EFFECT OF CULTURE MEDIA AND EXPLANT TYPE ION PROPAGATION OF VITIS-VINIFERA L CV ALBARINO

Shoot tips and nodal explants of grapevine (Vitis vinifera L. cv. Alba rino) were cultured on Murashige & Skoog's or Galzy's mineral salts su pplemented with 2 mg/l of N-6-(2-isopentenyl) adenine and/or Ferro's v itamins. The reactivity was high (60%) in all the treatments. Length o f the tallest shoot and number of nodes per explant were influenced si gnificantly by media and type of explant. Rooting percentage, number o f roots per explant and length of the longest root were affected signi ficantly by the two above factors, an interaction being found between them. Callus development was best, in general, in nodal segments, inde pendent of the medium used. Murashige & Skoog's mineral salts enhanced proliferation.