Conidial germination, appressoria formation and penetration are most important stages of infection process in rice blast pathogen . Magnaporthe oryzae, and temperature rise due to climate change is expected to change infection process of pathogen. Temperature has significant influenced on all components of infection process . conidial germination, appressoria formation, germ tube growth. All the components of infection process are higher at optimal temperature (27°C) as compared to both suboptimal (22°C) and supraoptimal (32°C) temperatures for M. oryzae. | Effect of temperature on rice blast infection process with emphasis on appressoria formation by Magnaporthe oryzae