Climate change and changing scenario of plant diseases in semi arid tropics

Pande, S and Sharma, M (2011) Climate change and changing scenario of plant diseases in semi arid tropics. In: Plant Pathology in India: Vision 2030. Indian Phytopathological Society, New Delhi, pp. 128-131. ISBN 978-81-8465-959-7

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Increasing climate variability with the change in climate is recognized unequivocally. With the changing climate patterns and cropping systems, host, pathogen and favourable environment interactions are leading to diseases epidemics in a range of crops. Three essential components are required simultaneously for a disease to occur: a virulent pathogen, a susceptible host and favourable environment and the effect over time of the evolutionary forces on living populations leading to new disease epidemics often referred as “disease tetrahedran”. Even with minor deviations from the normal weather, the efficiency of applied inputs and food production is seriously impaired (Rotter et al., 1999). Agriculture production of rainfed regions, which constitute about 65% of the area under cultivation and account for about 40-45% of the total production in India, is expected to suffer severe as a result of climate change (Agarwal, 2003).

Item Type: Book Section
Subjects: Others > Climate Change
Depositing User: Mr Siva Shankar
Date Deposited: 15 Feb 2012 06:52
Last Modified: 15 Feb 2012 10:23
Acknowledgement: UNSPECIFIED
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