Data/hora: 12/06/2024 05:22:12

Provedor de dados: | 94
País: | Brazil
Título: | Use of the heat dissipation method for sap flow measurement in citrus nursery trees1
Autores: | Girardi,Eduardo Augusto; Mourão Filho,Francisco de Assis Alves; Delgado-Rojas,Juan Sinforiano; Araújo,João Paulo de Campos.
Data: | 2010-12-01
Ano: | 2010
Palavras-chave: | Brazil; Citrus spp.; Irrigation; Plant propagation; Screened production.
Resumo: | Sap flow could be used as physiological parameter to assist irrigation of screen house citrus nursery trees by continuous water consumption estimation. Herein we report a first set of results indicating the potential use of the heat dissipation method for sap flow measurement in containerized citrus nursery trees. 'Valencia' sweet orange [Citrus sinensis (L.) Osbeck] budded on 'Rangpur' lime (Citrus limonia Osbeck) was evaluated for 30 days during summer. Heat dissipation probes and thermocouple sensors were constructed with low-cost and easily available materials in order to improve accessibility of the method. Sap flow showed high correlation to air temperature inside the screen house. However, errors due to natural thermal gradient and plant tissue injuries affected measurement precision. Transpiration estimated by sap flow measurement was four times higher than gravimetric measurement. Improved micro-probes, adequate method calibration, and non-toxic insulating materials should be further investigated.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000400005
Editor: | Sociedade Brasileira de Fruticultura
Relação: | 10.1590/S0100-29452011005000007
Formato: | text/html
Fonte: | Revista Brasileira de Fruticultura  v.32 n.4 2010
Fonte: | info:eu-repo/semantics/openAccess