Effect of Auxins on Shoot and Root Growth in an Endangered Medicinal Plant Guggal [ Commiphora wightii (Arnott.) Bhand.]

An investigation was carried out to study the effect of IBA and NAA on vegetative propagation of guggal [Commiphora wightii (Arnott.) Bhand.] through cuttings, at Navsari Agricultural University, Navsari. The experiment consists of ten treatments: IBA, NAA and their combination, each at 2000, 4000 and 6000 mg l^-1 along with control, replicated thrice. Ten cuttings per each treatment and per replication were planted. Planting media used were: sand, soil and vermicompost, in 2:1:1 ratio. Cuttings were dipped for five minutes in solutions of IBA, NAA and their combinations. Cuttings treated with 4000 mg l^-1 IBA proved to be the best for shoot and ischolar_main responses, viz., days taken to first sprouting (11.67 days), number of shoots per cutting (10.27), number of leaves in the longest shoot (44.07), length of longest shoot (51.69cm), diameter of the longest shoot (4.40mm), ischolar_maining percentage (61.19), number of primary ischolar_mains per cutting (15.01), length of the longest primary ischolar_main (26.36cm), and number of secondary ischolar_mains (22.37) and length of the longest secondary ischolar_main (21.40cm) per cutting. It was concluded that IBA @ 4000 mg l^-1 was most effective for obtaining maximum shoot and ischolar_main growth.