Dry root rot disease


  • Indian Scientists have identified that high-temperature drought conditions and low soil moisture content are favorable conditions for dry root rot (DRR), a disease that damages the roots or girdles the trunk in chickpea.

  • This work will be useful for the development of resistant lines and better management strategies.

About Dry root rot disease

  • Dry root rot disease causes reduced vigour, dull green leaf colour, poor new growth, and twig dieback.
  • If extensive root damage occurs, the leaves suddenly wilt and dry on the tree. 

    Dry root rot disease
    Credit: PIB
  • The increasing global average temperature is leading to appearance of many new plant disease-causing pathogens at a rate hitherto unheard of, one of them being Macrophomina phaseolina, a soil-borne necrotrophic that causes root rot in chickpea.
  • Currently, the central and southern states of India have been identified as the prime chickpea DRR hotspots with an overall 5 – 35% disease incidence.
  • Macrophomina survives in a wide range of environmental conditions, even at extremes of temperature, soil pH, and moistures.
  • In chickpea, DRR is highly prevalent during the flowering and podding stages coinciding with high temperature and drought conditions.

Source: PIB

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