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The present studies on “Effect of Plant Growth Regulators on Growth Performance of Stem Cutting of Hardwickia binata Roxb” was carried out in the mist chamber of Institute of Forest Biodiversity, Dulapally, Kompally, Hyderabad, during January- April, 2021. The cuttings of Hardwickia binata Roxb were prepared from selected superior phenotypes from the surrounding environments of Kompally, Hyderabad. Hardwickia binata Roxb. is difficult to root and need auxin treatment and controlled environment to successful survival and rooting. The cuttings were treated with 0, 200, 500,1000, 1500, 2000 mg/l concentrations of IBA and IAA and planted in poly bags under mist chamber. The experiment was conducted in a completely randomized design. Analysis of variance was worked out to assess the variation in Hardwickia binata Roxb. for eight characters. Treatment with IBA at 2000mg was found to be the best treatment as it achieved maximum in survival percentage (52.64%), shoot length (31.92cm), rooting percentage (81.69%), number of roots per cutting (20.44) and root biomass (6.32g) followed by treatment with IAA at 2000mg/l (T10) achieved maximum. The performance increased with an increase in concentrations of both IBA and IAA. Among the two auxins treatments, IBA was found to be most effective, showed significantly higher values compared to IAA. It is possible to successfully multiply the Hardwickia binata Roxb. cuttings by treating with 2000 mg/l of IBA under controlled phyto-environmental condition. The study evolved an easy and efficient protocol for vegetative propagation of HardwickiabinataRoxb.via stem cuttings to establish clonal forestry.

To Study the Effect of Auxin Concentrations (IBA and IAA) on Growth Performance of Stem Cutting of Hardwickia binata (Roxb.)