SciELO - Scientific Electronic Library Online

 
vol.30 número3Aporte de hojarasca en bosques del predelta del río Paraná (Argentina)Reconocimiento del efecto de Cinara cupressi (Hemiptera: Aphididae) en el estado sanitario de Austrocedrus chilensis mediante imágenes multiespectrales índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Bosque (Valdivia)

versión On-line ISSN 0717-9200

Resumen

BUENO, Mirian et al. Assessment of the physiological quality of seeds of Maytenus vitis-idaea cultured in vitro. Bosque (Valdivia) [online]. 2009, vol.30, n.3, pp.146-150. ISSN 0717-9200.  http://dx.doi.org/10.4067/S0717-92002009000300004.

Maytenus vitis-idaea is a bush which reaches 2-5 m in height. It is found in the Paraguayan-Bolivian Chaco and in the north and central regions of Argentina. In addition to its ecological importance, its leaves were used as salt by the native inhabitants of Paraguay and have medicinal value. The objective of this work was to study the physiological quality of M. vitis-idaea seeds cultured in vitro with the purpose to start improvement of biotechnological protocols because its germination is rather unknown and there is no information about in vitro culture for this species. Seeds were tested with the topographical tetrazolium test, and seeds were grown in agar-water (AA) and a medium containing mineral salts and vitamins of Murashige and Skoog (1962) (MS). The following data were recorded: germination percentage, speed of germination (VG) and average time to reach maximum germination (TM). Root and hypocotyls length was measured during 44 days. The tetrazolium test showed 100% viability of the seeds. Germination percentage was significantly higher in the AA medium (62%) than in MS medium (36%) at 20 days after the implantation; germination percentages at 40 days were 92 and 100% for AA and MS, respectively. In vitro culture of M. vitis-idaea seeds in the medium without mineral salts hastened germination and promoted the vigour of the seeds.

Palabras clave : Maytenus vitis-idaea; germination; tissue culture.

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

 

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