Effect of the soil matric potential on the germination capacity of prosopis chilensis, quillaja saponaria and cryptocarya alba from contrasting geographical origins

Faúndez, Ángela; Magni, Carlos R.; Martínez-Herrera, Eduardo; Espinoza, Sergio; Vaswani, Suraj A.; Yañez, Marco A.; Gréz, Iván; Seguel Seguel, Oscar; Abarca-Rojas, Betsabé; Quiroz, Iván A.

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dc.contributor.author	Faúndez, Ángela
dc.contributor.author	Magni, Carlos R.
dc.contributor.author	Martínez-Herrera, Eduardo
dc.contributor.author	Espinoza, Sergio
dc.contributor.author	Vaswani, Suraj A.
dc.contributor.author	Yañez, Marco A.
dc.contributor.author	Gréz, Iván
dc.contributor.author	Seguel Seguel, Oscar
dc.contributor.author	Abarca-Rojas, Betsabé
dc.contributor.author	Quiroz, Iván A.
dc.date.accessioned	2022-12-14T17:26:56Z
dc.date.available	2022-12-14T17:26:56Z
dc.date.issued	2022
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/4216
dc.description.abstract	As a consequence of the megadrought in Central Chile, it is expected that most of the distribution of woody species will be narrowed in the northern limits because of restrictions imposed by soil matric potential on seed germination. In this study, we analyzed the effect of the soil matric potential on seed germination and initial recruitment of the sclerophyllous species Prosopis chilensis, Quillaja saponaria and Cryptocarya alba from contrasting geographic origins (i.e., seed sources). We evaluated the germination capacity (%) under different matric potentials (i.e., 0, −6, −33, −750 and −1250 kPa) for 100 days. Soil matric potential of −1250 kPa negatively affected the germination capacity of the three species. P. chilensis seeds stopped germinating under soil matric potential close to −1200 kPa, whereas in Q. saponaria and C. alba the complete inhibition of germination was under −1000 kPa. Seed sources also differed in their germination capacity by soil matric potential: northern seed sources of P. chilensis germinated with the lowest soil matric potential. There was no clear trend in Q. saponaria and C. alba, but in general, southern seed sources performed better than the northern ones. The results showed that Ψm in the soil played an important role in the germinative capacity against different seed source origins, but not in soils with a north–south gradient.	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, 11(21), 2963	es_CL
dc.subject	Soil water content	es_CL
dc.subject	Native flora	es_CL
dc.subject	Germination capacity	es_CL
dc.subject	Seed source	es_CL
dc.title	Effect of the soil matric potential on the germination capacity of prosopis chilensis, quillaja saponaria and cryptocarya alba from contrasting geographical origins	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.indexacion	Isi	es_CL
dc.ucm.uri	mdpi.com/2223-7747/11/21/2963	es_CL
dc.ucm.doi	doi.org/10.3390/plants11212963	es_CL