Effect of physical factors on development of anthracnose of mango fruits.
Rathod G. M.
Author Affiliation: Department of Botany, Shrikrishna Mahavidyalaya, Gunjoti, Dist. Osmanabad (M. S.), India.
Current Botany 2 : 15-16
Abstract : Studies were conducted to determine the impact of environmental factors on the development of anthracnose (Glomerella cingulata) on mango cv. Alphanso fruits. Fruits were collected from the market and surface sterilized with 0.1% HgCl2. A 2-mm injury on the fruits was made. The fruits were then dipped in a G. cingulata spore suspension for 2 minutes and placed in sterilized polythene bags. It was incubated at different temperature and relative humidity (RH) levels and on the eighth day of incubation, the rot severity was recorded as percent fruit area infected. Results showed that at 25°C and at 100% RH, anthracnose severity was the highest. Disease development was absent at 10°C and at 30% RH. The percentage disease severity increased from 30 to 100% RH.