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 Ahmed Aziz Kurd, Amanullah, Saifullah Khan, Basharat Hussain Shah and Munir Ahmed Khetran*

 *PARC-Arid Zone Research Centre, Brewery Road, Quetta, Pakistan


  Semi-hardwood cuttings of olive (Olea europea) variety Coratina with 2–4 leaves and 15–18 cm in length were obtained from existing progeny in an orchard of Arid Zone Research Centre (AZRC), Quetta, Pakistan. The basal portion of these cuttings were treated with 3000, 4000 and 5000 ppm IBA solution for 3- 4 seconds. The treated cuttings were immediately planted in polyethylene tubes (10 cm x 20 cm) filled with a sandy loam soil. In the control, the cuttings were planted directly in polyethylene bags without IBA application. Plants were kept in a shade house and humidity was increased manually by hand sprinkling (four times in a day). Highest rooting percentage (60%) was obtained in the cuttings treated with 3000 ppm. The maximum average number of roots per cutting (4.443) and average root length (5.687 cm) were recorded with 4000 ppm IBA treatment. Percentage of rooted cuttings decreased with increased IBA concentration, whereas, number of roots and root length increased with increased IBA concentration. It was concluded that to obtain the most roots per cutting and the longest root length, application of 4000 ppm IBA was the best and to obtain the most number of rooted cuttings, application of 3000 ppm IBA was the best.

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Pakistan Journal of Agricultural Research


Vol.36, Iss. 4, Pages 297-403


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