Effect of Indole-3-butyric Acid, Aspirin and Natural Plant Extracts on Rooting of Chrysanthemum (Dendranthema grandiflora L.) cv. Flirt

Abstract

Study entitled “Effect of Indole-3-butyric acid, Aspirin and Natural Plant Extracts on Rooting of Chrysanthemum (Dendranthema grandiflora L.) cv. Flirt” was carried out in form of pro-tray experiment under polyhouse of the Department of Floriculture and Landscaping of College of Agriculture, OUAT, Bhubaneswar with the objective to investigate the effect of Indole-3-butyric acid (IBA), Aspirin and Natural Plant Extracts on rooting of cuttings of chrysanthemum by using Completely Randomized Design (CRD) with 8 treatments and 3 replications at 10, 15 and 20 DAP. Results obtained showed that the treatment (T4)  i.e., IBA 750 ppm + Aspirin 40mg/l of distilled water proved to be the best treatment for rooting in Chrysanthemum cuttings in comparison to other treatments since it exhibited the best results on cuttings with minimum number of days to callus formation (2.40), least number of days for root initiation (6.83), highest number of roots per cutting (15.10 at 10 DAP, 33.93 at 15 DAP, 45.83 at 20 DAP), highest number of secondary roots per cutting at 20 DAP (6.17), maximum length of longest root per cutting (9.15 mm at 10 DAP, 19.58 mm at 15 DAP, 28.90 mm at 20 DAP), maximum fresh weight of roots per cutting (0.23 gm at 15 DAP, 0.34 gm at 20 DAP), lowest number of senescence leaves per cutting (0.33 at 10 DAP, 0.03 at 20 DAP) and highest rooting percentage in cuttings (96.67 %). Naturally available plant extracts and products are organic, non-toxic, readily available at low cost and contain phytohormones and active compounds stimulating rooting in cuttings, infection prevention and support plant growth. These can be used as effective alternatives of synthetic rooting hormones that are expensive and toxic to plant environment at high concentrations. Thus, this opens up many opportunities for further research in future for use of plant extracts and natural products in commercial propagation of floricultural crops.