Abstract
Rooting performances of girdled, blanched, girdle + blanched and non-conditioned cuttings prepared from summer growth of previously lopped mature trees of Grewia optiva were studied under mist after treating with 2000, 4000 and 6000 ppm of indole-3-butyric acid. All the cuttings were also treated with 2000 ppm of p-Hydroxybensoic acid before IBA treatment. In all the concentrations of IBA, preconditioning has greatly improved rooting over non-conditioning. Maximum rooting was recorded in gridle + blanched cuttings at 6000 ppm IBA closely followed by 2000 ppm or in girdled cuttings at 4000 ppm IBA. When considered the overall performance, the girdle + blanched cuttings at 2000 ppm IBA produced the best result.
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