Author(s):
Tewodros Mulualem, Firew Mekbib, Shimelis Hussein, Endale Gebre
Email(s):
tewodrosmulualem@gmail.com
DOI:
10.5958/0975-4385.2020.00032.1
Address:
Tewodros Mulualem1,2*, Firew Mekbib2, Shimelis Hussein3, Endale Gebre4
1Jimma Agricultural Research Center, P.O. Box 192, Jimma, Ethiopia.
2Haramaya University, School of Plant Sciences, P.O. Box 138, Dire Dawa, Ethiopia.
3African Centre for Crop Improvement, School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa.
4Ethiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
*Corresponding Author
Published In:
Volume - 12,
Issue - 4,
Year - 2020
ABSTRACT:
Background and Objective: Understanding on-farm classification and rates of loses of crop genetic resources are crucial for breeding and conservation. The objective of this study was to assess farmers’ insight for classification, quantify the rate of landraces loss and identify major factor that causes of genetic erosion on yam in Southwest Ethiopia for conservation. Materials and Methods: A participatory rural appraisal study was conducted in 22 kebeles from seven districts of southwest Ethiopia. Data were collected from 240 yam growers using a semi-structured questionnaire, focus group and key informant discussions and field observations. Results: farmers’ classification system on yam varied and depends on the domestication status, sex type, used value and maturity. The rate of genetic erosion at district and kebele levels varied from 28.80% in Yeki to 57.93% in Kersa districts and 0% in Gubea muleta to 25% in Mehal sheko kebeles with an average rate of 44.48% and 14.1%, respectively. Number of farmers growing landraces decreased drastically in all surveyed districts in the past decades. Low attention given to the crop (95%), drought (93%), porcupine attack (90%), shortage of farm land (74%) and dilution of the crops by improved technologies (72%) were the prominent factors for ending landrace cultivation. Moreover, farmers’ preference for yield potential and cash crops subsequently reduced the chance of maintaining landraces. To conserve the landraces at district/kebele level, 30.2%, 52.6% and 15.2% of respondents mentioned provide training on the value, use, production of yams; genetic enrichment between district/kebele and collect landraces from different markets, respectively. The remaining 2.0% of the farmers had no suggestion for conservation of yams. Conclusion: Yam variety development programs should discourse the farmers classification system and identified factors for erosion for breeding and conservation in Southwest Ethiopia.
Cite this article:
Tewodros Mulualem, Firew Mekbib, Shimelis Hussein, Endale Gebre. Farmers’ perception for classification and genetic erosion of yams landraces in Ethiopia: Implications for Breeding and Conservation. Res. J. Pharmacognosy and Phytochem. 2020; 12(4):187-198. doi: 10.5958/0975-4385.2020.00032.1
Cite(Electronic):
Tewodros Mulualem, Firew Mekbib, Shimelis Hussein, Endale Gebre. Farmers’ perception for classification and genetic erosion of yams landraces in Ethiopia: Implications for Breeding and Conservation. Res. J. Pharmacognosy and Phytochem. 2020; 12(4):187-198. doi: 10.5958/0975-4385.2020.00032.1 Available on: https://rjpponline.org/AbstractView.aspx?PID=2020-12-4-1
REFERENCES:
1. Abebe, W., Demissew, S., Fay, R., Smith, J, Nordal, I. and Wilkin, P. 2013. Genetic diversity and species delimitation in the cultivated and wild Guinea yams (Dioscorea spp.) from Southwest Ethiopia as determined by AFLP (amplified fragment length polymorphism) markers. Genetic Resource and Crop Evolution, 60:1365–1375.
2. Addis, T. 2005. Biology of enset root mealy bug (Cataenococcus ensete) Williams and matile-ferrero (Homoptera: pseudococcidae) and its geographical distribution in southern Ethiopia.M.Sc. Thesis, Haramaya University, Ethiopia.
