First occurrence of foot rot of chickpea caused by Operculella padwickii in Bangladesh and Nepal uri icon

abstract

  • hile conducting diagnostic surveys in March 1999 to determine the chickpea disease prevalence in the rice-wheat cropping systems of Bangladesh and Nepal, a new disease of chickpea showing symptoms of foot rot (O. padwickii (Phacidiopycnis padwickii)) was observed. Dark brown to black sunken lesions on cotyledons and collar region of the plant were observed. Later, the lesions enlarged, became sunken, dark brown to black, extending to the epicotyl and basal tap root of the plant. In advanced stages of disease development, a complete girdling of the plant in the collar region took place, resulting in the wilting and death of the plants. Leaves were pale green and finally became straw-coloured. In culture, the fungus produced white mycelium and pycnidia. Long and short conidiophores were observed. The pathogen was confirmed as O. padwickii. Pathogenicity tests were conducted and the pathogen was reisolated from the infected plants. This is thought to be the first report of O. padwickii on chickpea in Bangladesh and Nepal

publication date

  • 2002