Scholarlink

<p>Damping-off disease is a major constraint in nursery raising of solanaceous vegetable crops. Chemical management of damping-off disease is effective but due to problems of resistance and environment degradation, biological approaches are encouraged. Seed biopriming is one such novel biological approach that pertains to a seed treatment procedure wherein bio-inoculants are applied to seeds, while ensuring controlled hydration conditions. The present study investigated the efficacy of seed biopriming with consortia of biocontrol agents (BCAs) and extracts of native medicinal plants in managing damping-off disease in nurseries and thereby improving various seed quality attributes. Aqueous extracts of <i>Roylea elegans</i> at 10% concentration was most effective against damping-off disease with mycelial inhibition of 36.78% followed by <i>Melia azedarach</i> and <i>Datura stramonium</i> with inhibition of 36.38, 30.78%, respectively under <i>in vitro</i> conditions. Also, the biological mixture of <i>Roylea elegans</i> and <i>Trichoderma harzianum</i> was found most effective against damping-off disease in naturally infected conditions with a reduction of about 48.05% in seedling mortality. Our study, therefore marked the potential of seed biopriming with biological mixtures as an eco-friendly alternative of use of chemicals in disease management.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Bio-priming seed treatment for biological control of damping-off in solanaceous vegetable crops

  • 期刊论文

  • 发表日期：

    2025年3月25日

查看全文
  • Deepika Sharma,
  • Harender Raj Gautam

摘要

Damping-off disease is a major constraint in nursery raising of solanaceous vegetable crops. Chemical management of damping-off disease is effective but due to problems of resistance and environment degradation, biological approaches are encouraged. Seed biopriming is one such novel biological approach that pertains to a seed treatment procedure wherein bio-inoculants are applied to seeds, while ensuring controlled hydration conditions. The present study investigated the efficacy of seed biopriming with consortia of biocontrol agents (BCAs) and extracts of native medicinal plants in managing damping-off disease in nurseries and thereby improving various seed quality attributes. Aqueous extracts of Roylea elegans at 10% concentration was most effective against damping-off disease with mycelial inhibition of 36.78% followed by Melia azedarach and Datura stramonium with inhibition of 36.38, 30.78%, respectively under in vitro conditions. Also, the biological mixture of Roylea elegans and Trichoderma harzianum was found most effective against damping-off disease in naturally infected conditions with a reduction of about 48.05% in seedling mortality. Our study, therefore marked the potential of seed biopriming with biological mixtures as an eco-friendly alternative of use of chemicals in disease management.