Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/8631
Título: Estimation of leaf area in grapevine cv. Syrah using empirical models
Autor: Phinopoulos, Victoras Georgios
Orientador: Lopes, Carlos Manuel Antunes
Palavras-chave: leaf area
empirical model
non-destructive methods
Data de Defesa: 2014
Editora: ISA/UL
Citação: Phinopoulos, V.G. - Estimation of leaf area in grapevine cv. Syrah using empirical models. Lisboa: ISA, 2014, 65 p.
Resumo: Empirical models for the estimation of the Area of single Primary and Lateral leaves, and total Primary and Lateral Leaf Area of a shoot, are presented for the grapevine cv. Syrah (Vitis vinifera L.). The Area of single Leaves is estimated with models using the sum of the lengths of the two lateral veins of each leaf, with logarithmic transformation of both variables. Separate models are proposed for Primary and Lateral Leaves. Models based on the Lopes and Pinto (2005) method, using Mean Leaf Area multiplied by the number of Leaves as predictors, are proposed for the estimation for Total Primary and Lateral Leaf Area. It is suggested, that failure to locate the Largest Leaf of a Primary or Lateral shoot, would not significantly impair the accuracy of the models. All models explain a very high proportion of variability in Leaf Area and they can by applied in research and viticulture for the frequent estimation of Leaf Area in any phase of the growing cycle. They are inexpensive, practical, non-destructive methods which do not require specialised staff or expensive equipment
Descrição: Mestrado Vinifera EuroMaster - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/8631
Aparece nas colecções:BISA - Dissertações de Mestrado - Vinifera EuroMaster

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