Determination of Characteristics of Grape Berry Skin in Some Table Grape Cultivars (K vinifera L.)

摘要

This research was carried out in nursery conditions of Tekirdag Research Institute, in Turkey in 2000 year by using of 13 table grape cultivars. Experiment was established according to randomized complete blocks design consisting of 4 replicates. In the study, weight loss in grape berry (ing berry""1), wax layers weight in grape berry skin (mg berry"1, mg cm"2, mg cm"3) and skin thicknesses of grape berry (mm) were examined according to cultivars. While the values concerning weight loss in grape berry in cultivars were differing according to measurement dates; the lowest value from wax layer weight per grape berry of cultivars was obtained from Cv. Dokulgen (0.004 mg berry"'1) and the highest value was obtained from Cv. Alphonse Lavallee (0.045 mg berry"1). Among the averages concerning wax layer weight per skin area of grape berry, the lowest value was 9.485 mg cm"2 for Cv. Yapmcak and the highest value was 16.785 mg cm"2 for Cv. Alphonse Lavallee. From the standpoint of wax layer weight per skinvolume of grape berry, while the lowest value was obtained from cvs. Cinsaut, Karagevrek and Dokulgen (0 002 mg cm"3), the highest value was obtained from Cv. Hontisu (0.010 mg cm"'). Regarding skin thickness of grape berry, the lowest values were 27.50mm for cvs. Yapmcak, Razaki and Tahanncbi and the highest value was 89.38 mm for Cv. Honusii.