EFFECT OF GIBBERELLIC ACID AND SILICON ON MORPHOLOGICAL CHARACTERS OF DIFFERENT TOMATO VARIETIES

The experiment was conducted at research field, Sher-e-Bangla Agricultural University, (SAU) Dhaka-1207, Bangladesh during the period from October 2016 to March 2017 to investigate the effect of gibberellic acid and silicon on changes in morphological characters of different tomato varieties. The experiment was consisted of two factors as follows: factor A (Different varieties of tomato) viz., V₁ = BARI tomato 2, V₂ = BARI tomato 14, V₂ = BARI tomato 15 and V₄ = BARI tomato 16; factor B (Different composition of GA3& Si), viz., H₀ = Control, G = 20 ppm GA₃, Si= 0.4 mM Silicon and GSi = 20 ppm GA₃ + 0.4 mM Silicon. The experiment was laid out in Randomized Complete Block Design (RCBD) with three (3) replications. Result demonstrated that, most of the parameters had significantly influenced by the application of silicon in combination with gibberellic acid on different tomato varieties. Result revealed that, the variety, BARI tomato 14 exhibited the superior one over other tomato varieties for most of the traits studied under present experiment. Among the treatments, GSi, i.e., 20 ppm GA₃ + 0.4 mM Silicon performed the best one for most the cases.