مرکز منطقه ای اطلاع رساني علوم و فناوري - Determination of Sapling Yield and Quality Features in Some Rootstocks and Sultanı Çekırdeksız (Vitis Vinifera L.) Variety Grafted on These Rootstoks

Abstract :

he use of rootstocks in vine cultivation areas has become inevitable due to the excessive damages caused by phylloxera. However, there are some necessary measures which need to be considered during the selection procedure of these rootstocks. The harmony between rootstock and varieties, and effects of this harmony on sapling yield and quality are among one of these measures. Many American grapevine rootstocks being used in Turkey (Rup. du Lot, 420A, 5BB, SO4, 8B, 110R, 1103P, 140 Ru, 41 B, Ramsey) grown as non-grafted on their own roots and grafted with Sultani seedless variety were used in the current study. Sapling yield and quality traits of grafted and non-grafted rootstocks were investigated during the study. The tested grafted and non-grafted rootstocks significantly (p≤0.05) differed from each other for investigated yield and quality parameters. The S.Ç/Rupestris du Lot and S.Ç/5BB combinations of grafted rootstocks were the most successful with 54% sapling yield whereas Sultani seedless variety were found to be most successful (84 and 82% sapling yield, respectively) among non-grafted rootstocks. Similarly S.Ç/1103P and S.Ç/110R combinations of grafted root stocks with 110 and 102 mm root length respectively were most prominent with respect to root length. Whereas, 1103P and 8B (73 mm root length) were the most successful non-grafted rootstocks in this regard. S.Ç/1103P (2.8-1.8 g) and S.Ç/110R (3-1.9 g) combinations of grafted rootstocks and 140 Ru (2.8-1.6 g), 5BB (1.8-1.6 g) non-grafted rootstocks were the most evident ones with respect to fresh and dry weight.