BIOCHEMICAL CHANGES IN ROSA FLORIBUNDA INFECTED WITH CARBENDAZIM RESISTANT AND SENSITIVE ISOLATE OF ALTERNARIA ALTERNATA

Abstract

Leaf spot of rose caused by Alternaria alternata is one of the most wide spread disease. In the present study healthy and infected leaves were used to study biochemical changes in the host plant. The infected plant showed a decrease in the quantity of total sugar, reducing sugar, DNA and RNA content. While starch, total ash and phenol content significantly increased when compared to the healthy plant.