Analysis of the organogenetic potential of calli of three Canary Island Lycopersicon esculentum land races

Abstract

The organogenetic potential from callus of three tomato land races from the Canary Islands adapted to semi-arid environment (‘Salvaje’, ‘Rusa’ and ‘Especial’), and one tomato cultivar (‘Meltine’), were examined. The response of four explant types (cotyledon, shoot apex, hypocotyl and root) to nine PGR regimes (BAP at 1 or 2 or 5 mg/l) + either IAA (0.5 mg/l) or 2,4-D (0.5 or 1 mg/l) were measured. BAP at 5 mg/l+IAA at 0.5 mg/l induced most organogenesis in all the explant types for all genotypes. ‘Salvaje’ has one of the highest organogenetic potentials described in tomato.