Achievements

• Rainfall climatology of eastern zone of Haryana comprising Ambala, Kurukshetra, Karnal, Jind, Panipat and Sonepat districts was studied.
   
• Crop efficient zones in the state for pearlmillet, chickpea, rapeseed and mustard crops were delineated utilising of long term data (1958-1990) on area, production, seasonal rainfall and soil types.
   
• The state of Haryana was divided into six chickpea and pearlmillet production zones having varying productivity and spread. Productivity patterns of pearlmillet and rapeseed/mustard crops were analysed in relation to annual variability in weather in the different zones. Improved management practices were suggested.
   
• Detailed phenology and thermal requirements at different developmental stages for pearlmillet and mustard crops were quantified.
   
• Radiation and energy balance in mustard crop revealed that sensible heat flux was as high as 25%. Higher grain yields were correlated with higher radiation and thermal use efficiency at the seed filling stage. These could be of predictive value.
   
• Regressions for estimation of dry matter and grain yield in mustard were developed using the thermal regime, vapour pressure deficit and sunshine hours. 
   
• Weather conditions associated with western disturbances, conducive for incidence of aphids in mustard were identified.
   
• Based on data for 12 seasons, minimum temperature, relative humidity during soft dough stage in wheat, number of rainy days and total rainfall from sowing were identified as the parameters influencing to incidence and spread of Karnal Bunt disease.