China Rice ›› 2026, Vol. 32 ›› Issue (3): 76-80.DOI: 10.3969/j.issn.1006-8082.2026.03.013

• Special Thesis & Basic Research • Previous Articles     Next Articles

Resistance Evaluation of Southern Japonica Rice Germplasm Against Sheath Blight in Field

FANG Jianjiang1,3, ZHANG Wenxuan1,3, CHEN Qi1,3, ZHAI Pengfei1,3, XIONG Yixuan1,3, YU Lingbo1,3, CHEN Zihang1,3, DONG Zhenzhong1,3, FENG Zhiming1,3, XIE Wenya1,3, HU Keming1,3, CHEN Zongxiang1,3, ZUO Shimin1,2,3,*()   

  1. 1 Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Zhongshan Biological Breeding Laboratory/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Agricultural College of Yangzhou University, Yangzhou, Jiangsu 225009, China
    2 Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou, Jiangsu 225009, China
    3 Yangzhou Modern Seed Innovation Institute, Gaoyou, Jiangsu 225600, China
  • Received:2025-12-11 Online:2026-05-20 Published:2026-05-11
  • Contact: ZUO Shimin

南方粳稻种质资源对纹枯病的田间抗病性评价

方建江1,3, 张文轩1,3, 陈玘1,3, 翟鹏飞1,3, 熊屹轩1,3, 余凌波1,3, 陈梓航1,3, 董振中1,3, 冯志明1,3, 谢文亚1,3, 胡珂鸣1,3, 陈宗祥1,3, 左示敏1,2,3,*()   

  1. 1 江苏省作物基因组学和分子育种重点实验室/生物育种钟山实验室/植物功能基因组学教育部重点实验室/扬州大学 农学院江苏 扬州 225009
    2 江苏省粮食作物现代产业技术协同创新中心/江苏省作物遗传生理重点实验室江苏 扬州 225009
    3 扬州现代种子创新研究所江苏 高邮 225600
  • 通讯作者: 左示敏
  • 基金资助:
    国家重点研发计划项目(2023YFD1200902);国家重点研发计划项目(CX(23)3001);生物育种钟山实验室项目(ZSBBL-KY2023-06-3)

Abstract:

Sheath blight is one of the three major diseases in rice, posing a serious threat to rice green sustainable production and high stable yield. As a primary staple crop, the safe production of japonica rice is of great significance to national food security. In this study, under field inoculation conditions, we evaluated the resistance to sheath blight in 255 japonica rice varieties and 35 indica rice varieties collected from different ecological regions of southern China. The results showed that the overall resistance level of the tested varieties was low, with 89.7% of them being moderately susceptible to susceptible. The resistance of indica rice varieties was generally superior to that of japonica varieties. Among the japonica varieties, those from Zhejiang Province exhibited higher resistance levels compared to those from Jiangsu and Anhui Provinces. In Jiangsu, late-maturing japonica types showed better resistance than medium-maturing and late-medium-maturing types. Correlation analysis revealed a significant negative relationship between sheath blight resistance and both heading date and plant height. Based on disease rating, heading date, and plant height, 14 moderately resistant japonica varieties with relatively good resistance were identified, providing valuable germplasm resources for breeding sheath blight-resistant japonica rice in southern China.

Key words: southern japonica rice, sheath blight, disease resistance evaluation, agronomic traits, maturity stage

摘要:

纹枯病是水稻三大主要病害之一,严重影响水稻的绿色可持续生产与高产稳产。粳稻作为主要的口粮作物,其安全生产对国家粮食安全具有重要意义。本研究在田间接种条件下,对来自南方不同生态区的255个粳稻品种和35个籼稻品种进行了纹枯病抗性鉴定。结果表明,参试品种整体抗性水平较低,89.7%品种表现为中感至感病;籼稻的抗性普遍优于粳稻;在粳稻中,浙江品种的抗性整体高于江苏和安徽品种;江苏地区的早熟晚粳型品种抗性优于中熟中粳和迟熟中粳类型品种。相关分析显示,抽穗期和株高与纹枯病抗性呈显著负相关。结合病情级别、抽穗期及株高性状,本研究筛选到14个抗性表现较好的中抗粳稻品种,为南方粳稻抗纹枯病育种提供了有价值的种质资源。

关键词: 南方粳稻, 纹枯病, 抗病评价, 农艺性状, 熟期

CLC Number: