Repositorio
Institucional

Retamales, Jorge B.

Lobos, Tomas E.#Ortega-Farias, Samuel#Hanson, Eric J.#Lopez-Olivari, Rafael#Mora, Maria L.

Regulated deficit irrigation effects on physiological parameters, yield, fruit quality and antioxidants of Vaccinium corymbosum plants cv. Brigitta

SPRINGER

IRRIGATION SCIENCE

en

Highbush blueberries require sufficient water throughout the growing season, especially during fruit development. Regulated deficit irrigation (RDI) has been used in many fruit crops to save water and potentially increase fruit quality without reducing yield. Our aim was to determine the effects of RDI on yield, plant-water relations, and fruit quality at harvest. Three irrigation treatments based on actual evapotranspiration (ETa) were applied: 50, 75 and 100% (control) to six-year-old 'Brigitta' highbush blueberries in Colbun, Maule Region, Chile, for seasons 2013-2014 and 2014-2015 and to 26-year-old 'Brigitta' plants in South Haven, Michigan, USA, during the 2014 season. Severe water deficit treatment (50% ETa) decreased photosynthetic rate, vegetative growth (second season in Colbun and South Haven's trial), and fruit quality (berry size, titratable acidity, soluble solids, weight), and increased oxidative stress during both seasons in ColbAn. The 50% ETa treatment also had the highest yield reduction during Colbun's second season. In contrast, mild water stress (75% ETa) resulted in similar fruit yields and quality (firmness, fruit size, titratable acidity, soluble solids and berry weight) but with higher water productivity than the 100% ETa treatment, while it achieved intermediate values for antioxidant capacity compared to the 50% ETa treatment.

Artículo original

The authors would like to thank: Doctorado en Ciencias de Recursos Naturales, CONICYT scholarship 21110856 and 2968/2015, Fulbright and Becas-Chile visiting research scholar grant (2714/2011), Universidad de La Frontera, Universidad de Talca, Research program on Adaptation of Agriculture to Climate Change (PIEI A2C2), CITRA-U. Talca fellowship, Michigan State University, Agricola Sofama and DeGrandchamps farms.

Los autores agradecen a: Doctorado en Ciencias de Recursos Naturales, beca CONICYT 21110856 y 2968/2015, beca de investigación visitante Fulbright y Becas-Chile (2714/2011), Universidad de La Frontera, Universidad de Talca, Programa de Investigación en Adaptación de la Agricultura al Cambio Climático (PIEI A2C2), CITRA-U. Beca Talca, Universidad Estatal de Michigan, Fincas Agrícola Sofama y DeGrandchamps.

10.1007/s00271-017-0564-6

pdf

Abiotic stress# Blueberry# Water management# Water stress# Plant performance# Plant growth

http://dx.doi.org/10.1007/s00271-017-0564-6

Agronomy# Water Resources

Estrés abiótico# Arándano# Gestión del agua# Estrés hídrico# Rendimiento de la planta# Crecimiento de las plantas

Agricultura

Agronomía

Oceanografía, Hidrología y Recursos del Agua

WOS:000419895800005

Regulated deficit irrigation effects on physiological parameters, yield, fruit quality and antioxidants of <i>Vaccinium corymbosum</i> plants cv. Brigitta

Artículo original

version publicada

SPRINGER

IRRIGATION SCIENCE

Agronomía# Recursos hídricos

0342-7188

en

ANID CONICYT 21110856#ANID 2968/2015# Fulbright Becas-Chile 2714/2011#UFRO#UTAL PIEI A2C2#Michigan State University#Agricola Sofama and DeGrandchamps

ANID CONICYT 21110856

ANID CONICYT 2968/2015

ANID Fulbright and Becas-Chil 2714/2011

UTAL PIEI A2C2

The authors would like to thank: Doctorado en Ciencias de Recursos Naturales, CONICYT scholarship 21110856 and 2968/2015, Fulbright and Becas-Chile visiting research scholar grant (2714/2011), Universidad de La Frontera, Universidad de Talca, Research program on Adaptation of Agriculture to Climate Change (PIEI A2C2), CITRA-U. Talca fellowship, Michigan State University, Agricola Sofama and DeGrandchamps farms.

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