Fruit and Vitis varieties accessions are held at ex situ field collections within earlier mentioned institutions. Regeneration of accessions is carried out at the Faculty of Agriculture in Zagreb, at the Institute of Adriatic Crops and Karst Reclamation in Split, and at the Institute for Agriculture and Tourism Poreč.
Fig. 1. Regeneration of grapevine (Vitis vinifera L.) accessions
Since 1998, inventarization of grapevine varieties is carried out throughout Croatia. During inventarization primary ampelographic evaluation and marking of vines is carried out. Tissue samples for DNA analyses are taken from interesting vines. Database with ampelographic description and genetic profiles is being created and it will be part of most important European Vitis databases.
Ongoing scientific research activities include the analyses of intravarietal variability of most important autochtonus grapevine varieties using ampelographic description and amphelometric measurements and molecular markers.