Synergistic Effect of Rooting Hormones and Media on Rooting Potential of Standard Chrysanthemum (Chrysanthemum morifolium Ramat.) var. Snow Ball
摘要
Standard varieties are very popular and grown commercially all over the world, but are having low propagation rate and difficult to root that has been taken up as an objectionable feature in this study. The terminal stem cuttings of the chrysanthemum var. ‘Snow Ball’ were quick dipped (5 s) in rooting hormones, IBA (100–500 mg L−1) and NAA (100–500 mg L−1) and the cuttings were planted in rooting media (cocopeat, burnt rice husk, sand and vermicompost individually 100 v/v)). The study was conducted as per factorial completely randomized block design (FCRBD) with 3 replications, 11 main treatments and ten cuttings per treatment to standardize the optimum concentrations of rooting hormone along with the best rooting medium for propagation of quality planting material of chrysanthemum. The statistical data revealed that IBA @ 400 mg L−1exhibited the best results in terms of least days for initiation of roots, the highest average length of root and the survival percentage of rooted cuttings. This treatment was found to be at par with NAA @ 200 mg L−1 with respect to the highest percent survival. Among the rooting media, burnt rice husk (BRH) exhibited the highest rooting percentage and root number per cutting. Based on the results, cutting treatment with IBA @ 400 mg L−1 or NAA @ 200 mg L−1 is recommended to enhance survivability and rooting percentage in Standard chrysanthemum ‘Snow Ball’.