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العنوان
Studies on pruning of superior grapevines /
المؤلف
Soliman, Ahmed Seif El­-Din.
هيئة الاعداد
باحث / أحمد سيف الدين سليمان
مشرف / محمود إبراهيم القاضى
مشرف / نبيل رشاد السيد سمره
مشرف / محمود حسين رزق
مناقش / إبراهيم محمد دسوقى
الموضوع
Viticulture. Grapes. Grapes - Varieties. pruning Superior grapevines.
تاريخ النشر
2004.
عدد الصفحات
101 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
البساتين
تاريخ الإجازة
1/1/2004
مكان الإجازة
جامعة المنصورة - كلية الزراعة - البساتين
الفهرس
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Abstract

This study was carried out during the seasons of 2002 and 2003 to evaluate the effect of different pruning methods on bud behaviour, vegetative growth, yield, berry quality as well as leaf minerals content (NPK) of Superior Seedless grape cultivar. For this study trees were about five years old grown in a private orchard at El­Katatba, Monofia governorate, Egypt.The clusters harvested at maturity stage when the fruits reached full color (creamy), T.S.S. 14.5­15.0 % and TSS/acid ratio 18­20:1 % . Sample from each treatment were taken to the laboratory of Pomology Department, Faculty of Agriculture, Mansoura University. After that, clusters were sorted to remove any obvious infected and damaged fruits to study the effect of various treatments used on fruit quality, leaf area, NPK in leaf petioles.<U+2022> This study revealed the following results:­ 1­ The average of leaf area was increased by increasing the number of nodes on the cane. Since, vines pruned to 8 canes/vine with 10,12 or 14 nodes resulted in a higher increment than leaving 6 canes under the same number of nodes as a mean in the two seasons. 2­ The average of trunk diameter was increased during the growing season. Since, the values during the second season were higher than the first one under different levels of pruning. Yet, leaving 8 canes with 14 nodes produced the highest increment in trunk diameter (0.4 cm) during the second season compared with the other pruning treatments used. 3­ Yield per vine and per feddan was increased by increasing the number of nodes per vine. Since, leaving 8 canes with 14 nodes/cane produced a higher significant yield per vine and per feddan than leaving 10 or 12 nodes per cane. 4­ leaving 8 canes per vine with 12 buds for each cane (96 eye) was superior in this respect than the other levels of pruning used. Since, these treatment produced a higher yield with good cluster and berry quality than the other pruning severity.