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dc.contributor.author Alvarez-Maldini, C
dc.contributor.author Acevedo, M
dc.contributor.author Pinto, M
dc.date.accessioned 2024-01-17T15:54:40Z
dc.date.available 2024-01-17T15:54:40Z
dc.date.issued 2021
dc.identifier.uri https://repositorio.uoh.cl/handle/611/585
dc.description.abstract As a consequence of climate change, water scarcity has increased the use of the iso-/anisohydric concept with the aim of identifying anisohydric or drought-tolerant genotypes. Recently, Meinzer and colleagues developed a metric for discriminating between iso- and anisohydric behavior called the hydroscape, which describes a range in which stomata control leaf water potential (psi) with decreasing water availability, and it is linked to several water-regulation and drought-tolerance traits. Thus, our objective was to test the usefulness of the hydroscape in discriminating between iso- and anisohydric Prunus dulcis cultivars, a species that is widely cultivated in Mediterranean central Chile due to its ability to withstand water stress. Through a pot desiccation experiment, we determined that the hydroscape was able to discriminate between two contrasting Prunus cultivars; the more anisohydric cultivar had a hydroscape 4.5 times greater than that of the other cultivar, and the hydroscape correlated with other metrics of plant water-use strategies, such as the maximum range of daily psi variation and the psi at stomatal closure. Moreover, the photosynthesis rates were also differently affected between cultivars. The more isohydric cultivar, which had a smaller hydroscape, displayed a steeper photosynthesis reduction at progressively lower midday psi. This methodology could be further used to identify drought-tolerant anisohydric Prunus cultivars.
dc.relation.uri http://dx.doi.org/10.3390/plants10061249
dc.subject drought stress
dc.subject leaf water potential
dc.subject stomatal regulation
dc.subject gas exchange
dc.subject isohydric
dc.title Hydroscapes: A Useful Metric for Distinguishing Iso-/Anisohydric Behavior in Almond Cultivars
dc.type Artículo
uoh.revista PLANTS-BASEL
dc.identifier.doi 10.3390/plants10061249
dc.citation.volume 10
dc.citation.issue 6
dc.identifier.orcid Alvarez-Maldini, Carolina/0000-0002-7372-6019
dc.identifier.orcid Acevedo Tapia, Manuel/0000-0001-7761-6936
uoh.indizacion Web of Science


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