Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana
Bush yam (Dioscorea praehensilis Benth.) is an important food and cash crop species in some West and Central African countries. Unfortunately, several socioeconomic, cultural, nutritional, and agronomic constraints hinder its cultivation, and thus lead to its underutilization and gradual disappearan...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Elsevier
2021
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| Acceso en línea: | https://hdl.handle.net/10568/114405 |
| _version_ | 1855529245816651776 |
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| author | Adewumi, A.S. Asare, P.A. Adu, M.O. Taah, K.J. Akaba, S. Mondo, J. Agre, A.P. |
| author_browse | Adewumi, A.S. Adu, M.O. Agre, A.P. Akaba, S. Asare, P.A. Mondo, J. Taah, K.J. |
| author_facet | Adewumi, A.S. Asare, P.A. Adu, M.O. Taah, K.J. Akaba, S. Mondo, J. Agre, A.P. |
| author_sort | Adewumi, A.S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Bush yam (Dioscorea praehensilis Benth.) is an important food and cash crop species in some West and Central African countries. Unfortunately, several socioeconomic, cultural, nutritional, and agronomic constraints hinder its cultivation, and thus lead to its underutilization and gradual disappearance. To effectively promote its cultivation and utilization, knowledge of its diversity, distribution, management, and farmers’ varietal preferences is necessary. This study, therefore, used a participatory rural appraisal survey to assess such information in 23 villages from three regions of Ghana. A total of 42 D. praehensilis morphotypes were recorded and grouped in seven classes based on the tuber flesh colour. The Shannon diversity index (H’ = 1.88), equitability (0.65), and Margalef species richness (2.53) revealed the presence of moderate diversity and distribution in the surveyed regions. Farmers’ variety trait preferences included mainly the early maturity (21.1%), smooth tuber texture (16.5%), stability in tuber flesh colour (7.86%), good storage aptitude (7.6%), and high tuber productivity (12.8%). In contrast, D. praehensilis production and utilization rates have declined mainly due to poor culinary quality (39.9%) and poor agronomic traits (20.7%) of most morphotypes. Survey results showed that D. praehensilis is largely an in-situ conserved species in Ghana (60.0%). This study provided an insight on D. praehensilis diversity, distribution and farmers’ varietal preferences in Ghana which will guide its genetic resource conservation and plant breeding interventions. |
| format | Journal Article |
| id | CGSpace114405 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1144052025-11-11T10:33:06Z Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana Adewumi, A.S. Asare, P.A. Adu, M.O. Taah, K.J. Akaba, S. Mondo, J. Agre, A.P. dioscorea yams surveys ghana farmers genetic resources resource conservation participatory rural appraisal Bush yam (Dioscorea praehensilis Benth.) is an important food and cash crop species in some West and Central African countries. Unfortunately, several socioeconomic, cultural, nutritional, and agronomic constraints hinder its cultivation, and thus lead to its underutilization and gradual disappearance. To effectively promote its cultivation and utilization, knowledge of its diversity, distribution, management, and farmers’ varietal preferences is necessary. This study, therefore, used a participatory rural appraisal survey to assess such information in 23 villages from three regions of Ghana. A total of 42 D. praehensilis morphotypes were recorded and grouped in seven classes based on the tuber flesh colour. The Shannon diversity index (H’ = 1.88), equitability (0.65), and Margalef species richness (2.53) revealed the presence of moderate diversity and distribution in the surveyed regions. Farmers’ variety trait preferences included mainly the early maturity (21.1%), smooth tuber texture (16.5%), stability in tuber flesh colour (7.86%), good storage aptitude (7.6%), and high tuber productivity (12.8%). In contrast, D. praehensilis production and utilization rates have declined mainly due to poor culinary quality (39.9%) and poor agronomic traits (20.7%) of most morphotypes. Survey results showed that D. praehensilis is largely an in-situ conserved species in Ghana (60.0%). This study provided an insight on D. praehensilis diversity, distribution and farmers’ varietal preferences in Ghana which will guide its genetic resource conservation and plant breeding interventions. 2021-06-06 2021-07-27T09:51:35Z 2021-07-27T09:51:35Z Journal Article https://hdl.handle.net/10568/114405 en Open Access application/pdf Elsevier Adewumi, A.S., Asare, P.A., Adu, M.O., Taah, K.J., Akaba, S., Mondo, J.M. & Agre, P.A. (2021). Farmers’ perceptions on varietal diversity, trait preferences and diversity management of bush yam (Dioscorea praehensilis Benth.) in Ghana. Scientific African, 12, e00808: 1-14. |
| spellingShingle | dioscorea yams surveys ghana farmers genetic resources resource conservation participatory rural appraisal Adewumi, A.S. Asare, P.A. Adu, M.O. Taah, K.J. Akaba, S. Mondo, J. Agre, A.P. Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title | Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title_full | Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title_fullStr | Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title_full_unstemmed | Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title_short | Farmers' perceptions on varietal diversity, trait preferences and diversity management of bush yam ( Dioscorea praehensilis Benth.) in Ghana |
| title_sort | farmers perceptions on varietal diversity trait preferences and diversity management of bush yam dioscorea praehensilis benth in ghana |
| topic | dioscorea yams surveys ghana farmers genetic resources resource conservation participatory rural appraisal |
| url | https://hdl.handle.net/10568/114405 |
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