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农学学报

农学学报 ›› 2021, Vol. 11 ›› Issue (7): 13-17.doi: 10.11923/j.issn.2095-4050.cjas20200300047

所属专题： 水稻

• 植物保护 • 上一篇    下一篇

噻呋酰胺不同种子处理方式对水稻纹枯病的控制效应及其安全性评价

姚克兵1(), 于居龙1, 张国1, 赵来成1, 缪康1, 束兆林1, 杨红福1, 徐超1, 朱凤2()   

  1. 1江苏丘陵地区镇江农业科学研究所,江苏句容 212400
    2江苏省植物保护植物检疫站,南京 210036
  • 收稿日期:2020-03-04 修回日期:2020-04-22 出版日期:2021-07-20 发布日期:2021-08-04
  • 通讯作者: 朱凤 E-mail:zjykb@126.com;zhufeng@jsagri.gov.cn
  • 作者简介:姚克兵,男,1974年出生,江苏扬中人,研究员,硕士,主要从事水稻病虫害综合治理研究工作。通信地址：212400 江苏省句容市华阳镇弘景路1号 江苏丘陵地区镇江农业科学研究所,Tel：0511-80978001,E-mail： zjykb@126.com。
  • 基金资助:
    江苏省重点研发计划(现代农业)项目“稻麦农药化肥减施增效技术集成创新与示范”(BE2017366);江苏省现代农业（稻麦）产业技术体系项目(JATS(2019)269);江苏省农业科技自主创新基金“基于种子处理的水稻主要病害简约化防控技术研究”(CX(2017)3023)

Rice Sheath Blight: Control Effect and Safety Evaluation Under Different Thifluzamide Seed Treatments

Yao Kebing1(), Yu Julong1, Zhang Guo1, Zhao Laicheng1, Miao Kang1, Shu Zhaolin1, Yang Hongfu1, Xu Chao1, Zhu Feng2()   

  1. 1Zhenjiang Institute of Agricultural Science in Hilly Area of Jiangsu Province, Jurong 212400, Jiangsu, China
    2Plant Protection and Quarantine Station of Jiangsu Province, Nanjing, 210036, Jiangsu, China
  • Received:2020-03-04 Revised:2020-04-22 Online:2021-07-20 Published:2021-08-04
  • Contact: Zhu Feng E-mail:zjykb@126.com;zhufeng@jsagri.gov.cn

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摘要：

为明确噻呋酰胺种子处理对水稻纹枯病的防治效果及对水稻生长的影响,同时为其推广应用提供科学依据,以24%噻呋酰胺悬浮剂为试验材料,采用浸种、湿拌和干拌3种种子处理方式,每种方式设置150、300、450、600 ai.g/hm2和CK 5个处理,测定其对水稻纹枯病的控制效果及对水稻种子的安全性。结果表明,播种后91天,24%噻呋酰胺悬浮剂150~600 ai.g/hm2湿拌处理对纹枯病的控制效果为90.46%~98.10%;干拌处理对纹枯病的控制效果为91.16%~99.28%;浸种处理对纹枯病的控制效果不理想。播种后108天,各处理对水稻纹枯病的防治效果略有下降,但与播种后91天对纹枯病的防治效果趋势基本一致,且各处理对水稻发芽、出苗和生长无不良影响。因此,24%噻呋酰胺悬浮剂种子处理宜湿拌和干拌,此外,从防治效果和经济角度考虑,推荐浓度为300~450 ai.g/hm2,其对水稻纹枯病具有良好的防治效果,并表现出较长的持效期,同时对水稻生长安全,可在水稻生产上推广应用。

关键词: 水稻纹枯病, 噻呋酰胺, 种子处理, 防治效果, 安全性

Abstract:

To clarify the control effect of thiofuramide seed treatment on rice sheath blight and its impact on rice growth, and provide a basis for its popularization and application, 24% thiofuramide SC was used as the experimental material, and three seed treatment methods, including seed soaking, wet mixing and dry mixing were conducted, and each method was set with five treatments of 150, 300, 450, 600 ai.g/hm2 and CK, to determine the control effect on rice sheath blight and safety on rice seed. The results showed that the control effect on sheath blight by wet mixing was 90.46%-98.10% when seeds were treated with 24% thifluzamide 150-600 ai.g/hm2 after 91 days. The control effect on sheath blight by dry mix treatment was 91.16%-99.28%. The control effect on sheath blight was poor when seeds were treated by soaking. The effect of each treatment on rice sheath blight slightly decreased after 108 days, but the trend was basically the same as 91 days after sowing. At the same time, all treatments had no adverse effect on rice germination, emergence and growth. Therefore, rice seed treatment with 24% thifluzamide SC should be used by wet mixing or dry mixing. In addition, from the perspective of control effect and economic cost, the recommended concentration should be 300-450 ai.g/hm2, which has a good control effect on rice sheath blight and a long efficacy, and is safe for rice growth.

Key words: Rice Sheath Blight, Thifluzamide, Seed Treatment, Control Effect, Safety Evaluation

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