Effects of a severe one-season water shortage on survival and yield in almond

Trabajo presentado en el IX International Symposium On Irrigation Of Horticultural Crops, celebrado en Matera (Italia) del 17 al 20 de junio de 2019.

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Main Authors: Romero, D. M., Fereres Castiel, Elías, Lorite, Ignacio J., González-Dugo, Victoria, Testi, Luca, Orgaz Rosua, Francisco
Format: comunicación de congreso biblioteca
Language:English
Published: 2019-06
Subjects:Drought management, Almond survival, Water stress threshold,
Online Access:http://hdl.handle.net/10261/208864
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spelling dig-ias-es-10261-2088642020-04-24T01:12:45Z Effects of a severe one-season water shortage on survival and yield in almond Romero, D. M. Fereres Castiel, Elías Lorite, Ignacio J. González-Dugo, Victoria Testi, Luca Orgaz Rosua, Francisco Drought management Almond survival Water stress threshold Trabajo presentado en el IX International Symposium On Irrigation Of Horticultural Crops, celebrado en Matera (Italia) del 17 al 20 de junio de 2019. The cultivation of the almond tree in Spain is currently undergoing a revolution. Production intensification, as it has been done in California in the past, is taking place with new orchards being planted with modern varieties and high tree densities under irrigation. In some regions, where water shortage is a structural problem, there are in some years drastic reductions or even no water availability for irrigation. No data are available of long-term effects on almond production of drastic irrigation reductions in one season induced by a severe drought. In 2017, an experiment of one season irrigation reduction was made in a mature orchard of almond cv. Guara on GF-677 rootstock, with three treatments: Control, fully irrigated; Deficit, 25% of control; Rain fed, no irrigation. In 2018 all treatments were restored to full irrigation. Even though almond is considered a very drought resistant species, almost all trees died (98%) by dehydration caused by the long severe water stress period in rain fed treatment. Besides, water stress negatively affected yield. Kernel weight was affected the year of the drought, with reductions of 34% in the deficit treatment. Also pre-harvest stress increased the number of hull tights, almost 100% of the harvest in deficit treatments. Additionally, the number of nuts per tree was affected the following year in the D treatment, when the irrigation was restored, with a decrease of 17%. In this work it is argued that there is a need to determine water stress thresholds to the minimum irrigation that avoids almond tree death. Peer reviewed 2020-04-23T14:56:22Z 2020-04-23T14:56:22Z 2019-06 comunicación de congreso http://purl.org/coar/resource_type/c_5794 IX International Symposium On Irrigation Of Horticultural Crops (2019) http://hdl.handle.net/10261/208864 en Sí open
institution IAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ias-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IAS España
language English
topic Drought management
Almond survival
Water stress threshold
Drought management
Almond survival
Water stress threshold
spellingShingle Drought management
Almond survival
Water stress threshold
Drought management
Almond survival
Water stress threshold
Romero, D. M.
Fereres Castiel, Elías
Lorite, Ignacio J.
González-Dugo, Victoria
Testi, Luca
Orgaz Rosua, Francisco
Effects of a severe one-season water shortage on survival and yield in almond
description Trabajo presentado en el IX International Symposium On Irrigation Of Horticultural Crops, celebrado en Matera (Italia) del 17 al 20 de junio de 2019.
format comunicación de congreso
topic_facet Drought management
Almond survival
Water stress threshold
author Romero, D. M.
Fereres Castiel, Elías
Lorite, Ignacio J.
González-Dugo, Victoria
Testi, Luca
Orgaz Rosua, Francisco
author_facet Romero, D. M.
Fereres Castiel, Elías
Lorite, Ignacio J.
González-Dugo, Victoria
Testi, Luca
Orgaz Rosua, Francisco
author_sort Romero, D. M.
title Effects of a severe one-season water shortage on survival and yield in almond
title_short Effects of a severe one-season water shortage on survival and yield in almond
title_full Effects of a severe one-season water shortage on survival and yield in almond
title_fullStr Effects of a severe one-season water shortage on survival and yield in almond
title_full_unstemmed Effects of a severe one-season water shortage on survival and yield in almond
title_sort effects of a severe one-season water shortage on survival and yield in almond
publishDate 2019-06
url http://hdl.handle.net/10261/208864
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