Effect of meteorological parameters on Karnal bunt incidence in wheat under different agroclimatic zones of Punjab

To quantify the effect of meteorological parameters on incidence Karnal bunt in wheat crop, an investigation was done using 9 to 12 season’s data Bathinda and Ludhiana stations Punjab. Maximum temperature during March range 25-31oC, minimum February (8.5-11.0oC), morning evening relative humidity 85-95 40-60 per cent respectively, rainfall more than 25 mm with sunshine hours 5.5-9.0 hrs/day mid favour crop. showed significant negative correlation whereas positive disease at both locations. Morning incidence. Rain amount rainy days significantly influenced Sunshine had Backward multiple linear regression (BMLR) analysis indicated maximum temperature, play role Ludhiana. However, Bathinda, time humidity, rain played role.