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Effects of Different Treatments on Seed Germination and Improvement of Vitellaria paradoxa

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Document pages: 9 pages

Abstract: Shea butter (Vitellaria paradoxa) tree is one of the mostimportant tree species in Africa owing to its high potential in reduction ofpoverty and hunger in rural areas and enhancing environmental sustainability.All parts of shea tree are important from bark to wood and from leaves tofruits. Despite all the uses and many more, shea is amongst the endangeredspecies of trees because of over-utilization, low regeneration abilities andlack of efficient propagation methods. Consequently, this research seeks todetermine the most efficient methods for propagating V. paradoxa. The experimentconsists of threestages. In the first stage, complete fruits were planted without depulping; inthe second experiment, the seeds were exposed to single seed treatments that were applied to the seeds and in the third experiment, the seeds were exposed to double seed treatments. It was observed that intact fruits did not germinate while the results showed the single seeds treatment to significantly have affected germinationperformance. De-shelled seeds germinated faster (43 days) than all other treatments but 48 hours soaking produced the highestgermination percentage (91.7 ). Aneven better result was recorded with double seeds treatments in which de-shelled plus 24 hours soakedseed germinated faster (39.3 days) than other treatments while sandpapered plus24 hours soaked seeds had the best germination percentage (75 ). Therefore,scarification using sandpaper plus soaking for 24 hours was identified as thebest treatment for breaking seed dormancy in V. paradoxa.

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