INFLUENCE OF SALICYLIC ACID AND MICRONUTRIENTS ON MORPHOPHYSIOLOGY AND YIELD ATTRIBUTES OF TOMATO IN SUMMER

Abstract

A pot experiment was conducted in the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka, during the period from April 2016 to September 2016. The two factors experiment was laid out in Complete Randomized Design with four replications. Factor A is different doses of salicylic acid viz. S 0 : Control, S 1 : 0.25 mM Salicylic acid, S 2 : 0.5 mM Salicylic acid and factor B is different levels of micronutrients viz. M 0 : Control, M 1 ii

: 20 mg of zinc, M 2 : 2 mg of boron, M 3 : 10 mg zinc + 1 mg boron, M 4 : 20 mg zinc + 2 mg boron. The experimental results showed that micronutrients and salicylic acid significantly affects morphology, physiology, yield contributing characters and yield of tomato. In case of salicylic acid, the highest yield per plant (1260.40 g) was found in S 2 and the lowest yield (1099.50 g) was found in S 0 . In case of micronutrients, the highest yield per plant (1691.50 g) was found in M 4 and the lowest yield (793.50 g) was found in M 0 . The interaction effect of salicylic acid and micronutrients influenced all most all parameters of morphophysiological and yield attributing characters of tomato, where the highest yield was (1872.22 g) was found in S 4 (20 mg zinc + 2 mg boron and 0.5 mM salicylic acid) and the lowest yield (736.04 g) was found in S 0 M 0 (Control Condition). These results suggest that salicylic acid and micronutrients can alleviate the detrimental effect of summer to increase the yield of tomato.