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Transpiração em Plantas de Algaroba (Prosopis juliflora (Sw.) DC.) Cultivadas no Semi-Árido Nordestino

2003; Brazilian Association of Water Resources; Volume: 8; Issue: 4 Linguagem: Inglês

10.21168/rbrh.v8n4.p25-30

ISSN

2318-0331

Autores

Peter M Fleming, Antônio Celso Dantas Antonino, Rejane Magalhães de Mendonça Pimentel, Carlos Alberto Brayner de Oliveira Lira, Gilberto Alves, J. A. Silva Cabral,

Tópico(s)

Leaf Properties and Growth Measurement

Resumo

Prosopis transpiration was determined in the dry season, from August 31 st to September 5 th 2001, by measuring water flux inside an active xylem with a thermal sap velocity probe.Field studies were carried out at a site with 53 Prosopis juliflora trees on " São Bento" farm, in the Coxixola district, state of Paraíba, Northeastern Brazil.Three similar-sized individuals were chosen for monitoring.The average sap flow was 0.17 mm per day corresponding to 4.4% of reference evapotranspiration.Transpiration values are the result of an efficient control of stomatal opening and closing.

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