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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Detalles Bibliográficos
Autores principales: Fernández, María Emilia, Passera, Carlos Bernardo, Cony, Mariano Anibal
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2016
Materias:
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3219
Aporte de:
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record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Inglés
format Artículo revista
topic Capparis atamisquea
Larrea cuneifolia
potencial hídrico
conductancia estomática
región biogeográfica del Monte
tratamientos de preacondicionamiento
Capparis atamisquea
Larrea cuneifolia
water potential
stomatal conductance
Monte biogeographic region
preconditioning treatments
spellingShingle Capparis atamisquea
Larrea cuneifolia
potencial hídrico
conductancia estomática
región biogeográfica del Monte
tratamientos de preacondicionamiento
Capparis atamisquea
Larrea cuneifolia
water potential
stomatal conductance
Monte biogeographic region
preconditioning treatments
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 atamisquea
Larrea cuneifolia
potencial hídrico
conductancia estomática
región biogeográfica del Monte
tratamientos de preacondicionamiento
Capparis atamisquea
Larrea cuneifolia
water potential
stomatal conductance
Monte biogeographic region
preconditioning treatments
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
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, we analyzed the effects of water stress on sapling growth, water status and survival on two native shrub species of the Monte Desert. We 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.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2016
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3219
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