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Stimulation of rooting on Hevea spp. cuttings by application of plant regulators

This experiment was carried out to evaluate the effect of IBA, NAA, IAA and SADH on rooting of stem cuttings of Hevea brasilien sis. The stem cuttings were taken from the base of 18 months old plants, and then immersed in water or IBA, NAA, IAA and SADH solutions at concentration of 2500 ppm, by 1 hour.Pllants treated with IBA showed higher percentage of rooting compared with check treatment. SADH promoted increase in bud break. NAA and IAA reduced the number of cuttings alive, budded and with callus formation.


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