Effect of plant growth regulators on growth, flowering, yield and quality of tomato (Solanum lycopersicum L.)

Abstract

The experiment was laid out in randomized block design with three replication at horticultural research farm of Udai Pratap Autonomous College, Varanasi, Uttar Pradesh during year 2015-16. Max/min, temperature/humidity was measured 29 0C/12.4 0C, 89%/63%. The objectives are to study the effect of varying levels of NAA, 2, 4-D and GA3 on growth, quality and yield of tomato and to ascertain the best concentration of NAA, 2, 4-D and GA3 for vegetative growth and fruit quality of tomato. The experiment consisted tomato variety viz. kashi vishesh (H-86) and different levels of NAA (15, 30, 45 ppm), 2, 4-D (5, 10, 15 ppm) and GA3 (20, 30, 40 ppm) of different concentrations were used. From the result it was observed that concentration of GA3 @ 40 ppm concentration showed significant effects on growth, flowering, yield and quality of tomato.