1,721,095 research outputs found
Genotyping wine and table grape cultivars from Apulia (Southern Italy) using microsatellite markers
No full textThirty-eight typical grapevine varieties of the Apulia region, Southern Italy, were genotyped at 6 microsatellite loci (VVS2, VVMD5, VVMD7, VrZAG47, VrZAG62, VrZAG79) with the aim to find synonymy and to confirm some pedigrees reported in literature. Microsatellites were amplified by PCR with P-33-ATP labelled primers and alleles separated by electrophoresis using 6 % acrylamide sequencing gels. The results confirm the high information level of the selected microsatellites. The number of alleles ranged from 7 to 11, producing up to 23 different combination patterns. The observed heterozygosity varied between 81.6 and 94.7 %, the discrimination power between 0.888 and 0.939, and the probability of identity was as low as 0.06-0.12. All cultivars of the study were discriminated from each other, except Regina (syn. Afuz Ali) and Mennavacca, which had the same profile. Finally, we were able to confirm the parentage of Victoria (Cardinal x Afuz Ali) and Matilde (Italia x Cardinal)
Genetic variability within the grapevine cultivar Picolit revealed by microsatellite and AFLP markers
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La Ribolla gialla nei "Colli Orientali del Friuli": influenza del portinnesto e della forma di allevamento
No full textInfluenza della densità di piantagione sul comportamento vegeto produttivo del Sauvignon
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CHARACTERISATION OF THE GRAPEVINE CULTIVAR PICOLIT BY MEANS OF MORPHOLOGICAL DESCRIPTORS AND MOLECULAR MARKERS
Full text linkSensory properties of 'Cabernet Sauvignon' wines as affected by rootstock and season
No full textCabernet Sauvignon wines have been described as ruby red colored and with a typical herbaceous flavour. The effect of the rootstock and the climatic factors on these characteristics have been known, and it is important to investigate how to manage rootstocks in order to optimize grape quality. Thus, the aim of this study was to estimate the effect of seven rootstocks (SO4, 420A, 3309 C, 161.49, Fercal, 1103P, Kober 5BB) on grape production and quality. A three-years trial was carried out in the DOC area "Colli Orientali del Friuli", north-eastern Italy. The rootstocks mainly affected productivity and little differences were observed in the quality parameters; in fact, 161.49, SO4 and 420A showed higher yields in comparison with Fercal and Kober 5BB, while little differences in sugars were assessed. The sensory analysis of the wines was performed during three years. Summarizing the results, 161.49 and 420A rootstocks have been judged as better by the panel, average scores have been reported for Fercal and Kober 5BB rootstocks, different evaluations have been obtained by SO4 and 1103P rootstocks in the three years. The factor year seems to have more influence on sensory analyses than the factor rootstock. The relationship between sugars and sensory scores did not reveal a significant correlation even when the different years were kept separate. Thus, it is clear that the quality of wines needs to be described both with chemical parameters and with sensory analysis
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