تأثير معاملات التقليم الصيفي و الرش بمستخلصي براعم و قلف الصفصاف في نوعية و حاصل العنب (Vitis vinifera L.)‎ من الصنف كمالي

Abstract EN

This study was conducted in a private farm in Al – Abbaseia, Najaf Governorate during the growing seasons of 2006 and 2007 on grape cv.

Kamaly.

The aim was to restrict the vegetative growth, increasing productivity and improve berry quality, using some summer pruning (e.

g.

pinching, lateral shoot removal, sterile shoot removal) and spraying with the extract of bud of salix with concentrations of 10, 15 and 20% and with the extract of bark of salix with concentrations of 15, 20 and 25% one week before full bloom.

40 similar grape trees were chosen.

The experiment was adopted as Randomized Complete Block Design (RCBD) with four blocks, each block contained 10 treatments with four replicates as one tree for a replicate.

Results show that summer pruning and spraying with bud and bark extracts of salix were superior compared to the control treatment in an increase in total chlorophyll percentage on leaves, cluster diameter and its weight, tree yield, berry compact cluster degree and its contents of anthocyanine, total soluble solids, vitamin C, total carbohydrates percentage in cane, decreasing the leaf area and its contents of materials similar to auxins and gibberellins, cluster length, total acidity percentage in fruit juice.

There were significant differences between the treatments in the benefit of the treatment of salix bud extract with a concentration of 20%, which gave the best results.