Three varieties of turmeric viz. Salem, Rajapuri and Krishna were selected for present pathophysiological studies
under leaf spot (Taphrina maculas) and leaf blotch (Colletotrichum capici ) infection. Salem variety increase
protein in Colletotrichum infection as compare to other. All three varieties shows decrease in activity of nitrate
reductase and increase in acid phosphatase activity after infection. The activity of amylase was increased in
infected leaves of all varieties of turmeric.