Working Document Series Open Access 2012 RUF-32552

Adapting Selected Grafting Techniques to Propagation of Vitellaria Paradoxa ssp. Nilotica (the Shea Butter Tree) in Uganda

M. MalingaD. ObuaC.A. OkiaJ.B.L. Okullo

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Abstract

166 words

This preliminary study is being carried out in Adwari Sub County, Otuke District (Northern Uganda). The aim of the study is to adapt an appropriate grafting technique for propagating Vitellaria paradoxa in Uganda. Two grafting techniques (splice and top wedge) have been tested on varying ages of V.paradoxa wild seedlings and saplings. The results so far indicate that grafting methods had no significant (P =0.423) effect on scion survival before 16 weeks after grafting. However, the splice grafting method had 14.3 % and top wedge grafting method had 0% scions’ survival up to 5½ weeks. The age of rootstock had no significant effect on grafting success (P =0.423). Grafts on seedlings had the highest rate of survival of scions at a decreasing rate than saplings up to 5½ weeks after grafting. Further experiments are still needed to determine with certainty whether the response of V. paradoxa grafts to scions survival can or can not be influenced by both grafting methods and ages of the wild rootstock.

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