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Chilli is the major commercial crop of Andhra Pradesh and Guntur district ranks first in area,
production and productivity in the state. The present study was conducted for assessing the influence
of weather parameters, viz., temperature (minimum and maximum), sun shine hours, annual and
seasonal rainfall behavior on the chilli production and productivity in Guntur district. Correlation
of weather parameters with production and productivity was done based on rainfall pattern (i.e. the
years where annual rainfall is <750mm, 750 to 1000 mm and >1000mm). The study revealed that
the rainfall had significant positive correlation with production and productivity when rainfall was
<750mm.Temperature had significant positive correlation while other weather parameters had
negative correlation when rainfall was 750-1000 mm. When rainfall had >1000mm, temperature
had significant positive correlation, where as rainfall in winter season had significant negative
correlation. The study indicated the impact of weather conditions on production and productivity of
chilli in Guntur district of Andhra Pradesh and may help in developing forecasting models based on
climatic conditions.
Keywords: Climate, Chilli, weather parameters, rainfall, temperature.