Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes
Background: The mechanical properties of Okuzgozu grapevine canes influence pruning and harvesting techniques, grape quality, and the feasibility of using mechanical harvesters. Methods: This study determined the optimal cutting qualities for the native Okuzgozu grape variety (Vitis vinifera L.) ove...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
|
| Series: | Journal of King Saud University: Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018364723004962 |
| _version_ | 1797448734079975424 |
|---|---|
| author | F. Goksel Pekitkan |
| author_facet | F. Goksel Pekitkan |
| author_sort | F. Goksel Pekitkan |
| collection | DOAJ |
| description | Background: The mechanical properties of Okuzgozu grapevine canes influence pruning and harvesting techniques, grape quality, and the feasibility of using mechanical harvesters. Methods: This study determined the optimal cutting qualities for the native Okuzgozu grape variety (Vitis vinifera L.) over a range of phenological stages and cane diameters. The cutting tests of canes were performed at different growth periods (veraison, 15 days after veraison and harvesting time). A universal material testing equipment was used to investigate the cutting characteristics of the material. Results: The results indicate that both phenological stages and diameter significantly impacted measured cutting characteristics of grapevine canes. Cutting strength, cutting force, cutting energy and upper bio-yield force gradually decreased with phenological stages. All average maximum values were obtained during the veraison stage. At this stage, the highest values for cutting strength, cutting force, cutting energy, and upper yield were measured at 13.16 MPa, 774.55 N, 5.94 J, and 631.60 N, respectively. The lowest values were recorded at 9.63 MPa, 568.42 N, 3.33 J, and 513.13 N. A close relationship was observed between cane diameter and cutting energy. The energy requirement decreased linearly with decreasing cane diameter. Conclusion: The maximum cutting energy and force values were calculated at an internode 5 (IN5) as 7.34 J and 995.49 N respectively, the minimum cutting energy and force values were calculated at internode 1 (IN1) as 1.85 J and 385.52 N, respectively. |
| first_indexed | 2024-03-09T14:15:46Z |
| format | Article |
| id | doaj.art-63be5c325c4e41e6ab607467094c7a68 |
| institution | Directory Open Access Journal |
| issn | 1018-3647 |
| language | English |
| last_indexed | 2024-03-09T14:15:46Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Science |
| spelling | doaj.art-63be5c325c4e41e6ab607467094c7a682023-11-29T04:23:48ZengElsevierJournal of King Saud University: Science1018-36472024-01-01361103034Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canesF. Goksel Pekitkan0Department of Agricultural Machinery and Technologies Engineering, Faculty of Agriculture, Dicle University, Diyarbakir 21280, TurkeyBackground: The mechanical properties of Okuzgozu grapevine canes influence pruning and harvesting techniques, grape quality, and the feasibility of using mechanical harvesters. Methods: This study determined the optimal cutting qualities for the native Okuzgozu grape variety (Vitis vinifera L.) over a range of phenological stages and cane diameters. The cutting tests of canes were performed at different growth periods (veraison, 15 days after veraison and harvesting time). A universal material testing equipment was used to investigate the cutting characteristics of the material. Results: The results indicate that both phenological stages and diameter significantly impacted measured cutting characteristics of grapevine canes. Cutting strength, cutting force, cutting energy and upper bio-yield force gradually decreased with phenological stages. All average maximum values were obtained during the veraison stage. At this stage, the highest values for cutting strength, cutting force, cutting energy, and upper yield were measured at 13.16 MPa, 774.55 N, 5.94 J, and 631.60 N, respectively. The lowest values were recorded at 9.63 MPa, 568.42 N, 3.33 J, and 513.13 N. A close relationship was observed between cane diameter and cutting energy. The energy requirement decreased linearly with decreasing cane diameter. Conclusion: The maximum cutting energy and force values were calculated at an internode 5 (IN5) as 7.34 J and 995.49 N respectively, the minimum cutting energy and force values were calculated at internode 1 (IN1) as 1.85 J and 385.52 N, respectively.http://www.sciencedirect.com/science/article/pii/S1018364723004962Cutting energyCutting forceGrapeHarvestPhenological stages |
| spellingShingle | F. Goksel Pekitkan Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes Journal of King Saud University: Science Cutting energy Cutting force Grape Harvest Phenological stages |
| title | Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes |
| title_full | Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes |
| title_fullStr | Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes |
| title_full_unstemmed | Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes |
| title_short | Mechanical properties of Okuzgozu (Vitis vinifera L. cv.) grapevine canes |
| title_sort | mechanical properties of okuzgozu vitis vinifera l cv grapevine canes |
| topic | Cutting energy Cutting force Grape Harvest Phenological stages |
| url | http://www.sciencedirect.com/science/article/pii/S1018364723004962 |
| work_keys_str_mv | AT fgokselpekitkan mechanicalpropertiesofokuzgozuvitisviniferalcvgrapevinecanes |