Response of salicylic acid on flowering, floral malformation, fruit set, yield and associated bio-physical and biochemical characters of mango.
Singh V. K., Saini J. P., Misra A. K.
Author Affiliation: Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow 227 107, India.
Indian Journal of Horticulture 58 : 196-201
Abstract : The effects of salicylic acid (SA at 0, 500, 1000, 2000, or 4000 ppm) sprayed at flower bud initiation stage on mango cultivars Amrapali and Dashehari were studied in Lucknow, Uttar Pradesh, India [date not given]. SA delayed flower bud initiation, with the greatest delay observed in Amrapali (13 days) and Dashehari (11 days) sprayed with 2000 ppm SA. On the other hand, SA enhanced flowering, fruit set, leaf temperature, and yield and reduced transpiration rate in both cultivars. SA at 2000 ppm gave the highest yield (44.3 in Amrapali and 48.7 kg/tree in Dashehari); photosynthetic rate (7.84 and 8.12 µ mol m2-1 second-1); intercellular C content (322.40 and 425.94 ppm); stomatal resistance (0.472 and 0.456 second/cm); and fruit total sugar (18.2 and 17.8%), reducing sugar (9.1 and 8.20%), and ?-amylase activity (70.9 and 70.8 mg maltose/g in 30 minutes). The lowest rate of malformed panicles (3.7 and 3.0%) was also recorded for 2000 ppm SA.