Controlled deficit irrigation as a water-saving strategy for processing tomato
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Otros documentos de la autoría: Valcárcel, Mercedes; Lahoz García, Inmaculada; Campillo, Carlos; Martí, Raúl; Leiva-Brondo, Miguel; Roselló, Salvador; Cebolla-Cornejo, Jaime
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INVESTIGACIONMetadatos
Título
Controlled deficit irrigation as a water-saving strategy for processing tomatoAutoría
Fecha de publicación
2020-02-05Editor
ElsevierISSN
0304-4238Cita bibliográfica
VALCÁRCEL, Mercedes, et al. Controlled deficit irrigation as a water-saving strategy for processing tomato. Scientia Horticulturae, 2020, vol. 261, p. 108972Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/abs/pii/S0304423819308581Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
In a complex scenario characterized by climate change and increasing population demand, it is
necessary to adopt production strategies involving a lower use of water. For this purpose,
controlled deficit irrigation, ... [+]
In a complex scenario characterized by climate change and increasing population demand, it is
necessary to adopt production strategies involving a lower use of water. For this purpose,
controlled deficit irrigation, CDI, strategies with an initial full irrigation covering 100% crop
evapotranspiration (ETc) followed by mild (50%ETc) and moderate (75%ETc) irrigation
restrictions after the fruit set stage were evaluated. The study was performed during two years in
two growing areas of processing tomato in Spain, using conventional and high-lycopene cultivars.
With moderate levels of CDI an average saving of water of 26.1% was achieved, but productivity
was reduced on average by 10.7%. It should be considered though, that the effect was dependent
on the environment and genotype, and high-yield cultivars seemed to be more sensitive to the
negative effects of moderate CDI on productivity. In contrast, mild CDI levels did not affect
productivity and still entailed a water saving of 13%. Moderate CDI levels increased soluble
solids content, but this increase was not due to a higher accumulation of taste-related compounds,
such as sugars and acids. Indeed, irrigation dose had no significant effect on the levels of fructose,
glucose, citric and glutamic acid nor on derived variables related to tomato acceptability and CDI
decreased the levels of malic acid. Considering previous results, mild CDI strategies would be
preferred to continuous deficit irrigation strategies as the former contribute to reduce the use of
water, an increasingly scarce resource, avoiding negative impacts on productivity, a key parameter to promote farmer adoption of CDI strategies. [-]
Publicado en
Scientia Horticulturae, 2020, vol. 261, p. 108972Proyecto de investigación
This research was funded by Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria with the project RTA2011-00062 and GRU 15112 and AGROS financed by Gobierno de Extremadura. These projects were co-funded by the Fondo Europeo de Desarrollo Regional (FEDER, EU).Derechos de acceso
info:eu-repo/semantics/openAccess
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