The Behaviour of Vine Varieties to Downy Mildew Attack (Plasmopara Viticola Berk & Curt) in Ampelographic Collection in the Conditions of USAMV Cluj - Napoca

摘要

Viticulture is an agriculture intensive industry branch, characterized by a high recovery coefficient of the land. Grapes can be consumed in fresh condition and also they are the raw material for the obtaining of wines, sparkling wines and distillates from wine, alcoholic beverages with the significant share in consumption. Downy mildew was and shall remain one of the major diseases present in vineyards producing significant damage. Attack frequency and intensity are influenced by the source of the inoculum, the climatic conditions and the sensitivity or resistance of crop varieties taken in culture. The aim of this paper is the study of the behavior of some table grapes and wine from the didactic and experimental collection of the U. A. S. V. M. Cluj-Napoca at the attack of downy mildew - Plasmopara viticola (Berk & Curt), in the climatic conditions of year 2011