Effect of rootstocks on growth, yield and fruit quality of Red Globe grape

الملخص EN

The current investigation was conducted during the two successive seasons of 2013 and 2014 on six years old vines grown in a sandy soil of a private orchard located at Wadi Almollak, Ismailia Governorate, Egypt.

Vines of Red globe cv.

were grafted on three different rootstocks namely Freedom, Richter and Salt Creek, cvs.

in addition to the own-rooted vine cultivar to evaluate their effects on growth, yield and fruit quality.

The results showed that rootstocks had a positive impact on growth, yield and fruit quality of Red globe grapevines.

Red globe grafted on Salt creek rootstock recorded the highest values of leaf area followed by other rootstocks and those on own roots, while insignificant difference were noticed regarding leaves number.

Maximum values of shoot length were obtained when Red globe was grafted on Freedom rootstock while the lowest values were recorded by Richter rootstock.

Regarding chemical properties of berries, Red globe grafted on Freedom rootstock recorded the highest percentage of TSS, TSS / acid ratio and anthocyanin content.

No difference between percentages of acidity in the berry juice of Red globe grafted on any rootstock was noticed.

Insignificant differences were noticed regarding yield as kg / tree when Red globe cv.

was grafted on any rootstock