Gain and performance in yield and micronutrient concentration in common bean improvement
Common bean (Phaseolus vulgaris L.) is a staple and nutritious leguminous food crop for all income categories in Africa. Efforts to improve its yield performance and nutritional components, especially Iron and zinc have resulted in the release of several varieties in the sub-Saharan African region....
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
African Journals Online
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/125803 |
| _version_ | 1855532882624249856 |
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| author | Amongi, Winnyfred Kato, Fred Ssekamate, Allan Male Nakyanzi, Brenda Sebuliba, Sulaiman Kabwama, Andrew Mbiu, Julius Williams, Magdalena Baguma, Gerald Mukankusi, Clare |
| author_browse | Amongi, Winnyfred Baguma, Gerald Kabwama, Andrew Kato, Fred Mbiu, Julius Mukankusi, Clare Nakyanzi, Brenda Sebuliba, Sulaiman Ssekamate, Allan Male Williams, Magdalena |
| author_facet | Amongi, Winnyfred Kato, Fred Ssekamate, Allan Male Nakyanzi, Brenda Sebuliba, Sulaiman Kabwama, Andrew Mbiu, Julius Williams, Magdalena Baguma, Gerald Mukankusi, Clare |
| author_sort | Amongi, Winnyfred |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Common bean (Phaseolus vulgaris L.) is a staple and nutritious leguminous food crop for all income categories in Africa. Efforts to improve its yield performance and nutritional components, especially Iron and zinc have resulted in the release of several varieties in the sub-Saharan African region. The objective of this study was to assess genetic progress in varieties released in 12 African countries through the Pan African Bean Research Alliance (PABRA) from 1973 to 2017, to inform current breeding decisions. A total of 214 released varieties, land races and breeding lines, of bush and climbing beans were evaluated for yield, micronutrient (Fe and Zn) concentration, and phenology in three locations (Kawanda and Kachwekano in Uganda, and Kitengule in Tanzania) in 2017–2018. There were significant differences (P 0.01) among genotypes for all traits except days to maturity (DPM). Genotype x environment interaction was also significant (P<0.05) for all assessed traits, except for iron in climbing beans. Across environments, repeatability (H2) was greater than 0.50 for all traits, except for DPM in climbing beans. Annual rates of genetic yield gains were 4.41 and 4.57 kg ha-1 for large and small seed bush beans, and -2.74 and 21.6 kg ha-1 for large and small seeded climbers. Similarly, gains in seed iron (FESEED) were 0.40 and 0.17 ppm for bush and climbing beans, respectively. These represented an annual relative gain over the oldest varieties of 0.6 and 0.7% kg ha-1 for yield of large and small seeded bush beans, -0.3 and 1.6% kg ha-1 for yield of large and small seeded climbers, 0.6 and 0.2% ppm for FESEED of bush and climbers. Overall, genetic progress was slow for both yield and FESEED. |
| format | Journal Article |
| id | CGSpace125803 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | African Journals Online |
| publisherStr | African Journals Online |
| record_format | dspace |
| spelling | CGSpace1258032025-11-11T19:00:12Z Gain and performance in yield and micronutrient concentration in common bean improvement Amongi, Winnyfred Kato, Fred Ssekamate, Allan Male Nakyanzi, Brenda Sebuliba, Sulaiman Kabwama, Andrew Mbiu, Julius Williams, Magdalena Baguma, Gerald Mukankusi, Clare biofortification genetic gain zinc phaseolus vulgaris bioenriquecimiento mejora genética cinc-zinc Common bean (Phaseolus vulgaris L.) is a staple and nutritious leguminous food crop for all income categories in Africa. Efforts to improve its yield performance and nutritional components, especially Iron and zinc have resulted in the release of several varieties in the sub-Saharan African region. The objective of this study was to assess genetic progress in varieties released in 12 African countries through the Pan African Bean Research Alliance (PABRA) from 1973 to 2017, to inform current breeding decisions. A total of 214 released varieties, land races and breeding lines, of bush and climbing beans were evaluated for yield, micronutrient (Fe and Zn) concentration, and phenology in three locations (Kawanda and Kachwekano in Uganda, and Kitengule in Tanzania) in 2017–2018. There were significant differences (P 0.01) among genotypes for all traits except days to maturity (DPM). Genotype x environment interaction was also significant (P<0.05) for all assessed traits, except for iron in climbing beans. Across environments, repeatability (H2) was greater than 0.50 for all traits, except for DPM in climbing beans. Annual rates of genetic yield gains were 4.41 and 4.57 kg ha-1 for large and small seed bush beans, and -2.74 and 21.6 kg ha-1 for large and small seeded climbers. Similarly, gains in seed iron (FESEED) were 0.40 and 0.17 ppm for bush and climbing beans, respectively. These represented an annual relative gain over the oldest varieties of 0.6 and 0.7% kg ha-1 for yield of large and small seeded bush beans, -0.3 and 1.6% kg ha-1 for yield of large and small seeded climbers, 0.6 and 0.2% ppm for FESEED of bush and climbers. Overall, genetic progress was slow for both yield and FESEED. 2023-01 2022-12-06T14:49:17Z 2022-12-06T14:49:17Z Journal Article https://hdl.handle.net/10568/125803 en Open Access application/pdf African Journals Online Amongi, W.; Kato, F.; Male, A.; Nakyanzi, B.; Sebuliba, S.; Kabwama, A.; Mbiu, J.; Williams, M.; Baguma, G.; Mukankusi, C. (2023) Gain and performance in yield and micronutrient concentration in common bean improvement. African Crop Science Journal 31(1) p. 85-111 ISSN: 1021-9730 |
| spellingShingle | biofortification genetic gain zinc phaseolus vulgaris bioenriquecimiento mejora genética cinc-zinc Amongi, Winnyfred Kato, Fred Ssekamate, Allan Male Nakyanzi, Brenda Sebuliba, Sulaiman Kabwama, Andrew Mbiu, Julius Williams, Magdalena Baguma, Gerald Mukankusi, Clare Gain and performance in yield and micronutrient concentration in common bean improvement |
| title | Gain and performance in yield and micronutrient concentration in common bean improvement |
| title_full | Gain and performance in yield and micronutrient concentration in common bean improvement |
| title_fullStr | Gain and performance in yield and micronutrient concentration in common bean improvement |
| title_full_unstemmed | Gain and performance in yield and micronutrient concentration in common bean improvement |
| title_short | Gain and performance in yield and micronutrient concentration in common bean improvement |
| title_sort | gain and performance in yield and micronutrient concentration in common bean improvement |
| topic | biofortification genetic gain zinc phaseolus vulgaris bioenriquecimiento mejora genética cinc-zinc |
| url | https://hdl.handle.net/10568/125803 |
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