Effect of urea and NAA on fruit retention and physicochemical composition of mango (Mangifera indica L.) cv. Langra.
Singh J. N., Singh D. K., Chakravarty D.
Author Affiliation: Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
Orissa Journal of Horticulture 22 : 26-30
Abstract : In an experiment conducted in 1987, 20-year-old mango trees were sprayed at the pea stage on 15 Mar. with aqueous solutions of urea (2 or 4%), NAA (10 or 20 p.p.m.), or mixtures of both chemicals. Compared with unsprayed plants, those treated with urea and/or NAA showed an increased fruit retention, and also increases in fruit length, diameter, weight and fruit yield per panicle. Fruit TSS, ascorbic acid, and reducing, non-reducing and total sugar concentrations were also increased, whereas acidity was decreased. The interaction of urea and NAA was significant for fruit retention and physical characters but not for chemical composition.