Título:	Grapevine root distribution in drip and microsprinkler irrigation.
Autoria:	BASSOI, L. H. HOPMANS, J. W. JORGE, L. A. de C. ALENCAR, C. M. de SILVA, J. A. M. e.
Afiliação:	LUIS HENRIQUE BASSOI, CPATSA.
Ano de publicação:	2003
Referência:	Scientia Agricola, Piracicaba, v. 60, n. 2, p. 377-387, abr./jun. 2003.
Conteúdo:	Grape (Vitis vinifera L.) yield and its quality are dependent of the root system. Root distribution information is also valuable for soil and water management. An analysis of methods to evaluate the root distribution of grapevines for both, drip and microsprinkler irrigation in a Typic Acrustox is presented for the table grape cv. Italia grafted on the rootstock IAC-313, in Northeastern Brazil. Measured root parameters using the monolith method were root dry weight (Dw) and root length density (Lv), while root area (Ap) was estimated using the soil profile method in combination with digital image analysis. For both irrigation systems, roots were present to the 1 m soil depth and extended laterally to 1 m distance from the trunk, but grapevines irrigated by microsprinkler dhowed greater root presence as the distance from the trunk increased. Values of Ap were reasonably well correlated to Dw and Lv. However, correlation values were higher when fractional root distribution was used. The soil profile method in combination with image analysis techniques, allows proper grapevive root distribution evaluation.
Thesagro:	Uva Irrigação Raiz Vitis Vinifera
NAL Thesaurus:	Grapes Irrigation
Palavras-chave:	Imagem digital Videira irrigada
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)