Deficit Irrigation in Peach Orchards under Water Scarcity Conditions


The irrigation patterns in two peach orchards, located in the central eastern region of Portugal, called “Beira Interior”, and the effect of different amounts of irrigation on the total production and fruit quality were evaluated. The experiment was conducted in 2016, in two different orchards, and included three treatments correspondent to three different flow rates per tree: 8, 12 and 16 l/hour. The water balance, which included the water supplied by rain and irrigation and the crop evapotranspiration, was developed. At harvest, crop production, pulp firmness and percentage of the total soluble solids were evaluated. There were no significant differences between treatments in the average production per tree. However, in one of the orchards production increased with the volume of irrigation. In the same orchard, fruit firmness decreased with the increasing water supply. Total soluble solids had decreased with the increasing water supply in both orchards, probably as a consequence of the dilution effect due, directly, to the water incorporated in the fruits, or, indirectly, to the larger fruits produced by the trees that were irrigated more. In general, the treatments used in this study as well as in the farmers’ practices, the supplied water was in deficit, but the farmers tend empirically to follow closely the evolution of evapotranspiration.

Keywords: Deficit irrigation, Peach tree, Production, Total soluble solids, Fruit firmness

[1] Fereres, E., and Soriano, M.A. (2007). Deficit irrigation for reducing agricultural water use. J. Exp. Bot., 58(2), 147-159.

[2] Ruiz-Sánchez, M., Domingo, R., and Castel, J. (2010). Review: deficit irrigation in fruit trees and vines in Spain. Span. J. Agric. 8, 5–20.

[3] Duarte, A.C. (2016). A rega da cultura do pessegueiro. In +Pêssego - Guia prático da produção. M. P. Simões, coord. (Alcobaça: Centro Operativo e Tecnológico Hortofrutícola Nacional), pp. 123-144.

[4] Chalmers, D.J., Mitchell, P.D., and Van Heek, L. (1981). Control of peach tree growth andproductivity by regulated water supply: tree density and summer pruning. J.Am. Soc. Hortic. Sci. 106, 307–312.

[5] Buesa, I., Badal, E., Guerra, D., Ballester, C., Bonet, L., and Intringliolo, D.S. (2013). Regulated deficit irrigation in persimmon trees (Diospyros kaki) cv ‘RojoBrillante’. Sci. Hortic. 159, 134–142.

[6] Rosa, J.M., Conesa, M.R., Domingo, R., Aguayo, E., Falagán, N., and Pérez-Pastor, A. (2016). Combined effects of deficit irrigation and crop level on early nectarine trees, Agric. Water Manag., 170, 120-132.

[7] Falagán, N., Artés, F., Artés-Hernández, F., Gómez, P.A., Pérez-Pastor, A., and Aguayo, E. (2015). Comparative study on postharvest performance of nectarines grownunder regulated deficit irrigation. Postharv. Biol. Technol. 110, 24–32.

[8] Costa, M., Ortuno, M.F., and Chaves, M.M. (2007). Deficit Irrigation as a strategy to save water: physiology and potential application to horticulture. J. Integr. Plant Biol. 49(10), 1421- 1434.

[9] Reddy, P. (2016). Sustainable intensification of crop production, (Singapore: Springer), pp. 404.

[10] Simões, M.P., and Ferreira, D. (2016). Qualidade dos frutos. In +Pêssego - Guia prático da produção. M. P. Simões, coord. (Alcobaça: Centro Operativo e Tecnológico Hortofrutícola Nacional), pp. 193-214

[11] Allen, R.G., Pereira, L.S., Raes, D., and Smith, M. (1998). Crop evapotranspiration. Guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper No. 56, Rome.

[12] Ferreira, M.I. (1996). Evapotranspiração e stress hídrico em cobertos arbóreo- arbustivos numa perspectiva de gestão da água em região mediterrânica. An. Inst. Sup. Agron., 45, 343- 385.

[13] A.E.M., I.M. (Agencia Estatal de Metereología and Instituto de Meteorologia) (2011). Iberian climate atlas.

[14] Saccon, P. (2018). Water for agriculture, irrigation management. Appl. Soil Ecol., 123, 793-796

[15] Pérez-Pastor, A., Ruiz-Sánchez, M.C., and Domingo, R. (2014). Effects of timing andintensity of deficit irrigation on vegetative and fruit growth of apricot trees. Agric. Water Manag., 134, 110–118.

[16] Blum, A. (2005). Drought resistance, water-use efficiency, and yield potential – are they compatible, dissonant, or mutually exclusive? Aust. J. Agr. Res. 56(11), 1159-1168.

[17] Samperio, A., Moñino, M.J., Vivas, A., Blanco-Cipollone, F., Martín, A.G., and Prieto, M.H. (2015). Effect of deficit irrigation during stage II and post-harvest on tree water status, vegetative growth, yield and economic assessment in ‘Angeleno’ Japanese plum. Agric. Water Manag., 217, 81-97.

[18] Faci, J.M., Medina, E.T., Martínez-Cob, A., and Alonso, J.M. (2014). Fruit yield and quality response of a late season peach orchard to different irrigation regimes in a semi-arid environment. Agr. Water Manag., 143, 102-112.

[19] Guizani, M., Dabbou, S., Maatallah, S., Montevecchi, G., Hajlaoui, H., Rezig, M., Helal, A., and Kilani- Jaziri, S. (2019). Physiological responses and fruit quality of four peach cultivars under sustained and cyclic deficit irrigation in center-west of Tunisia, Agr. Water Manag., 217, 81-97.