Abstract
SummaryVegetative propagation of the edible climber Gnetum africanum Welw. was examined using a low technology non-mist propagation system in Cameroon. Leafy stem cuttings taken from vines growing naturally in a forest reserve were allocated randomly to experimental treatments. Three separate experiments tested respectively: (i) six propagation media, namely sawdust (SD), fine sand (FS), medium sand (MS), gravel (G), and 50:50 mixtures of G:SD and MS:SD; (ii) five IBA concentrations, namely 0, 8, 40, 200 and 250 µg IBA dissolved in 10 µl of alcohol; and (iii) five leaf-area treatments, namely 0, 12.5, 25, 50 and 80 cm2, obtained using paper templates. Propagation medium had a significant effect on final rooting percentage, values ranging from 43–82% in MS:SD and SD respectively. Although IBA had no significant effect on final rooting percentage, root number per rooted cutting was positively related to IBA concentration, values ranging from 6.8–13.8 in the 0 and 250 µg treatments respectively. Rooting perc...
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