Early growth and physiological acclimation to shade and water restriction of seven sclerophyllous species of the mediterranean forests of central Chile

Yáñez, Marco A.; Espinoza, Sergio E; Magni, Carlos; Martínez-Herrera, Eduardo

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dc.contributor.author	Yáñez, Marco A.
dc.contributor.author	Espinoza, Sergio E
dc.contributor.author	Magni, Carlos
dc.contributor.author	Martínez-Herrera, Eduardo
dc.date.accessioned	2024-10-08T13:43:06Z
dc.date.available	2024-10-08T13:43:06Z
dc.date.issued	2024
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/5699
dc.description.abstract	The success of using active restoration in Mediterranean-type climate zones mostly depends on an appropriate matching of plant species and specific management prescriptions upon establishment. In this study, we assessed the early growth and short-term physiological acclimation of seven common species found in the sclerophyllous forests in central Chile to water restriction and shading. We established a nursery experiment that included three treatments (T0: sun-exposed and water-restricted, T1: sun-exposed and fully irrigated, and T2: shaded and fully irrigated) and seven tree species differing in their shade and drought tolerance (Quillaja saponaria Molina, Aristotelia chilensis (Mol.) Stuntz, Peumus boldus Molina, Lithraea caustica (Mol.) Hook. and Arn, Luma apiculata (DC.) Burret, Colliguaja odorifera Molina, and Escallonia pulverulenta (Ruiz and Prav.) Pers). We measured the increment in seedling height and different leaf morpho-physiological traits during two months in the dry season. Based on the measured traits, none of the species took advantage of the higher water availability in T1 relative to T0, but most of the species responded to the shade in T2, regardless of their shade or drought tolerance. Height increments due to shade varied from 0% in P. boldus to 203% in L. apiculata. Overall, all the species responded similarly to the treatments in specific leaf area, chlorophyll content index, photosynthetic rate, stomatal conductance, and intrinsic water use efficiency. This suggests that the species exhibited similar acclimation patterns of these parameters to shade and drought, even regarding the variation in midday xylem water potential found in the water-restricted treatment T0 (from −1.5 MPa in P. boldus to −3.1 MPa in E. pulverulenta). In this study, shading had a higher positive effect on the seedling performance of sclerophyllous species than watering, which at operational level highlights the need for investing in tree shelters when using these species in restoration programs.	es_CL
dc.language.iso	en	es_CL
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 Chile	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/cl/	*
dc.source	Plants, 13(17), 2410	es_CL
dc.subject	Shade tolerance	es_CL
dc.subject	Drought tolerance	es_CL
dc.subject	Sclerophyllous species	es_CL
dc.subject	Mediterranean climates	es_CL
dc.subject	Forest restoration	es_CL
dc.title	Early growth and physiological acclimation to shade and water restriction of seven sclerophyllous species of the mediterranean forests of central Chile	es_CL
dc.type	Article	es_CL
dc.ucm.facultad	Facultad de Ciencias Agrarias y Forestales	es_CL
dc.ucm.indexacion	Scopus	es_CL
dc.ucm.uri	mdpi.com/2223-7747/13/17/2410	es_CL
dc.ucm.doi	doi.org/10.3390/plants13172410	es_CL