Özet:

Hybridization breeding studies in “Yalova Atatürk Central Horticultural Research Institute” obtained 83 /1, 86/1 and 130/1 candidate cultivars and Ergin Çekirdeksizi, Trakya İlkeren and Superior Seedless grape cultivars were tested in this study conducted at in Amik plain during 2011 – 2012 years. The experimental plot were planted in 2008 with the grafted vines (variety - candidate/1103 P). The vines were trained single-arm pergola systems. The plot was irrigated with drip irrigation. Cluster and berry characteristics, total soluble solid (TSS) content, juice pH, titratable acidity (TA) and maturity index were determined for the assessment of fruit quality. The yield per vine and the pruning weight values were recorded on these cultivars/candidates. EHT values were calculated as degree-day (dd) from bud-break to harvest periods. 83/1 and 86/1 were determined earliness promising hybrid canditates in terms of the maturity period and EHS requirements in ecology of region. The highest yield value was obtained from Ergin Çekirdeksizi. This cultivar was followed 86/1 candidate. 83/1 candidate and Trakya İlkeren cultivar were similar in terms of this feature. 83/1 was found the closest value to Ergin Çekirdeksizi in terms of bunches weight. At the same time, this candidate gave the highest berry weight and berry width and pH.

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