Ampelographic study of Vitis vinifera L. varieties maintained in Shida Kartli (Georgia)

Research Not

Evaluation of eno-carpological traits in Georgian grapevine varieties from Skra germplasm repository

Eno-carpological traits were evaluated in twenty one colored and fifteen white Georgian autochthonous grapevine varieties grown in the Skra Germplasm Repository, during two years (2012 and 2013). Mostly of the studied accessions were minor varieties originated from various Georgian provinces. The spectrophotometric method proposed in the framework of the COST action FA1003 has been adopted for total anthocyanin and polyphenol analyses in skin and seed extracts. The obtained results showed that the content of phenolic compounds as well as other eno-carpological parameters varies greatly according to the variety. In general, the total phenol contents ranged from 546.7 to 2818.4 mg∙kg-1 of grape, and anthocyanins varied from 49.5 to 2826.6 mg∙kg-1 of grape. The highest content of total phenolics and total anthocyanins was found in the variety 'Saperavi Budeshuriseburi'

Description of the Vitis vinifera L. phenotypic variability in eno-carpological traits by a Euro-Asiatic collaborative network among ampelographic collections

The grapevine intra-specific variability captured an increasing interest during the last decades, as demonstrated by the number of recently funded European projects focused on the grapevine biodiversity preservation. However, nowadays, crop plants are mainly characterized by genotyping methods. The present work summarizes the phenotype data collected among 20 ampelographic collections spread in 15 countries, covering mostly of the viticultural areas in the Euro-Asiatic range: from Portugal to Armenia and from Cyprus to Luxembourg. Together with agro-climatic characterization of the experimental site, in two years, about 2400 accessions were described, following a common experimental protocol mainly focused on the carpological and oenological traits, obtaining a general overview of the distribution of the considered phenotypic traits in the cultivated Vitis vinifera species. The most replicated cultivars were selected and, for the subset of these reference cultivars, their behavior in the different environmental conditions over sites and years was described by ANOVA methods

Description of the vitis vinifera L. Phenotypic variability in eno-carpological traits by a Euro-Asiatic collaborative network among ampelographic collections

The grapevine intra-specific variability captured an increasing interest during the last decades, as demonstrated by the number of recently funded European projects focused on the grapevine biodiversity preservation. However, nowadays, crop plants are mainly characterized by genotyping methods. The present work summarizes the phenotype data collected among 20 ampelographic collections spread over 15 countries, covering most of the viticultural areas in the Euro-Asiatic region: from Portugal to Armenia and from Cyprus to Luxembourg. Together with agro-climatic characterization of the experimental site, over two years about 2,400 accessions were described. A common experimental protocol mainly focused on the carpological and oe-nological traits was followed, obtaining a general overview of the distribution of the considered phenotypic traits in the cultivated Vitis vinifera species. The most replicated cultivars were selected and, for the subset of these reference cultivars, their behavior in the different environmental conditions over sites and years was described by ANOVA methods

Evaluation of eno-carpological traits in Georgian grapevine varieties from Skra germplasm repository

Eno-carpological traits were evaluated in twenty one colored and fifteen white Georgian autochthonous grapevine varieties grown in the Skra Germplasm Repository, during two years (2012 and 2013). Mostly of the studied accessions were minor varieties originated from various Georgian provinces. The spectrophotometric method proposed in the framework of the COST action FA1003 has been adopted for total anthocyanin and polyphenol analyses in skin and seed extracts. The obtained results showed that the content of phenolic compounds as well as other eno-carpological parameters varies greatly according to the variety. In general, the total phenol contents ranged from 546.7 to 2818.4 mg 19kg-1 of grape, and anthocyanins varied from 49.5 to 2826.6 mg 19kg-1 of grape. The highest content of total phenolics and total anthocyanins was found in the variety 'Saperavi Budeshuriseburi'

Multidisciplinary Study of Traditional Grape Cultivars from Kartli Province of Georgia (the Caucasus Region) and Activities for Their Preservation

Kartli province is a traditional Georgian viticultural region having a rich heredity of local autochthonous grape cultivars-according to the 'Ampelography of Georgia' (1960) their number is 68. Thirty-five cultivars from this germplasm, maintained in two sites of Skra collection, were involved in our research. The selected cultivars were characterized by modern methods of ampelography with photographic records, chemical analyses and molecular markers. Phenological observations of plant development were also done. Preservation activities for these genotypes, especially from the "Koskhkebi" site, are urgent due to their quite old age (the repository was established in 1973). For this reason 25 rare cultivars were propagated for planting in a new field collection and 30 genotypes were included in AEGIS European Catalogue for preservation in other European collections too