Allelopathic effects of Lantana camara (L) on regeneration of Riccia gangetica Ahmed. in half Knop's liquid culture medium.
Abstract
Explants obtained from the apical, middle and basal parts of R. gangetica were allowed to regenerate in petri dishes containing filter papers moistened with half-strength Knop's liquid culture supplemented with L. camara root, stem and leaf extracts at various concentrations (5, 10, 15, 20, 30, 40 and 50%). The regeneration percentage decreased with the increase in extract concentration. The leaf extract was the most inhibitory (mean regeneration value of 22.85%), followed by the stem (32.37%) and root (47.61%) extracts. The apical explants showed the greatest potential for regeneration (up to 47.61%), followed by the middle (39.99%) and basal (25.71%) explants. The regeneration was directly proportional to time and inversely proportional to the concentration of allelochemicals in the extracts.
