Abstract
The effect of exogenous auxins on the development of root system in cladodes of Opuntia ficus-indica was tested using different concentrations of indole butyric acid (lBA), naphthalene acetic acid (NAA) and a combination of IBA and NAA, and the control treated with 50% aqueous solution of ethanol. Results obtained showed that rooting in cladodes is most effective when treated with 2500 mg L-1 of IBA. A non-significant effect on rooting was observed when cladodes were treated with NAA alone or in combination with IBA. The development of O. ficus-indica in orchard and farmlands particularly in the dry Sudano-Sahelian zone of Nigeria would provide a valuable source of vegetarian food for humans and feed for livestock.
Key words: Opuntia ficus-indica, rooting, cladodes, Indole butyric acid (IBA) Naphthalene acetic acid (NAA).