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Effect of Regulated Deficit Irrigation (RDI) on the Growth and Development of Pear Fruit ( Pyrus communis L.), var. Triunfo de Viena

Author

Listed:
  • Javier Vélez-Sánchez

    (Department of Civil and Agricultural Engineering, Universidad Nacional de Colombia, Bogota 111321, Colombia)

  • Fánor Casierra-Posada

    (Program of Agricultural Engineering, Faculty of Agricultural Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia)

  • Gerhard Fischer

    (Department of Agronomy, Faculty of Agricultural Sciences, Universidad Nacional de Colombia, Bogota 111321, Colombia)

Abstract

The irrigation of crops represents 70% of the world’s water use. For crops grown in high-altitude tropical climates, due to the decrease in rainfall with increasing altitude, along with the effects of global warming, it is necessary to propose alternatives for sustainable fruit production with reduced water consumption. This study was carried out in Sesquilé, Colombia (South America), at an altitude of 2595 m a.s.l. for two successive years with pear trees, var. Triunfo de Viena. The objective of this work was to determine the effect of regulated deficit irrigation (RDI) on the absolute and relative growth rates of the equatorial diameter of the fruits, the fresh and dry weights, the number of fruits, the yield per tree and the water potential of the fruits. In 2014, during the rapid growth phase of the fruit, one group of plants was irrigated at 100% of the crop evapotranspiration (ETc) (control), another at 74% and a third group at 60%. In 2015, the three groups were irrigated at 100%, 48% and 27% of the ETc. The use of RDI did not significantly affect the growth of the fruits. This study showed that the ‘Triunfo de Viena’ pear tree not only has sufficient adaptive reserves, but also has good ecological plasticity under water stress conditions in high-altitude tropical climates. In cases where water is a limiting factor for pear tree production, RDI can obtain production rates similar to those of a regularly irrigated crop, as long as this technique is used and implemented in phenological states of low sensitivity to water stress without exceeding the tolerance limits of the plants to the stressor.

Suggested Citation

  • Javier Vélez-Sánchez & Fánor Casierra-Posada & Gerhard Fischer, 2023. "Effect of Regulated Deficit Irrigation (RDI) on the Growth and Development of Pear Fruit ( Pyrus communis L.), var. Triunfo de Viena," Sustainability, MDPI, vol. 15(18), pages 1-15, September.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:18:p:13392-:d:1234626
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    References listed on IDEAS

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    1. Intrigliolo, D.S. & Castel, J.R., 2006. "Performance of various water stress indicators for prediction of fruit size response to deficit irrigation in plum," Agricultural Water Management, Elsevier, vol. 83(1-2), pages 173-180, May.
    2. Velez, J.E. & Intrigliolo, D.S. & Castel, J.R., 2007. "Scheduling deficit irrigation of citrus trees with maximum daily trunk shrinkage," Agricultural Water Management, Elsevier, vol. 90(3), pages 197-204, June.
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