SciELO - Scientific Electronic Library Online

 
vol.40 número4Características seminales de cinco variedades de morera (Morus alba L.) cosechadas en Matanzas, CubaEvaluación agronómica y selección de accesiones de Brachiaria spp. en suelos de mediana fertilidad 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

  • No hay articulos similaresSimilares en SciELO

Compartir


Pastos y Forrajes

versión impresa ISSN 0864-0394versión On-line ISSN 2078-8452

Resumen

SANCHEZ-RENDON, Jorge Alberto et al. Effect of controlled conditions on the germination of five Morus alba L. varieties. Pastos y Forrajes [online]. 2017, vol.40, n.4, pp.281-289. ISSN 0864-0394.

The objective of this study was to determine the effect of substrate temperature and light/darkness alternation, on the germination response of fresh seeds (sexually obtained) of five Morus alba L. varieties (cubana, tigreada, universidad, universidad mejorada and yu-62) harvested in Matanzas Cuba, from two different lots. In the essays a completely randomized design was used; the percentage data of final germination and mean germination time were processed through a simple-classification variance analysis (ANOVA), with factorial arrangement of the treatments. The germination was evaluated at fixed temperature (25 ºC) and in four thermoperiods (25/30 ºC, 25/35 ºC, 25/40 ºC and 25/45 ºC), under two conditions (light and darkness). The seeds did not show dormancy; the highest percentages of final germination for all the varieties were reached at 25/35 ºC with light, although high germination percentages were also obtained in total darkness when the seeds were placed at 25/40 ºC. On the other hand, the fixed temperature of 25 ºC caused in all the varieties a thermoinhibition of germination. The high diversity of germination responses in the studied M. alba varieties, in each harvest date, was shown; which indicates that the germination process can occur under different environmental conditions, particularly where there is a wide fluctuation of temperature.

Palabras clave : light; seeds; temperature.

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

 

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