Journal of Advances in Biology & Biotechnology

An experiment was conducted at Horticulture Research Farm, Department of Horticulture, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj during 2021-22 and 2022-23. The experiment consisted of thirteen treatments viz T₁-   control, T₂- 10 ppm triacontanol, T₃-15 ppm triacontanol, T₄-20 ppm triacontanol, T₅- 25 ppm triacontanol, T₆- 5 ppm brassinolide, T₇-10 ppm brassinolide, T₈-15 ppm brassinolide, T₉-20 ppm brassinolide, T₁₀-100 ppm nitrobenzene, T₁₁- 200 ppm nitrobenzene, T₁₂-300 ppm nitrobenzene, T₁₃- 400 ppm nitrobenzene which were arranged in Randomized Block Design with three replications.  Foliar application of bio-stimulants was done twice at fifteen days interval. Analysis of the data indicated that treatment T₉ (brassinolide @ 20 ppm) reported to be best for parameters namely days taken for first flower opening from bud emergence (33.2 days), pedicel length (9.2 cm), number of flowers/stalk (3.8), flower length (15.0 cm), flower diameter (16.4 cm) and flower yield (9.0 flower stalks/plot and 33.3 flower stalks/m²).