The effect of media and growth regulators on  in vitro rooting of olive (Olea europaea L.)  cv.  Gordal.

Jamel Abdul Majeed, Qais

	The effect of media and growth regulators on in vitro rooting of olive (Olea europaea L.) cv. Gordal.
Jornal of Biotechnology Research Center
Article 1, Volume 1, Issue 1, 2007, Pages 5-15
Author
Qais Jamel Abdul Majeed
Abstract
Nodal explants of difficult-to-root Gordal olive were cultured on half-strength OM medium after surface sterilization with 15% NaOCl for 20 minutes. The in vitro-proliferated shoots were then submitted for 25 days to rooting trials including various concentrations of NAA and IBA and different half-strength rooting media as well. Among the media tested during rooting stage, highest rooting percentage 62% found in both OM and MS half-strength media when both the growth substances were used, and 87.5 and 90% gained when IBA and NAA were added to the rooting media at 2 Mg/L each, respectively. Highest number of roots 1.85 and highest root length 3.09 mm obtained with half-strength MS and OM media respectively, when IBA was used with these media. And IBA at 2 Mg/L in the rooting media gave the highest number of roots 2.5 with 4.13 mm length. However, 2 Mg/L NAAin the rooting media gave 1.94 number of roots with length of 3.88 mm, while number of roots 1.38 with 2.79 length obtained with half- strength OM media when NAA was used in the rooting media .It is therefore concluded that best medium for in vitro rooting of Gordal microcuttings is half- strength OM supplemented with 2 mg/L of IBA.

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