Abstract
Factors affecting in vitro propagation of several apricot cultivars were studied. The effect of nutrient media and BA concentration were strongly genotype dependent. Generally, best results were achieved with Quoirin and Lepoivre (1977) and a modification of WPM macronutrients (Lloyd and McCown, 1981). Optimum BA concentration was different for each cultivar but best results were obtained between 1.78 and 3.11 μM. Apricot shoots rooted well with different concentrations of IBA but most shoots showed symptoms of apical necrosis that could be overcome by dipping the shoot tips in solutions of 22.2 or 44.4 μM of BA prior to transfer to rooting medium.
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