اعلانات هامة

 This trial was carried out for three years 2005-2006-2007 in Al Mokhtariah Research Station in Homs city, to test the effect of thinning and girdling processes on some chemical and physical properties of local grape varieties planted as pergola (Halwani, Baladi). The trial included four treatments: control, thinning, girdling, and (thinning+girdling), and each treatment included three replications. The results showed the following:

The best results was obtained from treatments (thinning+girdling) and girdling alone, comparing to other treatments (for both varieties). And they had an important and significant effect on: cluster length, rachis weight, number of berries, berry weight, seeds number, cluster weight, and yield. The same treatments (girdling and thinning+girdling) had significant and important effect on increasing total soluble solids, and sugar percentage. While they had decreased acidity comparing to control treatment (for both varieties). The thinning+girdling process leaded to earlier mature for about 7- 8 days, and increasing coloring in Halwani variety.

• There was an significant effect for years rate on some studied physical and chemical properties.

Keywords: thinning, girdling, local grape, pergola.

أجريت التجربة لمدة ثلاثة أعوام من 2005 حتى 2007 م في محطة بحوث المختارية بحمص بهدف معرفة تأثير عمليات الخف والتحليق في بعض الصفات الفيزيائية والكيميائية للأصناف المحلية من العنب مرباة على شكل عرائش (حلواني - بلدي). تضمن البحث أربع معاملات هي: