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Application of different concentrations of licorice and willow extracts as rooting stimulator in hardwood cuttings of olive (Oleaeuropaea L.)

Journal: International Journal of Environment, Agriculture and Biotechnology (Vol.6, No. 6)

Publication Date:

Authors : ;

Page : 058-063

Keywords : Licorice extract; willow extract; olive cuttings; root formation.;

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Rooting in hardwood cuttings of olive was investigated at the College of Agricultural Engineering Sciences, University of Sulaimani, Kurdistan Region-Iraq under application of licorice and willow extracts with concentrations of (0, 3, 6 and 9 g.L-1). The extracts were prepared from licorice root and willow shoots in 25% ethanol heated in a water bath at 40ºC for 3 hours, refrigerated for 24 hours and filtered through filter paper. The hardwood cuttings of olive cv. (Sorani) were taken from basal part of one-year-old suckers then soaked in the licorice and willow extract concentrations for 1 hour. The results revealed that the highest (66.66%) rooting was achieved in the cuttings soaked in 6 and 9 g.L-1 licorice extract for 1 hour, they were not different in comparison with control cuttings which gave (49.99%), but rooting percentage was reduced (38.8%) in the cuttings soaked in 6g.L-1 willow extract. The cuttings soaked in 9 g.L-1 willow extract and 6 g.L-1 licorice extract gave the best root number, root length, shoot length, shoot diameter and leaf number. Generally, depending on the obtained results in this study, 6 and 9 g.L-1 licorice extract with 9 g.L-1 willow extract have possibility to use as an alternative to induce root formation and improve root and shoot quality of the cuttings in olive.

Last modified: 2021-11-19 13:29:46