Search results for "Mechanical harvesting"
showing 6 items of 6 documents
Toward the valorization of olive (Olea europaea var. europaea L.) biodiversity: horticultural performance of seven Sicilian cultivars in a hedgerow p…
2019
Abstract An intense survey of the Sicilian’s olive growing areas for autochthonous germplasm, mainly represented by centennials olive trees (Olea europaea var. europaea L.) apparently older then III centuries, started at the beginning of the 1980s and resulted in the selection of more than 150 cultivars and accessions. This germplasm was propagated in a nursery, by grafting onto seedlings of Olea europaea L., and planted in an experimental orchard, in an olive district located in the South-west of the Island, where they were evaluated for over 30 years and selected for their early bearing, high and constant productivity, as well as high oil content of the fruits and excellent chemical (olei…
Vibration Monitoring of the Mechanical Harvesting of Citrus to Improve Fruit Detachment Efficiency
2019
The introduction of a mechanical harvesting process for oranges can contribute to enhancing farm profitability and reducing labour dependency. The objective of this work is to determine the spread of the vibration in citrus tree canopies to establish recommendations to reach high values of fruit detachment efficiency and eliminate the need for subsequent hand-harvesting processes. Field tests were carried out with a lateral tractor-drawn canopy shaker on four commercial plots of sweet oranges. Canopy vibration during the harvesting process was measured with a set of triaxial accelerometer sensors with a datalogger placed on 90 bearing branches. Monitoring of the vibration process, fruit pro…
The sustainability of olive orchard planting management for different harvesting techniques: An integrated methodology
2019
Abstract The globalization of the olive oil market has caused greater competitiveness in terms of olive oil quality and production costs and the main countries interested in olive growing, have introduced efficient planting design and horticultural techniques in order to meet these requirements. In this paper the sustainability of olive orchard planting management for different olive fruit-harvesting methods has been assessed on the basis of the data gathered by the Geographic Information System and processed using a Multi-Criteria Decision Making Analysis. In particular, three different agronomic scenarios have been analyzed and a specific cultivar has been considered in order to ensure th…
Assessment of the pedicel detaching and crashing forces of grape berries to determine the right mechanical harvesting period
2007
During the mechanical harvesting the shakers cause the detachment of the grape berries from the grape stalk but also the breaking of the grape berries peel with the consequent production of must that influences the quality of the harvested grapes. This one is higher in the varieties having grape berries more resistant to the crushing and, at the same time, an easier detachment of the pedicel. The aim of this work is to evaluate, for three different varieties of grape (Chardonnay, Catarratto comune and Nero d’Avola), the crushing strength of the berry, that represents the cause of the production of must during the mechanical harvesting, and the resistance of the berry-pedicel system that inf…
Growth, Phenology, Production and Oil quality of the Cultivar Arbequina in high-density hedgerow in four different areas of Italy
2012
The success of the traditional olive-growing sector in EU countries – characterised by high production costs and a low selling price for the oil – was mainly determined by EU subsidies available for the sector. With the opening of the "free trade" area and a cut in subsidies in 2014, crucial changes in the sector are now needed. In order to increase the competitiveness of EU olive production, attention should be given to new high-yielding, mechanized cultivation systems. In the 90s, Spain introduced new high-density planting systems (1,200-2,000 plants/ha) using three low-vigour and early-fruiting cultivars (‘Arbequina’, ‘Arbosana’ and ‘Koroneiki’). Italian olive production lies in a geogra…
Growth and yields of 'Arbequina' high-density planting systems in three different olive growing areas in Italy
2014
The sustainability of the traditional olive-growing sector in EU countries characterised by high production costs and a low selling price for the oil was mainly determined by EU subsidies available for the sector. With the opening of the free trade area by the Barcellona Declaration of 1995 and a cut in EU subsidies in 2014, crucial changes in the sector are now needed. In order to increase the competitiveness of EU olive production, attention should be given to new high-yielding and mechanized cultivation systems. In the 1990s, Spain introduced new high-density planting systems (1,200-2,000 trees/ha) using three low-vigour and early-fruiting cultivars ( Arbequina , Arbosana and Koroneiki )…