Effect of IBA on Rooting and Growth of (Ixora chinensis L.) Terminal Cutting

Abstract

The experiment was conducted at College of Horticulture, Dapoli under Dr. Balasaheb Konkan Krishi Vidyapeeth, Dapoli, in 2023. It comes under tropical location with an average well distributed rainfall 3500-4000 mm during June to October. The soil is come under lateritic textural class varied with loam, clay, sandy loam. Ixora is popular ornamental but difficult to root plant was used for the experiment. The experiment was laid   out   in randomized block design with eight treatments and three replications. Mature terminal cuttings of size 10-15 cm length with 4-5 leaves are dip for 5 min in the solution consisting different Indole Butryic Acid concentrations i.e. (control) 250, 500, 1000, 1500, 2000, 2500, 3000 ppm solutions. The cuttings under study recorded significant variation with respect to all the parameters, The results showed that among all treatments survival percentage (60%) maximum plant height (18.17cm), maximum number of leaves (14.08), stem girth (3.91 mm), longest root length (9.03cm), number of secondary roots (17.93), fresh and dry weight of shoot ( 3.55, 1.03g), fresh and dry weight of root (1.40, 1.18g) was recoded in T4 treatment consisting 1000 ppm IBA solution. However, for maximum number of primary roots (7.27) was observed in T3 (500 ppm) treatment.