Open Access
Ciência Téc. Vitiv.
Volume 33, Number 1, 2018
Page(s) 15 - 30
Published online 25 April 2018

© Instituto Nacional de Investigação Agrária e Veterinária, I.P. / Ex-Estação Vitivinícola Nacional 2018

Licence Creative CommonsThis is an Open Access article distributedunder the terms of the Creative Commons Attribution License (, whichpermitsunrestricted use, distribution, and reproduction in any medium, provided the original workisproperlycited.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.