IRTA Torre Marimon Ecophysiology

Caldes de Montbui, Spain

IRTA Torre Marimon Ecophysiology

Caldes de Montbui, Spain

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Biel C.,IRTA Torre Marimon Ecophysiology | A. Abdelfatah,IRTA Torre Marimon Ecophysiology | De Herralde F.,IRTA Torre Marimon Ecophysiology | Save R.,IRTA Torre Marimon Ecophysiology | Aranda X.,IRTA Torre Marimon Ecophysiology
Acta Horticulturae | Year: 2012

Sap flow and maximum daily shrinkage (MDS) are two parameters that can be used for irrigation decision-making. An assay was raised under controlled conditions where drought was imposed by irrigation withdrawal in cherry plants to compare their response of MDS with that of other ecophysiological parameters commonly used in water relations studies. Results showed contrasting relationships between MDS and sap flow depending on the degree of water stress that could be due to stomatal regulation. At a daily timescale, trunk diameter variation and sap flow were related to each other via a loop that differs according to tree water status. MDS resulted more sensitive to drought than sap flow, but the simultaneous use of both indicators rendered complementary information sensitive to the water status of the plants.

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