浙江农业学报 ›› 2025, Vol. 37 ›› Issue (12): 2449-2457.DOI: 10.3969/j.issn.1004-1524.20240672

• 作物科学 • 上一篇    下一篇

浙江省2014—2023年区域试验中水稻品种的稻瘟病抗性分析

郝中娜1(), 邱海萍1, 柴荣耀1, 韩展誉2, 张震1, 王艳丽1, 王教瑜1, 刘鑫2,*()   

  1. 1.浙江省农业科学院 植物保护与微生物研究所,浙江省国家农作物品种抗性鉴定试验站,浙江 杭州 310021
    2.浙江省种子管理总站,浙江 杭州 310020
  • 收稿日期:2024-07-23 出版日期:2025-12-25 发布日期:2026-01-09
  • 作者简介:郝中娜(1978—),女,黑龙江哈尔滨人,博士,副研究员,研究方向为作物抗病性。E-mail:haozhongna1999@sina.com
  • 通讯作者: *刘鑫,E-mail:zjseed@126.com
  • 基金资助:
    浙江省农业农村现代化先行资金项目(2014—2023年);浙江省“十四五”水稻新品种选育重大科技专项(2021C02063-3)

Analysis of rice blast resistance in rice varieties from regional trials in Zhejiang Province of China from 2014 to 2023

HAO Zhongna1(), QIU Haiping1, CHAI Rongyao1, HAN Zhanyu2, ZHANG Zhen1, WANG Yanli1, WANG Jiaoyu1, LIU Xin2,*()   

  1. 1. Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. Seed Management Station of Zhejiang Province, Hangzhou 310020, China
  • Received:2024-07-23 Online:2025-12-25 Published:2026-01-09

摘要:

2014—2023年,分别采用人工接种鉴定和自然诱发鉴定对浙江省水稻区域试验的1 498个新品种进行苗叶瘟和穗瘟抗性鉴定,分析浙江省水稻新品种的稻瘟病抗性水平,并比较不同类型品种间的抗性差异。结果显示,除穗瘟发病率病级外,参试品种的苗叶瘟病级、穗瘟损失率病级、稻瘟病综合指数、穗瘟损失率最高病级的平均值均处于偏中抗水平。其中,2018年和2020年参试品种的稻瘟病抗性表现最佳,2023年参试品种的苗叶瘟抗性最差,而2016年参试品种在穗瘟抗性与综合抗性方面均表现最差。参试品种以中抗类型占比最高,其次为中感类型。基于稻瘟病综合指数判断,参试品种的达标率为94.9%,抗病率(即高抗、抗和中抗合计占比)为57.1%;基于穗瘟损失率最高病级判断,参试品种的达标率为92.9%,抗病率为67.4%。根据稻瘟病综合指数判断,不同类型水稻品种的抗性水平从高到低依次为单季籼粳杂交稻>早籼稻>单季杂交籼稻>连作杂交晚籼稻>单季晚粳稻>连作晚粳稻。

关键词: 水稻品种, 稻瘟病, 抗性, 浙江省, 区域试验

Abstract:

From 2014 to 2023, a total of 1 498 new rice varieties from the regional trials in Zhejiang Province were evaluated for resistance to rice blast (including rice leaf and panicle blast), to analyze the resistance levels of new rice varieties in Zhejiang and compare the differences among different types of rice varieties. Rice leaf blast resistance was assessed by artificial inoculation, while panicle blast resistance was evaluated through natural infection in field.The results showed that, except for the disease grade of panicle blast incidence, the average values of disease grade of leaf blast, disease grade of panicle blast loss rate, composite index of rice blast, and the highest disease grade of panicle blast loss rate all indicated a moderate resistance level. The varieties tested in 2018 and 2020 exhibited the best overall blast resistance, while those from 2023 showed the poorest rice leaf blast resistance, and the varieties from 2016 performed the worst in both panicle blast resistance and comprehensive resistance. Among the tested varieties, the moderately resistant type accounted for the largest proportion, followed by the moderately susceptible type. Based on the composite index of rice blast, the compliance rate of the varieties was 94.9%, and the disease resistance rate (including highly resistant, resistant, and moderately resistant varieties) was 57.1%. Based on the highest disease grade of panicle blast loss rate, the compliance rate was 92.9%, and the disease resistance rate was 67.4%. According to the composite index of rice blast, the resistance levels of different types of rice varieties decreased as follows: single-season hybrid indica-japonica rice>early indica rice>single-season hybrid indica rice>continuous cropping hybrid late indica rice>single-season late japonica rice>continuous cropping late japonica rice.

Key words: rice variety, rice blast, resistance, Zhejiang Province, regional trial

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