Abstract

Author:
Md. Ibrahim Ali, M. H. Rahman, Md. Hasanuzzaman, Tania Sarmin, Nowrin Islam Toma, Md. Nur Nobi Alam, Md. A. Wadud Mollah, Syed Tanvin Abir

Doi: 10.26480/trab.01.2025.45.49

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

A field experiment was conducted at Farmers field Fulbaria, Mymensingh and Tarail, Kishoreganj during the Rabi season 2021-22 and 2022-23. The objective of the study was to find out the effect of plant growth regulators (PGR) on growth, yield and yield contributing characters of rapeseed. There the four common plant growth regulators namely Flora (Nitrobenzene 3g/L), Power (Gibberellic acid 20%, 1g/20L), Bioferty (Auxin + Amino acid 3g/L), Bumper folon (Chlorophenoxy acidic acid 3g/L) were used with the popular BINA released rapeseed variety Binasarisha-9 and Binsarisha-11. The plant growth regulators were sprayed over the rapeseed field at the vegetative growth stage at 30 days after sowing. The experiment was conducted through randomized complete block design (RCBD) with three replications. The unit plot size was 5m×4m. Data on yield and yield components were recorded at harvest and analyzed statistically following the experimental design and means were compared with LSD. The result of the experiment showed that Bumper folon (Chlorophenoxy acidic acid 3g/L) produced statistically higher seed yield (1.8 tha-1) among the plant growth regulators followed by Bioferty (Auxin +Amino acid 3g/L) and Flora (Nitrobenzene 3g/L) (1.7 t ha-1). The plant height (92.4 cm) and 1000 seed weight (4.1 g) also highest for Bumper folon (Chlorophenoxy acidic acid 3g/L) but maturity duration was lowest (78.2 days).