The statistical analysis of the data on the incidence of bollworms in relation to weather factors revemed the existence of significant positive conislation with the maximum temperature (t = 0.742) and sunshine hours (r = 0.518) as well as significant negative correlation with the minimum temperature (t = - 0.341) , morning relative humidity (r = - 0.67) evening relative humidity (r = - 0.746) intensity of rainfall (r = - 0.372) and number of rainy days (r = - 8.651) Multiple regression analysis has led to the conclusion that increase in maximum temperature by 1°C would result in an increase of 4.17% bollworms damage while one day increase in rainfall would decrease the bollworma damaga by 4.06%
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Madras Agricultural Journal (MAJ)
Madras Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641
003
Tamil Nadu, India.
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