Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.
El-Boray, M., Shalan, A., Abd-El Ghany, A., Rizk, M. (2024). Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.. EKB Journal Management System, 15(8), 417-429. doi: 10.21608/jpp.2024.295659.1348
M. S. El-Boray; A. M. Shalan; A. A. Abd-El Ghany; M. M. Rizk. "Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.". EKB Journal Management System, 15, 8, 2024, 417-429. doi: 10.21608/jpp.2024.295659.1348
El-Boray, M., Shalan, A., Abd-El Ghany, A., Rizk, M. (2024). 'Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.', EKB Journal Management System, 15(8), pp. 417-429. doi: 10.21608/jpp.2024.295659.1348
El-Boray, M., Shalan, A., Abd-El Ghany, A., Rizk, M. Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.. EKB Journal Management System, 2024; 15(8): 417-429. doi: 10.21608/jpp.2024.295659.1348

Employing Leaf Removal and Spraying Gibberellic Acid (GA3) to Reduce Cluster Compactness Coefficient and Enhance Chemical and Physical Properties of Thompson seedless H4 Grapevines.

Journal of Plant Production
Article 1, Volume 15, Issue 8, August 2024, Page 417-429  XML PDF (1.04 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2024.295659.1348
View on SCiNiTO View on SCiNiTO
Authors
M. S. El-Boray1; A. M. Shalan1; A. A. Abd-El Ghany2; M. M. Rizk email 2
1Department of Pomology, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt.
2Viticulture Department, Horticulture Research Institute, Agricultural Research Center, Giza 12619, Egypt.
Abstract
This investigation was carried out in the vineyard of the EL-Baramon experimental farm over two seasons (2021 and 2022). Horticultural Research Institute, Mansoura, Dakahlia Governorate, Egypt. The experiment was carried out on seven-year-old Thompson seedless grapevines (H4 strain). The vines were planted in clay soil using surface irrigation system, cane pruning, and trellising using the Spanish Baron technique. The purpose of this research was to decrease the compactness coefficient of clusters and improve the physical and chemical quality of clusters and berries in Thompson seedless grapes (H4 strain). A field experiment was conducted in a randomized complete design with four times of leaf removal individual or in combination with GA3, which applied by removing 6 leaves at the beginning of flowering, 25% of flowering, 50% of flowering and at 75% of flowering to compare the effect of these treatments on the performance of Thompson seedless grapevines (H4 strain) during 2021 and 2022 seasons. Results revealed that removing 6 leaves at the 75% of flowering + spraying GA3 at 10 ppm was the best in enhancing vegetative growth, total nitrogen in canes, carbohydrate contents in canes, yield and physical properties of cluster and berries, whereas the same treatments decreased the compactness coefficient, Botrytis incidence and Botrytis severity of the clusters. It can be concluded that removing 6 leaves at the 75% of flowering + spraying GA3 at 10 ppm lead to improve chemical and physical properties and reduce compactness coefficient of Thompson seedless grapevines (H4 strain).
Keywords
Thompson Seedless ‘H4 strain’; Leaf Removal; Gibberellic Acid (GA3)
Statistics
Article View: 236
PDF Download: 262