Revue internationale d'écologie méditerranéenne International ...

The results obtained in this study provide us
with a clearer understanding of the poor
establishment of L. spartum in desert areas in
Algeria. Seed dormancy plays a significant
role in determining germination under natural
conditions. However, the negative
response of after-ripened dispersal units to
daylight, and their sensitivity to water potential
of the medium are probably responsible
for incomplete germination and maintenance
of part of the seed populations in the soil.
Emergence of L. spartum seedlings in relation
to climatic conditions might be the subject of
further investigations in order to try to
improve regeneration of this species in its natural
habitat.
Acknowledgement
The authors acknowledge the support of the
Franco-Algerian Cooperation project
93/Murs/27.
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