Articles
CHARACTERIZATION OF THE NEW CULTIVAR ‘ERVI’ AS A FUNCTION OF MECHANICAL HARVESTING
Article number
978_26
Pages
229 – 236
Language
English
Abstract
Selection of new grape cultivars by intraspecific crossing increases biodiversity as well as improves some parents characteristics.
However, their success is still unclear.
It seems to depend upon how well they respond to different challenges and demands of the modern viticulture, such as their adaptability to climate change and vineyard mechanization.
This research aims to characterize vine performance and suitability to mechanical harvesting of cultivar Ervi (V. vinifera L.), an Italian crossbreed between Barbera and Croatina. The trial was performed between 2008 and 2010 on the Piacenza hills using Guyot trained vines.
Cluster number and yield per vine were recorded at harvest.
Subsequently, shoot fertility, cluster and berry weight were calculated accordingly.
Soluble solids, pH and must titratable acidity were analyzed as well as total anthocyanins and phenols grape content.
A pool of 891 berries was randomly picked and their respective detachment force was measured by a dynamometer. Ervi showed more constant yield than its parents and shoot fertility higher than Croatina suggesting that short spur pruning is feasible.
Berry weight in Ervi was also lower than in Barbera. Ripening was earlier than both parents.
The adaptability of Ervi to the mechanical harvesting is similar to Barbera and better than Croatina. The BDF is cultivar-dependent and is an important parameter for mechanical harvesting.
Its application as a maturity index is still premature.
However, their success is still unclear.
It seems to depend upon how well they respond to different challenges and demands of the modern viticulture, such as their adaptability to climate change and vineyard mechanization.
This research aims to characterize vine performance and suitability to mechanical harvesting of cultivar Ervi (V. vinifera L.), an Italian crossbreed between Barbera and Croatina. The trial was performed between 2008 and 2010 on the Piacenza hills using Guyot trained vines.
Cluster number and yield per vine were recorded at harvest.
Subsequently, shoot fertility, cluster and berry weight were calculated accordingly.
Soluble solids, pH and must titratable acidity were analyzed as well as total anthocyanins and phenols grape content.
A pool of 891 berries was randomly picked and their respective detachment force was measured by a dynamometer. Ervi showed more constant yield than its parents and shoot fertility higher than Croatina suggesting that short spur pruning is feasible.
Berry weight in Ervi was also lower than in Barbera. Ripening was earlier than both parents.
The adaptability of Ervi to the mechanical harvesting is similar to Barbera and better than Croatina. The BDF is cultivar-dependent and is an important parameter for mechanical harvesting.
Its application as a maturity index is still premature.
Authors
M. Gatti, M. Zamboni, M.C. Merli, S. Civardi, S. Poni
Keywords
berry detachment force, grape maturity, breeding, ‘Barbera’, Vitis vinifera L.
Online Articles (46)