Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation
Sorghum is a crucial cereal crop, recognized for its resilience to arid and semiarid environments. However, drought stress significantly limits its productivity, emphasizing the need to enhance drought tolerance traits. One such trait is transpiration efficiency (TE), which reflects a plant’s abilit...
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
2025
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/176908 |
| _version_ | 1855514562924642304 |
|---|---|
| author | Mitiku, Abel Debebe Feyissa, Tileye Woldetensaye, Alemu Tirfessa Chikssa, Habte Nida Menamo, Temesgen Matiwos Abebe, Tewodros Mesfin Bante, Kassahun |
| author_browse | Abebe, Tewodros Mesfin Bante, Kassahun Chikssa, Habte Nida Feyissa, Tileye Menamo, Temesgen Matiwos Mitiku, Abel Debebe Woldetensaye, Alemu Tirfessa |
| author_facet | Mitiku, Abel Debebe Feyissa, Tileye Woldetensaye, Alemu Tirfessa Chikssa, Habte Nida Menamo, Temesgen Matiwos Abebe, Tewodros Mesfin Bante, Kassahun |
| author_sort | Mitiku, Abel Debebe |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sorghum is a crucial cereal crop, recognized for its resilience to arid and semiarid environments. However, drought stress significantly limits its productivity, emphasizing the need to enhance drought tolerance traits. One such trait is transpiration efficiency (TE), which reflects a plant’s ability to use water efficiently. This study tested a core collection of 182 Ethiopian sorghum accessions, representing major races for drought tolerance related traits. The accessions were grown in 16 l lysimeters under a rain-out shelter, employing a randomized complete block design with three replications. Our findings revealed significant genetic variation (p < 0.001) in TE and related traits among sorghum races. Durra races exhibited the highest TE (6–8.5 kg/L), while intermediate races (dura-caudatum, kafir-caudatum, dura-guinea) showed moderate. Conversely, kafir-caudatum, kafir-bicolor, guinea-bicolor, guinea-caudatum, dura-caudatum and bicolor exhibited the lowest TE. Strong correlations were found between TE and traits such as total shoot fresh weight, total shoot dry weight, and leaf number. Principal component analysis identified key traits influencing TE, while cluster analysis grouped accessions into four distinct clusters, with Cluster IV containing genotypes with the highest TE. These findings highlight the potential of TE in breeding water-efficient sorghum varieties and provide valuable genetic resources for enhancing drought tolerance. |
| format | Journal Article |
| id | CGSpace176908 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1769082025-11-11T17:40:26Z Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation Mitiku, Abel Debebe Feyissa, Tileye Woldetensaye, Alemu Tirfessa Chikssa, Habte Nida Menamo, Temesgen Matiwos Abebe, Tewodros Mesfin Bante, Kassahun sorghum drought resistance transpiration Sorghum is a crucial cereal crop, recognized for its resilience to arid and semiarid environments. However, drought stress significantly limits its productivity, emphasizing the need to enhance drought tolerance traits. One such trait is transpiration efficiency (TE), which reflects a plant’s ability to use water efficiently. This study tested a core collection of 182 Ethiopian sorghum accessions, representing major races for drought tolerance related traits. The accessions were grown in 16 l lysimeters under a rain-out shelter, employing a randomized complete block design with three replications. Our findings revealed significant genetic variation (p < 0.001) in TE and related traits among sorghum races. Durra races exhibited the highest TE (6–8.5 kg/L), while intermediate races (dura-caudatum, kafir-caudatum, dura-guinea) showed moderate. Conversely, kafir-caudatum, kafir-bicolor, guinea-bicolor, guinea-caudatum, dura-caudatum and bicolor exhibited the lowest TE. Strong correlations were found between TE and traits such as total shoot fresh weight, total shoot dry weight, and leaf number. Principal component analysis identified key traits influencing TE, while cluster analysis grouped accessions into four distinct clusters, with Cluster IV containing genotypes with the highest TE. These findings highlight the potential of TE in breeding water-efficient sorghum varieties and provide valuable genetic resources for enhancing drought tolerance. 2025-12-31 2025-10-09T11:25:31Z 2025-10-09T11:25:31Z Journal Article https://hdl.handle.net/10568/176908 en Open Access application/pdf Informa UK Limited Mitiku, A.D.; Feyissa, T.; Woldetensaye, A.T.; Chikssa, H.N.; Menamo, T.M.; Abebe, T.M.; Bante, K. (2025) Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation. Cogent Food & Agriculture 11(1): 2516768. ISSN: 2331-1932 |
| spellingShingle | sorghum drought resistance transpiration Mitiku, Abel Debebe Feyissa, Tileye Woldetensaye, Alemu Tirfessa Chikssa, Habte Nida Menamo, Temesgen Matiwos Abebe, Tewodros Mesfin Bante, Kassahun Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title | Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title_full | Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title_fullStr | Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title_full_unstemmed | Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title_short | Transpiration efficiency in the major races of Ethiopian sorghum: Unraveling genetic variation for drought adaptation |
| title_sort | transpiration efficiency in the major races of ethiopian sorghum unraveling genetic variation for drought adaptation |
| topic | sorghum drought resistance transpiration |
| url | https://hdl.handle.net/10568/176908 |
| work_keys_str_mv | AT mitikuabeldebebe transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT feyissatileye transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT woldetensayealemutirfessa transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT chikssahabtenida transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT menamotemesgenmatiwos transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT abebetewodrosmesfin transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation AT bantekassahun transpirationefficiencyinthemajorracesofethiopiansorghumunravelinggeneticvariationfordroughtadaptation |