In vitro effects of cyanobacteria (Oscillatoria tenuis) extracellular products on date palm (Phoenix dactylifera L. cv. ‘Barhee’) propagation

Document Type: Original Article


1 College of Agriculture, University of Basrah, Basrah, Iraq

2 College of Sciences, University of Basrah, Basrah, Iraq.

3 Department of Marine Biology, Marine Science Center, University of Basrah, Basrah, Iraq


This study was conducted to investigate the effect of the medium type (half-strength MS medium and MS free medium) and the extracellular products of cyanobacteria (Oscillatoria tenuis) that were grown under photoperiods of 8 or 16 h day-1 on the shoot proliferation and rooting of in vitro ‘Barhee’ date palm ciltures. MS free medium failed to establish half-strength MS medium results, which indicates that the medium could not sustain cultures requirments during shoot proliferation and rooting phase. On the other hand, half-strength MS medium supplemented with extracellular products of O. tenuis grown at 16 h day-1 photoperiod recorded the best results in regards of response to direct organogenesis and rooting.


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Articles in Press, Accepted Manuscript
Available Online from 14 October 2020
  • Receive Date: 04 September 2020
  • Revise Date: 08 October 2020
  • Accept Date: 09 October 2020