3. Alexander, J. and Coursey, D.J .1969. The origin of yam cultivation. In: Ucko and Dimbleby GH (eds.) The domestication and exploitation of plants and animals. Proceedings of meetings of the research seminar in Archeology and related subjects held at institute of Archeology, London University, Gerald Duckworth and Co. Ltd. UK, pp. 400-429.
4. Arunachalam, V. 1999. Conservation, genetic erosion and early warning system: key issues. Proceedings of the technical meeting on the methodology of the FAO World Information and early warning system on plant genetic resources, held at the Research Institute of Crop Production, Prague, Czech Republic, pp.12-19.
5. Asiedu, R. and Alieu, S. 2010. Crops that feed the world I. Yams, Journal of food Science, 2:305-315.
6. Brush, S.B. and Meng, E. 1998. Farmers’ evaluation and conservation of crop genetic resources. Genetic Resource and Crop Evolution, 45(2):139-150.
7. Brush, S.B. 2004.Farmers’ Bounty: locating crop diversity in the cotemporary world. Yale University Press, New Haven, USA.
8. Brush, S.B. 1981. Dynamics of Andean potato agriculture. Economic Botany, pp 35:70–88.
9. Cebolla, J, Cornejo, S. and Soler, F. 2007. Genetic erosion of traditional varieties of vegetable crops in Europe: tomato cultivation in Valencia (Spain) as a case study, International Journal of Plant Production, 1(2):113-128.
10. Charles, F.H. and Weiss, E. 1999. Remote sensing contribution to an early warning system for genetic erosion of agricultural crops. Proceedings of the technical meeting on the methodology of the FAO World information and early warning system on plant genetic resources, held at the Research Institute of Crop Production, Prague, Czech Republic, pp. 21–23.
11. Dansi, A, Adoukonou, H. and Vodouhé, R. 2010. Diversity, conservation and related wild species of Fonio millet in the Northwest of Benin. Genetic Resources and Crop Evolution, 57:827-839.
12. Dansi, A, Dantsey, B. and Vodouhè, R. 2013a. Production constraints and farmers’ cultivar preference criteria of cultivated yams (Dioscorea cayenensis Dioscorea rotundata complex) in Togo. International Journal of Biology, 4:191-199.
13. Dansi A., Dantsey, BH., Dossou, AI., N'Kpenu, E K., Agré AP., Sunu YD., Kombaté K., Loko, YL., Dansi M., Assogba, P. and Vodouhè. R. 2013b.Varietal diversity and genetic erosion of cultivated yams (Dioscorea cayenensis Poir - D. rotundata Lam complex and D. alata L.) in Togo. International Journal of biodiversity and conservation, 5(4): 223-239.
14. Demissew, S., Norda, I. and Stabbetorp, P.O.E. 2003. Flowers of Ethiopia and Eritrea: Aloes and other Lilies, 1st edn. Shama Books. Addis Ababa, Ethiopia.
15. Demuyakor, B, Dukrog, T.M. and Chikpah, S.K. 2013.Yam germplasm in Ghana. A survey on varietal identification and characterization of D. rotundata- alata in Northern region of Ghana. International Journal of Agronomy and Plant Production, 4(4):719-726.
16. Diehl, L. 1982. Smallholder farming systems with yam in the southern Guinea Savannah of Nigeria. German Agency for Technical Cooperation (GTZ), Germeny.
17. Edwards, S.B. 1991. Crops with wild relatives found in Ethiopia. In: Engles JMM, Hawkes JG.and Worede M. (eds) Plant Genetic resources of Ethiopia. Cambridge University Press Ltd., London, UK.
18. FAO. 2012. FAOSTAT database. Food and Agriculture Organization, Roma, Italy.
19. Friis, H.E. and Guarino, L. 1995. Collecting plant genetic resources and documenting associated indigenous knowledge in the field as a participatory approach, 345-367.
20. Gao, L, Li, D, Wu, X, Chen, W, Huang, Z. and Wei, X. 2012. In situ conservation of wild rice populations: A targeted study of common wild rice Oryza rufipog on from China, American Journal of Plant Sciences, 3:854-868.
