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中国农学通报 ›› 2020, Vol. 36 ›› Issue (28): 131-136.doi: 10.11924/j.issn.1000-6850.casb2020-0027

所属专题: 烟草种植与生产

• 植物保护·农药 • 上一篇    下一篇

烟草青枯病生防菌的筛选及其田间防效评价

张洁梅1,2,3(), 张仁军1,2,3, 姚正平1,2,3, 吴金虎1,2,3, 王亮4, 候正学5, 杨壮6, 殷红慧7(), 陈穗云1,2,3()   

  1. 1云南大学生态学与环境学院,昆明 650091
    2云南省作物病害生物防控技术研究中心,昆明 650091
    3云南省高校植物病虫害生物防控工程研究中心,昆明 650091
    4云南省烟草公司昆明市公司,昆明 650051
    5昆明市烟草公司富民分公司,昆明 650400
    6四川省龙日种畜场,四川红原 624400
    7云南省烟草公司文山州公司,云南文山 663099
  • 收稿日期:2020-04-22 修回日期:2020-07-08 出版日期:2020-10-05 发布日期:2020-09-23
  • 通讯作者: 殷红慧,陈穗云
  • 作者简介:张洁梅,女,1995年出生,云南红河人,在读硕士研究生,主要从事植物病虫害研究。通信地址:650091 云南省昆明市呈贡区云南大学,Tel:0871-65033837,E-mail:942092550@qq.com
  • 基金资助:
    中国烟草总公司云南省公司科技计划重点项目“昆明烟草部分土传病害绿色防控应用技术研发与集成优化”(201853010020082);中国烟草总公司云南省公司科技项目“文山州烤烟病虫害绿色防控技术体系构建及推广应用”(2017YN26)

Screening of Biocontrol Bacteria Against Tobacco Bacterial Wilt and Evaluation of the Field Control Effect

Zhang Jiemei1,2,3(), Zhang Renjun1,2,3, Yao Zhengping1,2,3, Wu Jinhu1,2,3, Wang Liang4, Hou Zhengxue5, Yang Zhuang6, Yin Honghui7(), Chen Suiyun1,2,3()   

  1. 1College of Ecology and Environmental Sciences, Yunnan University, Kunming 650091
    2Biocontrol Engineering Research Center of Plant Disease and Pest, Yunnan Province, Kunming 650091
    3Biocontrol Engineering Research Center of Crop Disease and Pests, Yunnan Province, Kunming 650091
    4Yunnan Tobacco Company Kunming Branch, Kunming 650051
    5Fumin Sub-branch of Yunnan Tobacco Company Kunming Branch, Fumin Yunnan 650400
    6Longri Breeding Farm of Sichuan Province, Hongyuan Sichuan 624400
    7Wenshan Branch of Yunnan Tobacco Company, Wenshan Yunnan 663099
  • Received:2020-04-22 Revised:2020-07-08 Online:2020-10-05 Published:2020-09-23
  • Contact: Yin Honghui,Chen Suiyun

摘要:

为筛选出对烟草青枯病有效防治的生防菌,通过稀释涂布法从烟株根际土壤分离到一株具有明显拮抗作用的菌株69-1,经16S rDNA鉴定该菌株为壮观链霉菌(Streptomyces spectabilis),并用该菌株进行烟草青枯病田间防治试验。结果表明,与对照相比,经菌株69-1处理烟株茎围、有效叶片数、最大叶宽、最大叶长、上中下部烟叶单叶干重、最大叶面积、产量均显著增加,且对烟草青枯病的相对防效达60.42%,同时对不同处理组的初烤烟叶进行化学成分的检测分析,发现菌株69-1处理相对于对照组烟叶品质更佳。该菌株菌剂处理不仅可以提高烟株对烟草青枯病的防效,而且还提高烟叶品质和产量,可为烟草青枯病生物防治提供一定参考。

关键词: 生防菌, 壮观链霉菌, 烟草青枯病, 田间防效, 烟叶品质

Abstract:

To screen out the biocontrol bacteria that can effectively control tobacco bacterial wilt, a strain 69-1 with obvious antagonism was isolated from the tobacco rhizosphere soil by dilution coating method, and the strain was identified as Streptomyces spectabilis and used for field control experiments of tobacco bacterial wilt. The results showed that compared with the control, the stem circumference, effective leaf number, maximum leaf width, maximum leaf length, single leaf dry weight, maximum leaf area, and yield of tobacco leaves treated with strain 69-1 increased significantly. The relative control effect on tobacco bacterial wilt reached 60.42%. At the same time, the chemical composition of the flue-cured tobacco leaves of different treatment groups was analyzed and found that the tobacco quality under strain 69-1 treatment was better than that of control. The bacterial agent treatment of the strain can not only enhance the control effect of tobacco plants against tobacco bacterial wilt, but also improve the quality and yield of tobacco leaves, and the study can provide a certain reference for the biological control of tobacco bacterial wilt.

Key words: biocontrol bacteria, Streptomyces spectabilis, tobacco bacterial wilt, field efficacy, tobacco quality

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