| Pak. J. Bot., 38(1): 211-216, 2006. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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FACTORS AFFECTING DEVELOPMENT OF COLLAR ROT DISEASE IN CHICKPEA AZHAR HUSSAIN, SH. MUHAMMAD IQBAL* NAJMA AYUB AND M. ASHRAF ZAHID*
Abstract: The study was conducted during the winter season of 2003 to assess
the effect of factors like inoculum potential, age of the seedling and
soil type on the incidence of collar rot disease in chickpea caused
by Sclerotium rolfsii Sacc. An increase in the inoculum load
of the pathogen enhanced the disease incidence. Among the techniques
used for pathogenicity, use of inoculum in the form of wheat grains
fully impregnated with mycelium of the pathogen was found to be simple,
feasible and highly effective. In case of the soil textures, the mortality
of seedling was higher in clayey soil. Younger seedlings were more susceptible
and the susceptibility decreased with the increase in age of seedlings.
Department of Biological Sciences, Quaid-i-Azam University, Islamabad,
Pakistan. |
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