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Influence of pesticide-tolerant soil bacteria for disease control caused by Macrophomina phaseolina (Tassi.) Goid and plant growth promotion in Vigna unguiculata (L.) Walp

Author

Listed:
  • A. Bandopadhyay

    (Barasat Government College)

  • T. Roy

    (Barasat Government College
    University of Gour Banga)

  • S. Alam

    (Indian Institute of Engineering Science and Technology)

  • S. Majumdar

    (University of Gour Banga)

  • N. Das

    (Barasat Government College)

Abstract

Cowpea [Vigna unguiculata (L.) Walp.] is an important legume that suffers from several diseases caused by Macrophomina phaseolina (Tassi.) Goid from seedlings until harvest. The present study involved the biological management of Macrophomina diseases by six pesticide-tolerant non-pathogenic isolates of rhizobacteria, including species of Bacillus and Pseudomonas. All isolates were tolerant to methomyl, imidacloprid, or carbendazim at different concentrations. Antibiosis, competition, the production of volatile and non-volatile compounds, cell wall-degrading enzymes, siderophores, growth hormones, and phosphate solubilisation were attributed to the biocontrol and growth promotion mechanisms of all the selected rhizobacteria. The disease severity index (DSI) and plant health index (HI) were calculated after applying bioagents under controlled conditions in pot and field trials for three consecutive years. A t-test was performed on the DSI data for the different treatment groups and time periods. A formula has been devised correlating changes in DSI with time in different culture conditions, revealed a progressive increase in DSI in treatments without bacteria, hydropriming, or pathogens. Treatment with Bacillus cereus, Pseudomonas donghuensis, and Pseudomonas aeruginosa showed lower DSI compared to the other treatments. The HI of Vigna plants was found to be maximal after treatment with P. aeruginosa. The link between DSI and HI was inversely proportional, and a highly significant correlation was found at p

Suggested Citation

  • A. Bandopadhyay & T. Roy & S. Alam & S. Majumdar & N. Das, 2023. "Influence of pesticide-tolerant soil bacteria for disease control caused by Macrophomina phaseolina (Tassi.) Goid and plant growth promotion in Vigna unguiculata (L.) Walp," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 25(12), pages 14693-14713, December.
    • Handle: RePEc:spr:endesu:v:25:y:2023:i:12:d:10.1007_s10668-022-02684-x
    DOI: 10.1007/s10668-022-02684-x
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    References listed on IDEAS

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    1. Anil Singh & B. Bhatt & P. Sundram & Santosh Kumar & R. C. Bahrati & Naresh Chandra & Mathura Rai, 2012. "Study of Site Specific Nutrients Management of Cowpea Seed Production and Their Effect on Soil Nutrient Status," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(10), pages 191-191, August.
    2. Fo-Ting Shen & Jui-Hung Yen & Chien-Sen Liao & Wen-Ching Chen & Yi-Ting Chao, 2019. "Screening of Rice Endophytic Biofertilizers with Fungicide Tolerance and Plant Growth-Promoting Characteristics," Sustainability, MDPI, vol. 11(4), pages 1-13, February.
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