Authors : P. A. Lambat, V. S. Dongre, K. J. Cherian and A. P. Lambat
Page Nos : 448-451
Climate is a measure of the average pattern of variation in temperature humidity atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time. Plant pathogens are ubiquitous in natural and managed systems, being among the first to demonstrate the effects of climate change due to the numerous populations, ease of reproduction and dispersal and short time between the generations. The available data clearly suggests that increased CO2 would affect the physiology, morphology and biomass of crops. Elevated CO2 and associated climate change have the potential to accelerate plant pathogen evolution which may, in turn, affect virulence. Increased CO2 will lead to less decomposition of crop residues and as a result soil borne pathogens would multiply faster on the crop residues. In view of the study results, it is concluded that there is noticeable change in the change in percentage of CO2 during the last few decades. It can be concluded that there is noticeable change in damages caused by diseases to crop yield during the last few decades In view of the obtained data and it is concluded that the crop yield has gone down noticeably as a function of climatic changes due to considerable increase in disease intensity.
Keywords : Climate Change, Elevated CO2, Plant Pathogen, Disease intensity, Decades.