PAPER TITLE :EFFECT OF LIGHT REGIME AND WATER STRESS ON GERMINATION AND SEEDLING GROWTH OF MORINGA OLEIFERA LAM.

FUTA JOURNAL OF RESEARCH IN SCIENCE | VOLUME 11 NUMBER 2 2015

Paper Details

  • Author(s) : T.E. Akinyemi and A.M.A. Sakpere
  • Abstract:

The effect of light, sowing depth and water stress on seed germination and seedling growth of Moringa oleifera was studied.  Moringa oleifera seeds were planted in Petri dishes under ambient conditions and placed in two growing conditions of light and dark and variation of water stress levels. Petri dishes were monitored daily over a period of 15 days, to record differences in germination percentage, rate of germination and seedling growth.  In addition, seedling growth parameters such as height, number and area of leaf, dry weights of root and shoot were measured.  The ratio of root to shoot (RSR) was also determined.  There were no significant differences in percentage germination in light and in the dark. Germination decreased while percentage mortality increased with increasing water stress levels. The speed of germination from planted seeds was highest in 1.5 cm (77.8%) sowing depth and lowest in 6.0 cm (55.6%) depth. There was significant effect of water stress on growth of established seedlings after a period of 4 weeks of being subjected to water stress. This study indicates that Moringa oleifera seedling is sensitive to growing environmental conditions such as soil moisture status.  The results also suggest that drought tolerance depends on root characters, at least, morphologically.    Keywords: Moringa oleifera, germination, light, water stress, drought tolerance,