Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda
The American yam bean (Pachyrhizus spp.) is a legume crop that is exclusively used for its storage roots. The seeds are inedible due to presence of toxic rotenone. It produces high storage root yields comparable of major root crops like cassava or sweetpotato. And flower pruning more than doubles it...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Canadian Center of Science and Education
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/105991 |
| _version_ | 1855543101373808640 |
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| author | Andiku, C. Tukamuhabwe, Phineas Ssebuliba, J.M. Talwana, Herbert A.L. Tumwegamire, Silver Grüneberg, W.J. |
| author_browse | Andiku, C. Grüneberg, W.J. Ssebuliba, J.M. Talwana, Herbert A.L. Tukamuhabwe, Phineas Tumwegamire, Silver |
| author_facet | Andiku, C. Tukamuhabwe, Phineas Ssebuliba, J.M. Talwana, Herbert A.L. Tumwegamire, Silver Grüneberg, W.J. |
| author_sort | Andiku, C. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The American yam bean (Pachyrhizus spp.) is a legume crop that is exclusively used for its storage roots. The seeds are inedible due to presence of toxic rotenone. It produces high storage root yields comparable of major root crops like cassava or sweetpotato. And flower pruning more than doubles its root yield performance. Using twenty five yam bean accessions, the current study aimed to determine root yield stability and adaptability, and presence of yam bean production mega environments in Uganda. Trials were planted at three stations, Namulonge, Serere, and Kachwekano during two consecutive seasons of 2011. Fresh storage root yields were significantly different (p < 0.05) across locations with the ideal location being Namulonge (fresh storage root yield of 10.1 t ha-1), followed by Serere (8.0 t ha-1), and Kachwekano (3.1 t ha-1). Results of AMMI analysis indicated the presence of genotype-by-environment interaction for fresh storage root yield. Through AMMI estimates and GGE visual assessment, genotype 209017 was the highest yielding with mean yield of 20.7 t ha-1. Genotype 209018 with mean yield of 15.5 t ha-1 was the most stable and adapted accession in the entire discriminating environment in Uganda. From the environmental focusing plot, the six environments were grouped into two putative mega environments for yam bean production. |
| format | Journal Article |
| id | CGSpace105991 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Canadian Center of Science and Education |
| publisherStr | Canadian Center of Science and Education |
| record_format | dspace |
| spelling | CGSpace1059912025-11-11T11:07:59Z Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda Andiku, C. Tukamuhabwe, Phineas Ssebuliba, J.M. Talwana, Herbert A.L. Tumwegamire, Silver Grüneberg, W.J. pachyrhizus legumes yields stability uganda adaptability yam bean The American yam bean (Pachyrhizus spp.) is a legume crop that is exclusively used for its storage roots. The seeds are inedible due to presence of toxic rotenone. It produces high storage root yields comparable of major root crops like cassava or sweetpotato. And flower pruning more than doubles its root yield performance. Using twenty five yam bean accessions, the current study aimed to determine root yield stability and adaptability, and presence of yam bean production mega environments in Uganda. Trials were planted at three stations, Namulonge, Serere, and Kachwekano during two consecutive seasons of 2011. Fresh storage root yields were significantly different (p < 0.05) across locations with the ideal location being Namulonge (fresh storage root yield of 10.1 t ha-1), followed by Serere (8.0 t ha-1), and Kachwekano (3.1 t ha-1). Results of AMMI analysis indicated the presence of genotype-by-environment interaction for fresh storage root yield. Through AMMI estimates and GGE visual assessment, genotype 209017 was the highest yielding with mean yield of 20.7 t ha-1. Genotype 209018 with mean yield of 15.5 t ha-1 was the most stable and adapted accession in the entire discriminating environment in Uganda. From the environmental focusing plot, the six environments were grouped into two putative mega environments for yam bean production. 2019 2019-12-03T07:30:27Z 2019-12-03T07:30:27Z Journal Article https://hdl.handle.net/10568/105991 en Open Access application/pdf Canadian Center of Science and Education Andiku, C., Tukamuhabwa, P., Ssebuliba, J.M., Talwana, H., Tumwegamire, S. & Gruneberg, W.J. (2019). Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda. Journal of Agricultural Science, 11(8), 100-112. |
| spellingShingle | pachyrhizus legumes yields stability uganda adaptability yam bean Andiku, C. Tukamuhabwe, Phineas Ssebuliba, J.M. Talwana, Herbert A.L. Tumwegamire, Silver Grüneberg, W.J. Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title | Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title_full | Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title_fullStr | Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title_full_unstemmed | Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title_short | Evaluation of the American yam bean (Pachyrhizus spp.) for storage root yield across varying eco-geographic conditions in Uganda |
| title_sort | evaluation of the american yam bean pachyrhizus spp for storage root yield across varying eco geographic conditions in uganda |
| topic | pachyrhizus legumes yields stability uganda adaptability yam bean |
| url | https://hdl.handle.net/10568/105991 |
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