Response of hardwood cuttings of some olive cultivars (Olea europea L.) to time of taking cuttings and treatments with different concentrations of indole butyric acid (IBA)

• S.S Sergewa

  Horticulture Department, Faculty of Agriculture, Omar Al-Mukhtar University, Libya

  Author

• A.S Abaidalah

  Horticulture Department, Faculty of Agriculture, Omar Al-Mukhtar University, Libya

  Author

• H Albabah

  Horticulture Department, Faculty of Agriculture, Omar Al-Mukhtar University, Libya

  Author

an investigation was carried out to improve the rooting ability of olive hardwood cuttings. This research aimed to study the effect of time of taking cuttings (November, December, January, and February) and IBA concentrations (0, 1000, 2000, and 3000 ppm) on rooting ability of two olive cultivars (Halkadiki and Thahbia). The percentage of cutting that rooted, the number of roots produced by cuttings, and the average root length were recorded. These parameters were significantly influenced by the interactive effect of cultivars, time of taking cuttings, and IBA treatments. The highest significant values for all parameters under test were recorded for Halkadiki hardwood cuttings taken in January and treated with (2000 ppm) of IBA , which reached (73.67%) for rooting percentage, (22.00) for average roots number, and (20.00 cm) for average root length. While the lowest values for all parameters tested occurred in Thahbia hardwood cuttings taken in November and dipped in distilled water (control), which recorded (0.00%) for rooting percentage, (0.00) for roots number, and (0.00 cm) for average root length.

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