ethnobotanical and propagation of some endangered medicinal plants from nandi south district l.
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ETHNOBOTANICAL AND PROPAGATION OF SOME ENDANGERED MEDICINAL PLANTS FROM NANDI SOUTH DISTRICT. Jeruto Pascaline *, Mutai Charles^ and Ouma George*^

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ethnobotanical and propagation of some endangered medicinal plants from nandi south district

ETHNOBOTANICAL AND PROPAGATION OF SOME ENDANGERED MEDICINAL PLANTS FROM NANDI SOUTH DISTRICT

Jeruto Pascaline *, Mutai Charles^ and Ouma George*^

*Kenya Plant Health Inspectorate Service (KEPHIS), P.O Box 249 Kitale, Kenya; ^Center for Traditional Medicine and Drug Research, Kenya Medical Research Institute, P.O. Box 54840-00200, Nairobi, Kenya; *^Department of Botany and Horticulture,Maseno University, P.O. Box 333, Maseno, Kenya

background
BACKGROUND
  • Plants useful - food, shelter, clothing, fuel, medicine, crafts, cosmetics, income & employment (Balick,1996;Karori, 2003; Olembo,1995;Kokwaro,1976 &1993).
  • Herbal products- spices, tisane, medicinal raw materials, aromatics plants, functional food ingredients, essential oils, flavourings, fragrance products, dietary supplements and ecological balance (Kokwaro, 1976; UNEP, 1993).
  • Herbal products recognized- scientific knowledge (Rukangira,2001).
  • 80-90% Africa population(WHO,1979;Karori,2003).
  • Increased demand both locally and internationally - High population, poverty (rural and urban), increased awareness, high cost of modern medicine, limited access to trained doctors, food scarcity (dry and famine seasons).
introduction
Introduction…

SOUTH NANDI DISTRICT.

  • high human population
  • High demand for herbal products
  • Over harvesting- reduces the inventory / diversity
  • Deforestation (Biketi, 1989 and 2000).
objectives
Objectives
  • To document indigenous knowledge of medicinal plants in South Nandi district.
  • To identify propagation methods for the endangered medicinal plants.
results
RESULTS
  • 152 medicinal plants identified belonging to 57 families.
  • Diseases frequently treated- respiratory (24%), gastrointestinal (22%), skin ailments (18%), other infections (16%).
  • Habit of mostly used herbal plants are herbs & shrubs (69%) tree (20%) and liana (11%).
  • Plant parts frequently used – roots 38% and leaves (32%)
  • Majority of the practitioners are women (60%).
discussion
Discussion
  • Compositae and Labiatae were the most commonly used medicinal plants –they are also the most diverse plant families.
  • Low no. of trees & lianas is due to high deforestation and overgrazing hence high no. of shrubs and herbs.
  • The predominant usage of roots in drug preparation (25%) is detrimental to the plants and may lead to loss of wild resources.
  • Record of new medicinal uses for Datura stramonium to treatmadness, Ehretia cymosia & Conyza subscaposa shows that such surveys add value to science.
  • Drug preparation by concoction & decoction were most frequently used- best in extracting the active compounds.
  • Some compounds were active in vitro, suggesting they mayexhibit activity in vivo.
discussion8
Discussion…
  • Auxins promote rooting systems of 3 medicinal plants
  • 3 species have different ranges of effective auxin concentration.
  • M2 & M3 have broader ranges than M1 (0-200ppm)
conclusions
Conclusions
  • 152 medicinal species were identified. New medicinal uses reinforces importance of such surveys.
  • Plants reported in ethno studies should be tested broadly as this may bring new data from bioassays that were not registered in traditional folklore.
  • Plants conservation strategies should involve their propagation on farm e.g. these studies show that it is possible to root stem cuttings of Toddalia asiatica, Carissa edulis & Asystasia schimperi using auxins. Stem cutting was the technique best suited for propagation of Asystasia.
  • Non-mist polypropagator –used for propagation; promotes good rooting /constructed from available & cheap materials
acknowledgment
Acknowledgment
  • People of Nandi for sharing the indigenous knowledge.
  • Co-authors for teamwork in writing the paper.
  • Staff – NMK, UoN, Maseno University.