Pm. Mapongmetsem et al., The effect of various seed pretreatments to improve germination in eight indigenous tree species in the forests of Cameroon, ANN FOR SCI, 56(8), 1999, pp. 679-684
Techniques were tested for improving germination in eight tree species indi
genous to Cameroon forests. Manual scarification was the most efficient tre
atment for all species, although a significant interaction between treatmen
t and species was found. Only one species was sensitive to all treatments.
The use of sulphuric acid was not an effective alternative to manual scarif
ication. (C) 1999 Inra/Editions scientifiques et medicales Elsevier SAS.