Nahid Sultana, Md. Abdur Razzaque, Md. Tazul Islam Chowdhury, Md.
Abdul Owhab Mridha and Tuhin Suvra Roy
*Corresponding
Author’s E-mail: nahidshovra71@gmail.com
Abstract
The
experiment was conducted at the Department of Agricultural Chemistry,
Sher-e-Bangla Agricultural University, Dhaka 1207 during the period
from November 2017 – August 2018 to find out the effect of plant
growth retardant nitrobenzene on plant height, yield and minerals
content of tomato. The experiment comprised two factors. Factor 1:
Tomato varieties (V1 (BARI Tomato- 1) and V2 (BARI Tomato-2); and
factor- 2: four plant growth retardant doses, viz, nitrobenzene (T1=
0, T2=1.5, T3=2 and T4=2.5 ppm). The trial was outlined in Randomized
Complete Block Design (RCBD) with four replications. Application of
nitrobenzene significantly influenced the height, yield and mineral
contents of tomato. The highest plant height was found from V1 (97.25
cm) and T0 (97.5 cm) whereas the shortest from V2 (85.25 cm) and T3
(76.00 cm) at harvesting time. In case of treatment combinations, the
tallest plant (95.5 cm) was found in V1T0 as well as the shortest
plant (76.0 cm) was found in V1T3 at final harvest time. Considering
variety, maximum yield per hectare (70.98 t) was observed in V2 and
minimum (59.0 t) in V1. In case of growth retardant treatment,
maximum yield per hectare (82.62 t) was observed in T2 and minimum
(46.96 t) in T3. In case of combined effect of variety and growth
retardant doses, maximum fruit yield per hectare (93.85 t) was
observed in V2T2 and minimum (40.4) in V1T3. Combined effect of
variety and growth retardant doses, the maximum nutrient nutrient (K,
Na, and P) content (2.47% N, 0.12% Na and 0.521% P) were observed in
V2T2 and 0.065%Ca content in V2T1 where minimum (0.95%N, 0.07%Na,
0.03%P and 0.421% Ca) in V1T3. It was concluded that at 2 ppm dose of
growth retardant nitrobenzene performed the best yield and nutrient
content.
Key
words: Nitrobenzene, growth, yield, mineral and tomato.
Read full article here
