Determination of Ampelographic Characters of Some Natural Foxy Grape (Vitis labrusca L.) Types Grown in Northern Turkey (In Trabzon Province)

摘要

This study was carried out during 2003- 2004 in order to determine ampelographic characters of the Labrusca type (Vitis labrusca L.) grapes grown in Trabzon province in Northern Turkey. Detailed ampelographic characters of 10 Natural Foxy grape typeswere described in accordance with the international norms. The number of lobes and the shape of blade in mature leaf were determined as three lobes, Pentagonal, Wedge-shaped or Cordate, respectively. The sexes of flowers at types were Hermaphrodite character. The bunch sizes were generally Very Small and the shape of bunches was Cylindirical or Conic and Winged. The size of berry and its shape were Middle and Large in size and Round in shape. The skin color of the types was Dark Red-Violet, Rose-Red, Red or Blue-Black. The particular flavor was Foxy as typical characters of Vitis labrusca species. The time of ripening was generally late. The single bunch weight, the berry must yield and the total acid changed between 82.6 and 335.0 g, 13.0 and 16.0%; 3.29 and 10.0 g L~(-1), respectively.