宜香1A/恩恢542)分别于2021年和2022年通过湖北省农作物品种审定委员会审定,内6优542(内香6A/恩恢542)于2023年通过国家农作物品种审定委员会审定,这些组合在湖北省或国家区试中均表现为中抗稻瘟病。介绍了恩恢542的选育过程、特征特性及应用情况。
Abstract：Enhui 542, derived from the cross with Enhui 22(a restorer line with early maturity, high grain quality, and resistance to rice blast bred by Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences) as the female parent and Shuhui 527(a restorer line with high grain quality bred by Sichuan Agricultural University) as the male parent through the pedigree method and selection under rice blast stress, is a new medium indica restorer line with late maturity. It has resistance to rice blast, high grain quality, strong restoring ability, high combining ability, and high seed-setting rate, being authorized as a new plant variety in 2023. The hybrid combinations Chuanyou 542(Chuan 106A/Enhui 542) and Yixiangyou 542(Yixiang 1A/Enhui 542) were approved by Hubei Provincial Crop Variety Appraisal Committee in 2021 and 2022, respectively. Nei 6 You 542(Neixiang 6A/Enhui 542) was approved by the National Crop Variety Appraisal Committee in 2023. These combinations exhibited moderate resistance to rice blast in the Hubei provincial or national trials. This article introduced the breeding process, characteristics, and applications of Enhui 542.
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基本信息:
DOI：10.16267/j.cnki.1005-3956.20241224.298
中图分类号:S435.111.41
引用信息:
[1]蔡娟,黄海清,王刚,等.抗稻瘟病优质强恢复系恩恢542的选育与应用[J].杂交水稻,2025,40(06):36-40.DOI:10.16267/j.cnki.1005-3956.20241224.298.
基金信息:
恩施州科技局启航项目(D20240031); 国家水稻产业技术体系恩施综合试验站(CARS-01-97)