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	Provedor de dados AGRIAMBI (1) Autor Bergamaschi,Homero (1) Bergonci,João Ito (1) Fuchs,Marcel (1) Rosa,Luís Mauro G. (1) Santos,Antonio Odair (1) Palavra-chave Heat pulse (1) Penman-Monteith (1) Transpiration (1) Zea mays L (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 1999 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última SUNLIT AND SHADED MAIZE CANOPY WATER LOSS UNDER VARIED WATER STRESS AGRIAMBI Santos,Antonio Odair; Bergamaschi,Homero; Fuchs,Marcel; Rosa,Luís Mauro G.; Bergonci,João Ito. ABSTRACT The precise estimation of transpiration from plant canopies is important for the monitoring of crop water use and management of many agricultural operations related to water use planning. The aim of this study was to estimate transpiration from sunlit and shaded fractions of a maize ( Zea mays L.) canopy, using the Penman-Monteith energy balance equation with modifications introduced by Fuchs et al. (1987) and Fuchs & Cohen (1989). Estimated values were validated by a heat pulse system, which was used to measure stem sap flow and by a weighing lysimeter. A relationship between incident radiation and leaf stomatal conductance for critical levels of leaf water potential was used to estimate transpiration. Results showed that computed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Transpiration; Penman-Monteith; Heat pulse; Zea mays L. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43661999000300261 Registros recuperados: 1 Primeira ... 1 ... Última

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