21. Gizachew, W. 2000. Variation in enset wilt pathogen (Xanthomonas campestries Pv. musacerum) and reaction of Enset (Ensetea ventricosum (Welw) Chessman) clones to this disease. M.Sc. Thesis, Haramaya University, Ethiopia.
22. Hammer, K. and Laghetti, G. 2005. Genetic erosion examples from Italy. Genetic Resources and Crop Evolution, 52:629–634.
23. Hildebrand, E, Demissew, S and Wilkin, P. 2002. Local and regional landrace disappearance in species of yams (Dioscorea spp.) in Southwest Ethiopia. Proceeding of the 7thinternational congress of ethno- biology, University of Georgia press, pp. 678-695.
24. Hildebrand, E.A. 2003. Motives and opportunities for domestication: an ethno- Archaeological study in Southwest Ethiopia. Journal of Anthropological Archeology, 22:358-369.
25. IBM , 2012. IBM SPSS Statistics for Windows, Version 21. 0. Armonk, NY: IBM Corp. New York, USA.
26. Jianzhang, M, and Kun, C. 2012. Research and practice on biodiversity in situ conservation in China: progress and prospect. Biodiversity Sciences, 20(5):551-558.
27. Ketema, S. 1997. Tef. [Eragrostis tef (Zucc.) Trotter]. Promoting the conservation and use of underutilized and neglected crops. 12., Rome, Italy, Institute of Plant Genetics and Crop Plant Research, Gatersleben /International Plant Genetic Resources Institute.
28. Kombo, G, Dansi A, Loko, L.Y, Orkwor, G. and Vodouhè, R. 2012. Diversity of cassava (Manihot esculenta Crantz) cultivars and its management in the department of Bouenza in the Republic of Congo. Genetic Resources and Crop Evolution, 23:18-32.
29. Likert, R. A. 1932. Technique for the measurement of attitudes. Arch Psychology, 22(140):55-57.
30. Loko, L.Y, Dansi, A, Linsoussi, C, Vodouhè, R, Akoegninou, A. and Sanni, A. 2013. Current status and spatial analysis of Guinea yam (Dioscorea cayenensis Lam. Dioscorea rotundata Poir. complex) diversity in Benin. Genetic Resources and Crop evolution, 5(4): 223-239.
31. Loko, Y.L, Adjatin, A, Dansi, A, Vodouhe, R. and Sanni, A. 2015. Participatory evaluation of Guinea yam (Dioscorea cayenensis Lam. D. rotundata Poir. complex) landraces from Benin and agro-morphological characterization of cultivars tolerant to drought, high soil moisture and chips storage insects. Genet Resource Crop Evol., 62:1181–1192.
32. Magule, T, Tesfaye, B, Marcello, C. and Mario, E. 2014.Indigenous knowledge, use and on-farm management of enset [Ensete ventricosum (Welw.) Cheesman] diversity in Wolyita, Southern Ethiopia. Journal of Ethno biology and Ethno medicine,10(41):1-18.
33. Manyong, V.M and Nokea, S.K. 2003.Modelling of yam production for effective policy formulation. In: proceedings of the 8thtriennial symposium of the international Society for tropical root crops Africa branch (ISTRC-AB), Edited by M.O Akoroda, Ibadan, Nigeria.
34. Mark, van de, W, Chris, K, Theo van, H, Rob van.T. and Bert. V. 2009. Genetic erosion in crops: concept, research results and challenges. Plant Genetic Resources: Characterization and Utilization, 8(1);1–15.
35. Mashilo, J, Shimelis, H. and Odindo, A. 2015.Genetic diversity of bottle gourd (Lagenaria siceraria (Molina) Standl.) landraces of South Africa assessed by morphological traits and simple sequence repeat markers. South African Journal of Plant and Soil, 1–12.
36. Megersa, G. 2014. Genetic erosion of barley in North shewa zone of Oromiya region of Ethiopia. International Journal of Biodiversity and Conservation, 6(3):280-289.
