01860nam a2200217 a 450000100080000000500110000800800410001910000260006024500990008626002560018552008780044165300230131965300230134265300190136565300780138465300770146265300310153965300350157070000200160570000170162521130342023-09-06       2016    bl uuuu     u00u1 u    #d1 aCONCEIÇÃO, M. A. F.  aEstimating mcc system dryness index using the vineyard water indicator.h[electronic resource]  aIn: WORLD VINE AND WINE CONGRESS, 39.; GENERAL ASSEMBLY OF THE OIV, 14., 2016, Bento Gonçalves. Vitiviniculture: technological advances to market challenges: abstracts. Bento Gonçalves: International Organisation of Vine and Wine, n. 2016-1302c2016  aThe Geoviticulture Multicriteria Climatic Classification System (MCC System) has been employed in different regions of the world for grapevine zoning studies. The Dryness Index (DI) is one of the three MCC indices and its calculation is based on a soil water balance approach. However, other climatic indices are still been used for the same purpose. One of them is the Vineyard Water Indicator (VWI). This index represents the ratio between the total rainfall and vineyard water requirement during the productive period of the culture. When compared to DI, the VWI has a simpler calculation methodology. Therefore, the aim of the present study was to establish a model to estimate DI based on VWI values. Climate data of 82 winegrowing regions in 18 countries were used. Four regression models were evaluated: linear, quadratic, logarithmic and the Mitscherlich model. ...  aDryness Ind ex (DI  aDryness Index (DI)  aGeoviticulture  aGeoviticulture Multicriteria Climatic Classific ation System (MCC System)  aGeoviticulture Multicriteria Climatic Classification System (MCC System)  aSoil water balance approac  aVineyard Water Indicator (VWI)1 aSOUZA, R. T. de1 aTONIETTO, J.