0000000001278527
AUTHOR
P. Scafidi
showing 5 related works from this author
Defoliation of two-wire vertical trellis: effect on grape quality
2017
ABSTRACTBasal leaves were removed from Cabernet Sauvignon vines trained to a two-wire vertical trellis at fruit set and at veraison. Leaf removal did not modify total soluble solids and titratable acidity at harvest. Defoliation at fruit set of lower cordon recovered the grape anthocyanin composition gap between upper and lower cordons and that produced a positive effect on anthocyanin synthesis. Hence, control of the upper cordon and defoliation of fruit set of the lower cordon treatments showed comparable values of anthocyanins. Defoliation at veraison did not produce any appreciable effect. This study shows that skin anthocyanin composition in a two-wire vertical trellis can be modified …
MANUAL AND MECHANICAL LEAF REMOVAL IN THE BUNCH ZONE (VITIS VINIFERA L. 'NERO D'AVOLA'): EFFECTS ON PLANT PHYSIOLOGY, VEGETATIVE PARAMETERS, YIELD AN…
2013
Mechanical and manual leaf removal of Nero d Avola vines were carried out in a commercial vineyard in Sclafani Bagni area, Sicily (South Italy), in the 2007 growing season. Rows were North East-South West oriented and vines were spur pruned and non-irrigated. The aim was to investigate the effects of two different ways of defoliation on plant physiology, vegetative parameters, yield and grape quality in a warm temperature area. Fruit zone defoliation consisted of mechanical (MLR) and hand leaf removal (HLR), applied either to both sides of the canopy (Northweast and Southeast). These treatments were applied when the berries had reached pea size and compared to a non-defoliated treatment (co…
The use of vineyard spectral signatures to identify table grape cultivars
2021
Vineyards have characteristic responses to sunlight. The reflectance values at the different wavelengths are typical of vegetation and define its spectral signature. The aim of this work was to determine the spectral signatures of table grape vineyards located in the production area of Robinvale (Victoria, Australia) in order to identify cultivars in the vineyard. Spectral signatures were detected from images in eight bands from the Worldview 3 platform. Spectral signatures for a representative number of plots were extracted using satellite reflectance images for each cultivar. Spectral signatures were also collected in the field, from the same cultivars, with a FieldSpec® HandHeld 2 portab…
Effect of artificial shading on the tannin accumulation and aromatic composition of the Grillo cultivar (Vitis vinifera L.)
2013
Abstract Background White wine quality, especially in warm climates, is affected by sunlight and heat stress. These factors increase the probability that ambering processes will occur and reduce the potential flavour compounds. This study aimed to investigate the effect of sunlight reduction on the accumulation of polyphenolic and aromatic compounds. Results This study was conducted in a commercial vineyard containing V. vinifera L. cv Grillo. Opaque polypropylene boxes (100% shading) and high-density polyethylene (HDPE) net bags (50% shading) were applied at fruit set. The effect of the shaded treatments was compared to the exposed fruit treatment. The shaded treatments resulted in heavier…
Le Ville di Palermo. Le dimore extraurbane dei Baroni del Regno di Sicilia (1412-1812)
2011
Il volume analizza gli esiti architettonici raggiunti a Palermo relativamente alla tipologia delle dimore extraurbane sorte nella capitale tra il 1412 e il 1812. Nella monografia vengono individuati e analizzati esempi emblematici, tra committenza, architetti e maestranze coinvolte,progetti, cantieri, modelli di riferimento.