Effect of plant growth regulators and nano zinc on growth, flowering, yield and quality of litchi (Litchi chinensis L.) cv. Purbi

Abstract

The present experiment entitled “Effect of plant growth regulators and nano zinc on growth, flowering, yield and quality of Litchi (Litchi chinensis L.) cv. Purbi” was conducted at Department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, during the session 2023 - 2024. The experiment was laid out in randomized block design with three replications, and the study consists of ten treatment combinations including control by using different treatment the highest value of plant height (207.80cm), plant spread (131.83cm), chlorophyll content (56.10), flower panicle/plant (21.00), flower/tree (1575.00), fruits/tree (730), Fruit length (39.67 mm), fruit weight (18.28g), fruit diameter (31.33 mm), fruit volume (12.53 cm3), Peel weight (2.30 g), Juice content (37.47ml), Aril weight(11.93g), was recorded in T2 (NAA @ 20 ppm + Nano Zinc @100 ppm) All the treatments were significantly superior in their flowering, fruit yield and quality of litchi over control (T0). Increase flowering, fruit yield was might be due to the application of Nano zinc NAA as Indian soils are deficient of zinc and auxin helps in cell division.