Sap flow in ‘Tommy Atkins’ mango trees under regulated deficit irrigation

  • Carlos Elizio Cotrim Instituto Federal de Educação, Ciência e Tecnologia Baiano (IFBaiano), Guanambi, BA, Brasil Setor de Agricultura.
  • Marcelo Rocha dos Santos Instituto Federal de Educação, Ciência e Tecnologia Baiano (IFBaiano), Guanambi, BA, Brasil Setor de Agricultura.
  • Maurício Antônio Coelho Filho Embrapa Mandioca e Fruticultura, Cruz das Almas, BA, Brasil
  • Eugênio Ferreira Coelho Embrapa Mandioca e Fruticultura, Cruz das Almas, BA, Brasil
  • João Abel da Silva Instituto Federal de Educação, Ciência e Tecnologia Baiano (IFBaiano), Guanambi, BA, Brasil Setor de Agricultura.
DOI: https://doi.org/10.4136/ambi-agua.2316
Keywords: irrigation management, Granier, transpiration, water use efficiency.

Abstract

Knowledge of transpiration is of fundamental importance for improving irrigation management. This study measured sap flow of the 'Tommy Atkins' mango tree using Granier’s thermal dissipation probe method under regulated deficit irrigation. The work was conducted in a 10-year-old ‘Tommy Atkins’ mango orchard, irrigated by micro sprinkler, located in the Irrigated Perimeter of Ceraíma, in Guanambi, Bahia, Brazil. Sap flow measurements were carried out on three consecutive days in plants under regulated deficit irrigation, with reductions of 30 and 60% of crop evapotranspiration in three phases of fruit development; beginning of flowering to early fruit growth (Phase I), fruit expansion (Phase II) and physiological maturation of fruits (Phase III). Regulated deficit irrigation led to reduced sap flow in ‘Tommy Atkins’ mango tree.


Published
26/04/2019
Issue
Vol. 14 No. 3 (2019)
Section
Papers

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