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OCCURRENCE OF ANTHRACNOSE DISEASE INCIDENCE AND ITS SEVERITY ON GUAVA SEEDLINGS AT DIFFERENT LOCATIONS OF BANGLADESH (Pages : 21 - 31)

M.N. ISLAM, M.S.M. CHOWDHURY, M.M. RAHMAN, K.M. ALAM, M. ARIFUNNAHAR AND M.M. ALAM

Guava, a major fruit crop of Bangladesh, was surveyed during the period of July, 2010 to April, 2012 for the incidence of anthracnose disease and its severity. The study was carried out to observe the effect of temperature, relative humidity and rainfall on the incidence of anthracnose disease and its severity at seedling stage. The causal pathogen of anthracnose, Colletotrichum gloeosporioides was identified and its incidence and severity on guava at seedling stage was studied. A significant variation in development of the disease was observed in varied weather parameters. Occurrence of seedling anthracnose disease was positively correlated with temperature, rainfall and relative humidity. Therefore there were great variation of disease incidence and its severity on guava was evident from one location to another and season to season. These weather parameters should be critically addressed for the host-pathogen interaction and to find out the most appropriate time for combating the disease at minimum cost.Download


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