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<p>The growth of a biocontrol agent at varying temperatures defines its utility and survivability over a long period. An experiment was conducted for knowing the behavior of Indian population of <i>Catenaria anguillulae</i> at varying temperatures <i>Viz.</i>, 31 ± 1&#xa0;°C, 34 ± 1&#xa0;°C, 37 ± 1&#xa0;°C, 40 ± 1&#xa0;°C and 43 ± 1&#xa0;°C using linseed oil cake agar medium. The experiment proved that the most of the isolates showed a significant increase (<i>p</i> = 0.5) in their growth up to 34 ± 1&#xa0;°C except Ca-1, BHUC-9, BHUC-12, BHUC-36, BHUC-46 and BHUC-67. All the isolates managed to survive up to 40 ± 1&#xa0;°C, whereas, forty per cent of them could manage to survive at 43 ± 1&#xa0;°C. A temperature of 34 ± 1&#xa0;°C is considered as the optimum for the growth of the fungus. This suggests the utilization of the virulent isolates according to their temperature preference during different cropping seasons. This is the first report on behavior of a large population of the fungus against varying temperatures.</p>

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Response of Indian population of Catenaria anguillulae Sorokin to temperature

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • Vandana Sahu,
  • Ashwani Kumar Patel,
  • A. Mounika,
  • P. V. Phanindra,
  • S. S. Vaish

摘要

The growth of a biocontrol agent at varying temperatures defines its utility and survivability over a long period. An experiment was conducted for knowing the behavior of Indian population of Catenaria anguillulae at varying temperatures Viz., 31 ± 1 °C, 34 ± 1 °C, 37 ± 1 °C, 40 ± 1 °C and 43 ± 1 °C using linseed oil cake agar medium. The experiment proved that the most of the isolates showed a significant increase (p = 0.5) in their growth up to 34 ± 1 °C except Ca-1, BHUC-9, BHUC-12, BHUC-36, BHUC-46 and BHUC-67. All the isolates managed to survive up to 40 ± 1 °C, whereas, forty per cent of them could manage to survive at 43 ± 1 °C. A temperature of 34 ± 1 °C is considered as the optimum for the growth of the fungus. This suggests the utilization of the virulent isolates according to their temperature preference during different cropping seasons. This is the first report on behavior of a large population of the fungus against varying temperatures.