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<p>Collar rot caused by <i>Sclerotium rolfsii</i>, is a devastating soil-borne disease that severely affects brinjal (<i>Solanum melongena</i>) production, leading to significant yield losses. Biological control is an eco-friendly alternative to chemical treatments, offering disease suppression and plant growth promotion. The present study evaluates the biocontrol potential of native arbuscular mycorrhizal (AM) fungi against <i>S. rolfsii</i> and their influence on brinjal growth. Ten native AM fungal isolates were screened under greenhouse conditions using brinjal as host. ASAMF24, ASAMF10, and ASAMF18 exhibited superior biocontrol efficacy, as evidenced by increased antioxidant enzyme activities, higher root colonization, and reduced disease incidence. Additionally, the isolates significantly enhanced plant growth parameters, including total dry weight, plant height, and root length, even under biotic stress. The findings suggest that AM fungi could be a sustainable strategy for managing <i>S. rolfsii</i> induced collar rot while promoting brinjal growth.</p>

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Bioefficacy of indigenous AM fungi against Sclerotium rolfsii and their impact on the growth enhancement of brinjal

  • 期刊论文

  • 发表日期：

    2025年3月25日

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  • Avinash S. H.,
  • P. Jones Nirmalnath,
  • Manasa S. G. ,
  • M. N. Sreenivasa,
  • R. V. Hegde,
  • Yashoda Hegde

摘要

Collar rot caused by Sclerotium rolfsii, is a devastating soil-borne disease that severely affects brinjal (Solanum melongena) production, leading to significant yield losses. Biological control is an eco-friendly alternative to chemical treatments, offering disease suppression and plant growth promotion. The present study evaluates the biocontrol potential of native arbuscular mycorrhizal (AM) fungi against S. rolfsii and their influence on brinjal growth. Ten native AM fungal isolates were screened under greenhouse conditions using brinjal as host. ASAMF24, ASAMF10, and ASAMF18 exhibited superior biocontrol efficacy, as evidenced by increased antioxidant enzyme activities, higher root colonization, and reduced disease incidence. Additionally, the isolates significantly enhanced plant growth parameters, including total dry weight, plant height, and root length, even under biotic stress. The findings suggest that AM fungi could be a sustainable strategy for managing S. rolfsii induced collar rot while promoting brinjal growth.