9.Influence of gibberellic acid (GA3) on growth, physiological and yield parameters in Ajwain (Trachyspermum ammi L.)
Mohit Namdeo, Richa Sharma and Bahadure D. M.
A pot experiment of the effect of GA3 conduct on Trachyspermum ammi L (Ajwain) cv- R.A.19-80 during the rabi season of 2014-2015. The different concentration of GA3 (15 ppm, 25 ppm, 35 ppm, 50 ppm, 60 ppm, 70 ppm, 80 ppm and 100 ppm) sprayed on the crops to study the growth behaviour, yield attributes and physiological characteristic of Ajwain with three replications. Spray given is two times at 25 and 60 DAS. The highest plant height, plant fresh weight, plant dry weight, relative water content, number of umbels, 1000 seed weight and seed yield was recorded by the treatment of GA3 @ 100 ppm. The foliar application of GA3 significantly increased vegetative growth, yield and physiology of Ajwain compared with control. Based on the result, It can be concluded that foliar application GA3 @100 ppm had significantly on plant growth flowering and yield potential.