Title:	Estimating MCC system dryness index using the vineyard water indicator.
Authors:	CONCEIÇÃO, M. A. F. SOUZA, R. T. de TONIETTO, J.
Affiliation:	MARCO ANTONIO FONSECA CONCEICAO, CNPUV; REGINALDO TEODORO DE SOUZA, CNPUV; JORGE TONIETTO, CNPUV.
Date Issued:	2016
Citation:	IN: CONGRESSO MUNDIAL DA VINHA E DO VINHO, 39., 2016, Bento Gonçalves. Programa...Bento Gonçalves, RS: International Organisation of Vine and Wine (OIV): Ministério da Agricultura, Pecuária e Abastecimento, de 19 a 21 outubro, Resumo 2016-1302. 2016.
Description:	The 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. ...
Keywords:	Geoviticulture Multicriteria Climatic Classific ation System (MCC System) Dryness Ind ex (DI Soil water balance approac
Notes:	Resumo 2016-1302
Type of Material:	Resumo em anais e proceedings
Access:	openAccess
Appears in Collections:	Resumo em anais de congresso (CNPUV)