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中国生物防治学报 ›› 2023, Vol. 39 ›› Issue (5): 1186-1193.DOI: 10.16409/j.cnki.2095-039x.2023.02.050

• 研究论文 • 上一篇    下一篇

基于西兰花尾菜为载体的解淀粉芽胞杆菌PHODG36颗粒剂研制及其对棉花黄萎病的防治效果

赵卫松1, 李社增1, 赵明珠1, 郭庆港1, 鹿秀云1, 勾建军2, 马平1   

  1. 1. 河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心/农业农村部华北北部作物有害生物综合治理重点实验室, 保定 071000;
    2. 河北省植保植检总站, 石家庄 050031
  • 收稿日期:2023-05-23 出版日期:2023-10-08 发布日期:2023-10-25
  • 通讯作者: 李社增,博士,研究员,Email:shezengli@163.com。
  • 作者简介:赵卫松,博士,研究员,Email:zhaoweisong1985@163.com。
  • 基金资助:
    河北省重点研发计划(22326509D);河北省自然科学基金(C2022301036);国家重点研发计划(2022YFD1400300);国家现代农业产业技术体系(CARS-15-19)

Preparation of Bacillus amyloliquefaciens PHODG36 Granules Based on Broccoli residues as Carrier and Its Control Effect on Cotton Verticillium Wilt

ZHAO Weisong1, LI Shezeng1, ZHAO Mingzhu1, GUO Qinggang1, LU Xiuyun1, GOU Jianjun2, MA Ping1   

  1. 1. Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/Innovation Centre of Hebei Province/Key Laboratory of IPM on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China;
    2. Hebei Plant Protection and Inspection Station, Shijiazhuang 050031, China
  • Received:2023-05-23 Online:2023-10-08 Published:2023-10-25

摘要: 本研究以防病促生的解淀粉芽胞杆菌PHODG36为有效成分、西兰花尾菜干粉和草炭为载体研制出解淀粉芽胞杆菌颗粒剂,在温室和田间小区条件下,研究该颗粒剂对棉花出苗和植株生物量的影响,并评价其对棉花黄萎病的防治效果。结果表明,制备的颗粒剂外观为黑色、短柱状、平均长度为8 mm,芽胞含量为1.5×109CFU/g。与空白对照相比,培养基质中添加0.1%-0.5%颗粒剂的校正出苗率差异不显著,而随着颗粒剂用量的增加(1%和2%),棉花校正出苗率呈显著下降趋势。颗粒剂用量0.3%处理对棉花株高、植株鲜重和干重的促生率分别为14.53%、16.38%和17.05%。综合考虑上述因素,确定颗粒剂最佳用量为0.3%;温室防病试验表明,土壤中添加0.3%颗粒剂对棉花黄萎病的防治效果为61.60%。采用田间撒施法研究颗粒剂在500、1000和1500 kg/667 m2剂量下对黄萎病的防治效果,结果表明该菌剂500 kg/667 m2对黄萎病的防治效果最高,达到67.28%。综合分析表明,解淀粉芽胞杆菌颗粒剂能够有效降低黄萎病的发生,为棉花黄萎病的绿色防控提供了产品储备。

关键词: 解淀粉芽胞杆菌, 西兰花尾菜干粉, 颗粒剂, 棉花黄萎病, 防治效果

Abstract: In this study, a microbial agent for controlling cotton verticillium wilt was developed using biocontrol and growth-promoting of Bacillus amyloliquefaciens PHODG36 as the active ingredient, dried broccoli residues powder, and peat as the filler. The effects of PHODG36 granules on cotton seedling emergence and plant biomass were studied, and the control effects of the microbial agent on cotton verticillium wilt were evaluated through greenhouse pot experiments and field plot experiments. The results showed that the microbial agent had a black, short columnar appearance, an average length of 8±1 mm, and spore content was 1.5×109 CFU/g. Compared with the blank control, there was no significant difference in the corrected seedling rates among treatments with concentration of 0.1% to 0.5% of the microbial agent added to the culture substrate, but with the increase of the microbial agent concentration (1% and 2%), the corrected seedling rates showed a significant downward trend. When the concentration of microbial agent was 0.3%, the growth promotion rate on plant height, fresh and dry weight of plants were 14.53%, 16.38% and 17.05%, respectively. Taking the above factors into consideration, the optimal concentration of microbial agent was 0.3%, and the control effect on cotton verticillium wilt was 61.60% in greenhouse experiment. The control effect of the agent on cotton verticillium wilt was studied at the dosage of 500, 1000 and 1500 kg/667 m2by spreading application method in field. The results showed that the maximum control effect on cotton verticillium wilt was 67.28%, when the agent was 500 kg/667 m2. Comprehensive analysis showed that B. amyloliquefaciens PHODG36 granules could effectively reduce the incidence of cotton verticillium wilt, and provide a product reserve for green prevention and control this disease.

Key words: Bacillus amyloliquefaciens, dried broccoli residue powder, granules, cotton verticillium wilt, control effect

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