Effects of indolebutyric acid on adventitious root formation from semi-hardwood cuttings of 'Sarierik'plum

The aim of the study was to assess the rooting ability of semi-hardwood cuttings of ‘Sarierik’ plum in order to develop an alternative propagation method for this important plum clone grown in the Nevsehir region of Turkey. The cuttings were treated with different levels (0, 500, 1000, 1500 and 2000 mg l-1) of indole butyric acid (IBA) to test the hypothesis that differences in auxin concentrations could affect rooting ability of semi-hardwood cuttings of the ‘Sarierik’. IBA application promoted a significant increase in rooting percentage over control cuttings. The best rooting percentage (87.5%) was achieved by 1500 mg l-1 of IBA application, whereas the rooting percentage of the untreated control cuttings was only 10.8%. Root formation was not dependent on callus formation. The propagation method developed here for ‘Sarierik’ is a very reliable, economical and convenient way of propagation as compared to its alternatives such as propagation by grafting, root suckers or in vitro multiplication.

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