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Effect of Different Concentrations of IBA on Rooting in Guava (Psidium guajava L.) in Air Layering

Shailja Bansal, Homraj A. Sahare and Gurpreet Singh
Department of Horticulture, School of Agriculture, Lovely Professional University, Phagwara-144 411 (Punjab),
*(e-mail :,; Mobile : 98775 20188)
(Received : July 8, 2021; Accepted : August 10, 2021)


The study was conducted to estimate the effect of different concentrations of IBA on rooting behaviour
in guava (Psidium guajava L.) in air layering during 2019 at guava orchard, Maheru, Lovely Professional
University, Phagwara, Punjab. The ten treatments with three replications comprised T1– Control, T2– IBA @ 5 g/l, T3– IBA @ 6 g/l, T4– IBA @ 7 g/l, T5– IBA @ 8 g/l, T6– IBA @ 9 g/l, T7– IBA @ 10 g/l, T8– IBA @ 11 g/l, T9– IBA @ 12 g/l and T10 – IBA @ 5000 ppm (liquid). Observations of the root characters were recorded and analyzed in factorial design of RBD. The results indicated that IBA @ 8 g/l performed better than control and produced the best results in root parameters such as number of days to root (31.7), primary roots (59.30), primary root length (8.74 cm), primary root diameter (0.89 mm), secondary roots (45.57), secondary root length (5.73 cm), fresh root weight (0.93 g/l) and dry root weight. Thus, based on present study, it was concluded that IBA @ 8 g/l gave best results for root parameters for propagating the guava via air layering.
Key words : : IBA, guava, rooting powder, clonal propagation