Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments

Revegetation in arid zones poses numerous challenges, due particularly to drought, extreme temperatures, high irradiance, and infertile soils, factors which threaten the survival of installed saplings. Nursery techniques to avoid transplant shock focus on manipulating the watering regime so as to fa...

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Autores principales: Fernández, María Emilia, Passera, Carlos Bernardo, Cony, Mariano Anibal
Formato: article Artículo publishedVersion
Lenguaje:Inglés
Publicado: Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 2016
Materias:
Acceso en línea:http://bdigital.uncu.edu.ar/8443
Aporte de:
id I11-R88443
record_format dspace
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-8
collection Biblioteca Digital
language Inglés
orig_language_str_mv eng
topic Capparis
Larrea cuneifolia
Potencial hídrico del suelo
Conductancia estomática
Capparis atamisquea
Larrea cuneifolia
Water potential
Stomatal conductance
Monte biogeographic region
Preconditioning treatments
Tratamientos de preacondicionamiento
Región biogeográfica del Monte
spellingShingle Capparis
Larrea cuneifolia
Potencial hídrico del suelo
Conductancia estomática
Capparis atamisquea
Larrea cuneifolia
Water potential
Stomatal conductance
Monte biogeographic region
Preconditioning treatments
Tratamientos de preacondicionamiento
Región biogeográfica del Monte
Fernández, María Emilia
Passera, Carlos Bernardo
Cony, Mariano Anibal
Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
topic_facet Capparis
Larrea cuneifolia
Potencial hídrico del suelo
Conductancia estomática
Capparis atamisquea
Larrea cuneifolia
Water potential
Stomatal conductance
Monte biogeographic region
Preconditioning treatments
Tratamientos de preacondicionamiento
Región biogeográfica del Monte
description Revegetation in arid zones poses numerous challenges, due particularly to drought, extreme temperatures, high irradiance, and infertile soils, factors which threaten the survival of installed saplings. Nursery techniques to avoid transplant shock focus on manipulating the watering regime so as to favor the acclimation of seedlings to unfavorable field conditions. In order to analyze the suitability of drought preconditioning treatments, analyzed the effects of water stress on sapling growth, water status and survival on two native shrub species of the Monte Desert. It was used a randomized experimental design with one fixed factor, with three levels of water supply: control (T1), moderate stress (T2), and severe stress (T3). Preconditioning treatments had a detrimental effect on the growth of saplings of both species, as it was clearly shown in the reduction of leaf area, sapling height, stem diameter, and biomass. Shoot-to-root ratio decreased significantly under T3 in both species, and they showed highly negative water potentials and low stomatal conductance under this treatment. Sapling survival decreased only under T3. Moderate water stress seems more suitable for preconditioning this species since it reduces growth, leaf area and leaf conductance without seedling mortality and maintaining a good growth rate.
format article
Artículo
Artículo
publishedVersion
author Fernández, María Emilia
Passera, Carlos Bernardo
Cony, Mariano Anibal
author_facet Fernández, María Emilia
Passera, Carlos Bernardo
Cony, Mariano Anibal
author_sort Fernández, María Emilia
title Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
title_short Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
title_full Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
title_fullStr Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
title_full_unstemmed Sapling growth, water status and survival of two native shrubs from the Monte Desert, Mendoza, Argentina, under different preconditioning treatments
title_sort sapling growth, water status and survival of two native shrubs from the monte desert, mendoza, argentina, under different preconditioning treatments
publisher Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
publishDate 2016
url http://bdigital.uncu.edu.ar/8443
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