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Root suckering of Vitex doniana Sweet in the Guinean savannah highlands of Adamawa in Cameroon

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Author Affiliations

  • 1Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, P.O Box : 454 Ngaoundéré, Cameroon
  • 2Department of Plant Sciences, Faculty of Sciences, The University of Bamenda, P.O. Box: 39 Bambili, Cameroon
  • 3Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, P.O Box : 454 Ngaoundéré, Cameroon
  • 4Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, P.O Box : 454 Ngaoundéré, Cameroon

Res. J. Agriculture & Forestry Sci., Volume 11, Issue (2), Pages 39-43, July,8 (2023)

Abstract

Vitex doniana Sweet is an agroforestry species highly prized by the populations of the high Guinean savannahs of Adamawa in Cameroon, but its sexual reproduction is weak under natural conditions. The objective of the study was to test the induction of artificial root suckering on the superficial roots of 129 adult Vitex doniana plants. The complete section and the slight wound were adopted. After induction, 120 roots were partially exposed to air and light, while the other 120 were covered with original soil, according to a three-replication split-plot experimental design. The results show that the cut roots lend themselves better to root suckering with a success rate of 60%; on the other hand, the stripped roots did not develop aerial axes. Roots left in the open had a 65% success rate, compared to 55% for roots covered with soil. The analysis of variance does not show any significant difference (0.3762 > 0.05) between suckers. Induced suckers appear exclusively at the distal end of the root separated from the parent tree. 70% of the suckers appeared on the superficial face, 21% at the basal roots and 9% on both faces at the same time. No sucker has developed its own root system. Induction of root suckering is an inexpensive propagation technique that could be constitute an important way to explore in order to domesticate Vitex doniana.

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