EFFECT OF NITROBENZENE ON PLANT GROWTH, YIELD AND MINERALS CONTENT OF TOMATO

Abstract

The experiment was conducted at the Department of Agricultural Chemistry, Sher-eBangla Agricultural University,

Dhaka 1207, during the period from November 2017 –August 2018 to find out the effect of nitrobenzene on plant growth, yield and minerals content of tomato. The experiment comprised of two factors. Factor 1- tomato varieties, V

(BARI Tomato- 1) and V

(BARI Tomato-2) and factor 2- Plant Growth Retardant ni t r obenzene doses (4 Doses): T 2 0 = 0 mL, T 1 =1.5 mL, T 2 = 2 mL, T = 2.5 mL was outlined in Completely Randomized Block Design (RCBD) with four replications and there were all together 32 plots. Application of nitrobenzene significantly influenced the height, yield and minerals content of tomato. The highest plant height was found from V 1 3

(97.25 cm) and T

(97.5 cm) whereas the shortest from V 2

(85.25 cm) and T 3 0

(76.00 cm) at harvesting time. In case of treatment combination, the tallest plant (95.5 cm) was found in V 1 T

as well as the shortest plant (76.0 cm) was found in V 1 T 3 0

at final harvest time. Considering variety, maximum yield per hectare (70.98 t) was observed in V 2

and minimum (59.0 t) in V . In case of nitrobenzene treatment, maximum yield per hectare (82.62 t) was observed in T 2 1

and minimum (46.96 t) in T . In case of combined effect of variety and nitrobenzene doses, maximum fruit yield per hectare (93.85 t) was observed in V 2 T 2

and minimum (40.4) in V 1 T . For nutrient analysis, combined effect of variety and nitrobenzene

doses V 2 T 2 3 observed maximum nutrient content, nutrient content (K 2.47%, Na 0.12% and P 0.521%) and Ca content in V 2 T performed highest nutrient where minimum ( K 0.95%, Na 0.07%, Ca 0.03% and P 0.421%) in V 1 . From this experiment, 2 mL dose of nitrobenzene and variety V

(BARI Tomato-2) performed best yield and minerals content.

2 1 T 3 3 1