Evaluation of the Detachment Force Needed for Mechanical Thinning of Green Peach Fruits
| Autor: | Sandro Sirri, Alberto Assirelli, Federico Pallottino, Mattia Cacchi, Corrado Costa, Giuseppina Caracciolo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject Geography Planning and Development Impact angle TJ807-830 Management Monitoring Policy and Law Peach orchard TD194-195 01 natural sciences phenology size Adaptability work windows Renewable energy sources 040501 horticulture angle crop load GE1-350 Cultivar Mathematics media_common Thinning Dynamometer Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Phenology stone fruits 04 agricultural and veterinary sciences Environmental sciences Horticulture 0405 other agricultural sciences 010606 plant biology & botany cultivar |
| Zdroj: | Sustainability, Vol 10, Iss 7, p 2291 (2018) Sustainability Volume 10 Issue 7 |
| ISSN: | 2071-1050 |
| Popis: | As a result of mechanical fruit-thinning tests on various peach trees, difficulties in fruit detachment from branches were found for some cultivars. For this reason, and to create a database of the required detachment forces, the relationship between detachment and angle at which force is applied to the fruits was studied. The study was carried out in a peach orchard sited in Forlì on four peach cultivars when the fruits were 20&ndash 40 mm in size. Using a dynamometer, the force required to detach fruits was measured, and different angles were evaluated to simulate the various ways in which the thinner hits fruits. The analysis of the different angles showed that, on average, fruits are detached more easily if the force is applied with a 90° angle respective to the fruit position on the branch. On the other hand, if the force is applied with an angle of 0° the average force required is three times higher. The study highlighted that adaptability to mechanical thinning is higher in some cultivars than in others. The results also showed that it is important to consider the impact angle of the thinner on fruits when evaluating the efficiency of the thinner machine. |
| Databáze: | OpenAIRE |
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