37. Mekbib, F. 2007. Intra-specific folk taxonomy in sorghum (Sorghum bicolor (L.) Moench) in Ethiopia: folk nomenclature, classification, and criteria. Journal of Ethno-biology and Ethno-medicine, 3(38):1-18.
38. Miege, J. and Demissew, S. 1997. Dioscoreaca. In: Edwards S, Demissew S, Hedberg I (eds.) Flora of Ethiopia and Eriteria, Vol 6, Hydrocharitance to Aracea. The national herbarium, Addis Ababa, Ethiopia/Department of systematic botany, Uppsala, Sweden, pp.55-62.
39. Mignouna, H.D., Dansi, A. and Zok, S. 2002. Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis /Dioscorea rotundata complex) of Cameroon. Genetic Resources and Crop Evolution, 49:21-29.
40. Minitab.2010. Minitab Statistical Software Packages Version 16, Minitab Inc. USA.
41. Mulualem, T., 2016. Genetic diversity, path coefficient analysis, classification and evaluation of yams (Dioscorea spp.) in southwest Ethiopia. Ph.D. Thesis, Haramaya University. Ethiopia
42. Olweny, C, Ongala, J, Dida, M. and Okori, P. 2013. Farmers’ perception on sweet sorghum (Sorghum bicolar (L) Moench) and potential of its utilization in Kenya, World Science Research Journals, pp. 65-75.
43. Onwueme, I.C. and Charles, W.B. 1994. Tropical root crops: yams, cassava, sweet potato and coco yams. Jhon Wiley and Sons LTD., Chichester, USA, pp. 243.
44. SAS Institute. 2000. Statistical Analytical Systems SAS / STAT user’s guide version 8(2) cary NC: SAS institute inc.
45. Scarcelli, N, Tostain, S, Mariac, C, Agbangla, C, Dainou, O, Berthaud, J. and Pham, J.L. 2011. Genetic nature of yams (Dioscorea sp.) domesticated by farmers in Benin (West Africa). Genetic Resources and Crop Evolution, 53 (1):121-130.
46. Sesay, L, Norman, P.E, Massaquoi, A, Gboku, M.L. and Fomba, S.N. 2013. Assessment of farmers’ indigenous knowledge and selection criteria of yam in Sierra Leone. Sky Journal of Agricultural Research, 2(1):1–6
47. Siqueira, M.V, Nascimento, W, Gomes, L.R, Ferreira, A.B, Silva, E, Ming, L.C. and Veasey, E.A. 2014. Distribution, management and diversity of yam local varieties in Brazil: a study on Dioscorea alata L. Braz J. Biol, 74.
48. Tamiru, M., Becker, H.C. and Maas, B.L. 2011.Diversity, distribution and management of yam landraces in Southern Ethiopia. Genetic Resource and Crop Evolution, 55:115–131.
49. Tsegaye, A. 2002. On indigenous production, genetic diversity and crop ecology of enset (Enset ventricosum (Welw) Cheesman). Ph.D. Thesis, Wageningen University, The Netherlands.
50. Tsegaye, B and Berg, T. 2007. Genetic erosion of Ethiopian tetraploid wheat landraces in Eastern shewa, central Ethiopia. Genetic Resources and Crop evolution, 54:715–726.
51. UNCED .1992. Convention of Biological Diversity. UN, New York, USA.
52. Vavilov, N.I. 1951. The origin, variation, immunity and breeding of cultivated plants. Chronica Botanica Company, Waltham, Massachusetts, U.S.A.
53. Worede, M. 1997. Ethiopian in-situ conservation. In: Maxted, N., Ford-Lloyd, B.V. and Hawkes, J.G. (eds), Plant genetic conservation: The in situ approach. Chapman and Hall, London, UK.
54. Yifru, T. and Karl, H. 2006. Farmers’ perception and genetic erosion of tetraploid wheat landraces in Ethiopia. Genetic Resource and Crop Evolution, 53:1099-1113.
55. Zimmerer, K.S. 1992. The loss and maintenance of native crops in mountain agriculture. Geo journal, 27(1):61–72.