SciELO - Scientific Electronic Library Online

 
vol.22 número1Variación de la composición de la dieta del venado cola blanca (Odocoileus virginianus) en la Reserva de la Biosfera Tehuacán-Cuicatlán índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Revista Chapingo serie ciencias forestales y del ambiente

versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828

Resumen

FANG, Yan; ENHE, Zhang; QINLI, Wang  y  ZHUHONG, Mao. Germination and dormancy-breaking of Daphne giraldii Nitsche (Thymelaeaceae) seeds from northwestern China. Rev. Chapingo ser. cienc. for. ambient [online]. 2016, vol.22, n.1, pp.99-113. ISSN 2007-4018.  http://dx.doi.org/10.5154/r.rchscfa.2015.04.015.

Daphne giraldii Nitsche (Thymelaeaceae) is a perennial evergreen shrub that is widely used in the ornamental plant and pharmaceutical industries in China. It exhibits dormancy, which delays and reduces germination. This study determined the effects of chemical treatment, stratification and burial treatment for overcoming the seed dormancy of D. giraldii. Results showed that chemical pre-treatment was less effective in breaking dormancy. The best germination percentage (GP) was 52.33 %, a germination rate (GR) of 1.19 only observed after 70 d of seed stratification at 5 °C treatment, indicating that the germination behavior of D. giraldii was not significantly affected by stratification. The physiological dormancy of D. giraldii seeds was alleviated during burial. Seeds buried at 100 cm depth for 170 days showed the highest germination success with GP of 86.5 % and GR of 10.11, which was the most effective treatment to alleviate seed dormancy. This information may be useful to restore and conserve other shrubs grown in Northwestern China and elucidate their survival under similar extreme environments.

Palabras llave : Stratification; gibberellic acid; 6-benzyladenine; burial; germination capacity.

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