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农学学报 ›› 2020, Vol. 10 ›› Issue (8): 33-37.doi: 10.11923/j.issn.2095-4050.cjas20190900194

所属专题: 烟草种植与生产

• 植物保护 • 上一篇    下一篇

常见杀菌剂对烟草青枯病菌的毒力效应

林天然1(), 卢艺惠2, 曾文龙1, 林晓路1, 赖荣泉3, 汤鸣强2,4(), 彭水连5   

  1. 1福建省烟草公司龙岩市公司,福建龙岩 364000
    2福建师范大学福清分校海洋与生化工程学院,福建福清 350300
    3福建农林大学植保学院,福州 350003
    4现代设施农业福建省高校工程研究中心,福建福清 350300
    5龙岩市烟草公司长汀分公司,福建长汀 366300
  • 收稿日期:2019-09-18 修回日期:2020-01-02 出版日期:2020-08-20 发布日期:2020-08-19
  • 通讯作者: 汤鸣强 E-mail:chltr@126.com;mqt-1022@163.com
  • 作者简介:林天然,男,1981年出生,福建永定人,农艺师,硕士,主要从事烟草植保、品种方面的研究。通信地址:364000 福建省烟草公司龙岩市公司,E-mail: chltr@126.com
  • 基金资助:
    福建省烟草公司龙岩市公司项目“龙岩烟区烟草青枯病、空胫病菌的动态监测及生防菌的筛选与应用”(岩烟司[2014]160号文件)

Toxicity Effects of Common Fungicides on Tobacco Bacterial Wilt Caused by Ralstonia solanacearum

Lin Tianran1(), Lu Yihui2, Zeng Wenlong1, Lin Xiaolu1, Lai Rongquan3, Tang Mingqiang2,4(), Peng Shuilian5   

  1. 1Longyan Branch of Fujian Tobacco Company, Longyan 364000, Fujian, China
    2School of Ocean and Biochemical Engineering, Fuqing Branch of Fujian Normal University, Fuqing 350300, Fujian, China
    3College of Plant Protection, Fujian Agricultural and Forestry University, Fuzhou 350003, Fujian, China
    4Engineering Research Center of Modern Facility Agriculture of Fujian University, Fuqing 350300, Fujian, China
    5Changting Branch of Longyan Tobacco Company, Changting 366300, Fujian, China
  • Received:2019-09-18 Revised:2020-01-02 Online:2020-08-20 Published:2020-08-19
  • Contact: Tang Mingqiang E-mail:chltr@126.com;mqt-1022@163.com

摘要:

为筛选出有效防治烟草青枯病的药剂,采用平板抑菌圈法测定硫酸链霉素、乙蒜素、辛菌胺醋酸盐、克菌康、青枯灵5种杀菌剂对烟草青枯病菌的毒力作用,并通过先接种病原后灌药处理的温室盆栽试验检测其药效。结果表明,5种杀菌剂对烟草青枯病菌的生长均有抑制作用,杀菌剂浓度与抑菌效应呈现显著的正相关关系。72%农用硫酸链霉素、80%乙蒜素、1.8%辛菌胺醋酸盐、3%克菌康、50%青枯灵EC50分别为43.50、154.69、116.75、123.43、37.86 mg/L。50%青枯灵和72%农用,青枯病菌的防效最好,达88.6%;农用硫酸链霉素次之,防效为79.6%;而1.8%辛菌胺醋酸盐、80%乙蒜素和3%克菌康的防效较差,分别为75.6%、56.7%和52.3%。

关键词: 烟草青枯病菌, 杀菌剂, 复配剂, 毒力测定, 盆栽试验

Abstract:

To screen out the effective fungicides to control tobacco bacterial wilt caused by Ralstonia solanacearum, the toxicity of five fungicides, including streptomycin sulfate, ethylallicin, octyllamine acetate, Kejunkang and Qingkuling, to tobacco bacterial wilt bacteria was determined with plate inhibition zone method while their efficacy was tested by pot experiment in greenhouse by inoculating pathogen first and then irrigating drugs. The results showed that the five fungicides could inhibit the growth of tobacco bacterial wilt. There was a significant positive correlation between the concentration of fungicides and the inhibition effect. The correlation between the concentration of fungicides and the inhibition effect was significant. The EC50 of 72% Streptomycin sulphate, 80% ethylallicin, 1.8% octyllamine acetate, 3% Kejunkang and 50% Qingkuling was 43.50, 154.69, 116.75, 123.43 and 37.86 mg/L, respectively. Pot experiment showed that 50% Qingkuling had the highest inhibition rate against tobacco bacterial wilt, with the control efficacy of 88.6%; followed by 72% streptomycin sulfate, with the control efficacy of 79.6%. 1.8% octyllamine acetate, 80% ethylallicin and 3% Kejunkang had poor control effects on tobacco bacterial wilt with control efficacy of 75.6%, 56.7% and 52.3%, respectively.

Key words: Tobacco Bacterial Wilt, Fungicides, Compounded Agent, Toxicity Determination, Pot Experiment

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