CHARACTERIZATION OF CONDUCIVE ENVIRONMENTAL CONDITIONS FOR MUNGBEAN YELLOW MOSAIC VIRUSDISEASE INCIDENCE ON MUNGBEAN GERMPLASM

Abstract

Conducive environmental conditions for the development of Mungbean yellow mosaic virus (MYMV) diseasewere characterized. Correlation of environmental conditions (maximum and minimum air temperature, relative humidity, rainfall, clouds and windvelocity) with MYMV disease incidence was determined on twenty varieties/lines of mungbean. It was revealed that maximum temperature had significantly negative correlation with the disease incidence. The disease incidence increasedwith the decrease of minimum temperature.Minimum temperature and wind velocity had non-significant correlation with MYMV disease incidence. It was also found that relative humidity and rainfall had significant correlation with Mungbean yellow mosaic virusdisease incidence.