Scholarlink

<p>A field survey was conducted in different country bean growing areas of Bangladesh. The highest number of disease affected fields and a high disease incidence was recorded in the Bogura district (65–90%) and the lowest disease incidence was recorded in the Jessore district (10–15%). <i>Sclerotinia sclerotiorum</i> was isolated from diseased plant parts of the country bean, which produces sclerotia, in the culture medium. Sclerotia were observed to be round to irregular in shape, with widths varying from 2 to 8&#xa0;mm and lengths from 2 to 17&#xa0;mm. Three fungal viz. <i>Trichoderm harzianum</i>, <i>T. viride</i> and <i>T. virens</i>, and six bacterial viz. <i>Bacillus subtilis</i> B20, <i>B. subtilis</i> BVC38, <i>Pseudomonas</i> sp. (N), <i>Pseudomonas</i> sp. (S) and <i>B.</i> amyloliquefaciens antagonists were examined for their effectiveness in controlling <i>S. sclerotiorum in vitro.</i> The highest inhibition of mycelial growth of <i>S. sclerotiorum</i> was recorded with <i>Pseudomonas</i> sp. (S) at 92.42%, followed by <i>B. subtilis</i> BVC38, <i>Pseudomonas</i> sp. (N), at 90.67%, and 90.50%, respectively. Among the fungal bio-control agents, the highest mycelial growth inhibition was recorded from <i>T. harzianum</i>, followed by <i>T. viride</i> and <i>T. virens</i>, at 97.96, 95.33, and 92%, respectively. A field experiment was conducted in Doripara village, Bogura, using two Integrated Pest Management (IPM) packages and control (farmer practice). Marketable yield increased in both of the IPM package. White mold disease incidence reduced by 63.31% and 68.83% in IPM Package 1 and 2, respectively, with yield increases of 16.51% and 18.59% over the control. Both packages significantly enhanced the Benefit Cost Ratio (2.61), resulting in a 39.38–39.81% gain over farmer practices.</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

Integrated management of white mold disease of country bean caused by Sclerotinia sclerotiorum (Lib.) de Bary in Bangladesh

  • 期刊论文

  • 发表日期：

    2025年9月10日

查看全文
  • Najmun Naher,
  • Mafruha Afroz,
  • Md. Jahangir Alam,
  • Mritunjoy Mojumder,
  • Mosammat Shamsunnahar

摘要

A field survey was conducted in different country bean growing areas of Bangladesh. The highest number of disease affected fields and a high disease incidence was recorded in the Bogura district (65–90%) and the lowest disease incidence was recorded in the Jessore district (10–15%). Sclerotinia sclerotiorum was isolated from diseased plant parts of the country bean, which produces sclerotia, in the culture medium. Sclerotia were observed to be round to irregular in shape, with widths varying from 2 to 8 mm and lengths from 2 to 17 mm. Three fungal viz. Trichoderm harzianum, T. viride and T. virens, and six bacterial viz. Bacillus subtilis B20, B. subtilis BVC38, Pseudomonas sp. (N), Pseudomonas sp. (S) and B. amyloliquefaciens antagonists were examined for their effectiveness in controlling S. sclerotiorum in vitro. The highest inhibition of mycelial growth of S. sclerotiorum was recorded with Pseudomonas sp. (S) at 92.42%, followed by B. subtilis BVC38, Pseudomonas sp. (N), at 90.67%, and 90.50%, respectively. Among the fungal bio-control agents, the highest mycelial growth inhibition was recorded from T. harzianum, followed by T. viride and T. virens, at 97.96, 95.33, and 92%, respectively. A field experiment was conducted in Doripara village, Bogura, using two Integrated Pest Management (IPM) packages and control (farmer practice). Marketable yield increased in both of the IPM package. White mold disease incidence reduced by 63.31% and 68.83% in IPM Package 1 and 2, respectively, with yield increases of 16.51% and 18.59% over the control. Both packages significantly enhanced the Benefit Cost Ratio (2.61), resulting in a 39.38–39.81% gain over farmer practices.