Preliminary evaluation of quantitative and qualitative traits of fruits from Russian grapevine cultivars in Urmia region

Comparison of commercial grape cultivars with native cultivars and study of their adaptation is a traditional way for replacement of conventional orchards and establishment of new vineyards. To evalute the adoptation of 69 grapevine cultivars imported from Russia this research was conducted as a rectangular lattice design of 8*9 in Kahriz research station, Urmia. After planting the vines were trained according Cordon bilatral system. In the fourth-year different parameters including flowering time, fruit ripening time, fruit and leaf morphology, fruit TSS, TA, PH and TSS/TA and some other characteristics were evaluated.More than half of the genotypes had spherical berries and the remaining had oval shapes. The six different colors including light green, green, red, yellow, light yellow and black colors were observed in berries of different varieties.Only Morus genotype had seedless berry. Morus and Zanbil with TSS of 21.93 and 22.18 had the highest TSS, and Yolski biser, X45, Dedeski rumphi and number 47 with 2.05, 1.44, 1.44 and 1.5 gr in 100 ml of juice (acid tartaric) had the highest total acidity, respectively. Comparison of means for ripening time showed that Supran bulgar and Vormunk genotypes with 189 and 192 days of fruit growth duration late ripening genotypes and Rumphi izadnegare with 142 day was the most early ripening genotype. Skif, Yloaski and Druzhba cultivars, with 8.7, 9.12 and 7.5 Kg per tree were the most bearing cultivars respectively. In addition to the Red Bidane cultivar, which had good performance among the endomic genotypes, the two other control (endomic) cultivars had a lower performance than Russian cultivars.