Vol. 11, Special Issue 2 (2022)

Author(s):
Butulla Rashid, KM Malik, IT Nazki, W Shah, Insha Nazir and N Majid

Abstract:
The present work was conducted to investigate the application of 6-benzyl amino purine and Spermidine for improving vegetative, flowering and chlorophyll contents of Gladiolus (Gladiolus× hortulanus) cv. Passos”. Results revealed that both the plant growth regulators increased plant height, leaf number, leaf area, and chlorophyll content, days to spike emergence, colour break and first floret opening as compared to control. Increasing concentration of both PGRs significantly improved all the parameters whether foliar spray of BAP or sperimidine and/or in their interaction. However, Spermidine significantly increased leaf area followed by BAP, while as BAP significantly improved plant height, leaf number, chlorophyll content (SPAD), spike emergence, colour break and first floret opening followed by sperimidine. Regarding concentrations, 200 mg L^-1 performed the best for plant height, leaf number, leaf chlorophyll content, days to spike emerergence, colour break and first floret opening followed by 150 mg L^-1, 100 mg L^-1 and control treatment.