Effect of Etiolation and IBA on the Rhizogenesis of Magnolia liliiflora

Abstract

The present investigation was conducted at experimental field of the Division `of Floriculture and Landscape Architecture, Sher-e-Kashmir University of Agricultural sciences &Technology, Shalimar Srinagar during the year 2023-24. The design of the experiment was CRD with 3 replications. The equal number of etiolated and non-etiolated cuttings were taken from Magnolia liliiflora plants treated with Indole-3-butyric acid at 0 ppm (control), 1000 ppm, 2000 ppm, 3000 ppm. It was summarized that etiolation followed by IBA treatment significantly enhanced the rooting in Magnolia liliiflora. Results indicated that etiolation + IBA 3000 ppm provided the best outcomes across most of the parameters. The treatment produced the highest number of primary roots (6.55), secondary roots (20.66,), root length (12.89 cm), rooting percentage (55%)and survival rate (63.97%) in Magnolia liliiflora. It also resulted in the shortest days to rooting 55.22 days in Magnolia liliiflora. These findings suggest that etiolation and using of higher concentrations of rooting hormones, especially IBA at 3000 ppm, significantly enhances propagation success in the Magnolia liliiflora.