Department of Horticulture and R. I. T. L., G. B. Pant University of Agriculture and Technology, Pantnagar-263 145.
Moisture content, dry matter accumulation, total chlorophyll content and concentration of some important macro and micro-nutrients in the leaves and panicles of healthy and malformed shoots of mango Cv. Chausa were analysed. Malformed panicles showed a higher dry matter accumulation and a lower moisture content as compared to healthy ones. Total chlorophyll content of the leaves of the shoot bearing malformed panicles was lower. There was no significant change in the nitrogen content in either leaves or panicles. Phosphorus and potassium content was not changed in the malformed panicles but there was a slight decline in the concentration of these two nutrients in the leaves of malformed shoot. Calcium content were lower in the malformed panicles and also in the leaves of shoots bearing such panicles. Copper and Manganese content slightly declined in the leaves but were slightly higher in the panicles of the malformed shoots. It appears that mineral nutrients disturbances are not the primary cause of mango-malformation.
