SciELO - Scientific Electronic Library Online

 
vol.83 número2Efecto del fuego controlado en la producción de forraje y valor nutritivo de la gramínea perenne Saccharum griffithii índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

Compartir


Phyton (Buenos Aires)

versión On-line ISSN 1851-5657

Resumen

DIAZ-MIGUEL, M; CASTRO, J  y  GARCIA, PA. Seed germination after freezing in high-mountain plant species: Implications for ski-run restoration. Phyton (B. Aires) [online]. 2014, vol.83, n.2, pp.423-429. ISSN 1851-5657.

The construction of a ski slope implies a strong environmental impact as a result of the removal of the vegetation cover. The need to protect the soil requires a rapid restoration of vegetation, which is often done with commercial seed mixtures that can cause a negative impact on these high mountain ecosystems. Thus, the use of seeds of native species is essential, especially in areas rich in endemic species. The compaction of snow as a result of the preparation of the ski slopes causes the soil to freeze. This hinders the germination of seeds, especially those of shrub species. This paper analyzes, under laboratory conditions, how freezing and phytohormone application affect the seed germination of three endemic shrubby species used in the restoration of the ski slopes on Sierra Nevada (S. Spain). Freezing considerably reduced the germination of all species. However, when seeds were previously subjected to phytohormones, the germination percentage increased up to 10-fold with respect to seeds not treated with growth regulators. The results suggest that treating seeds with phytohormones could improve the restoration of the ski slopes with native species.

Palabras clave : Germination; High-mountain plant species; Plantgrowth regulators; Ski-slope restoration; Soil freezing.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons