Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands
Banana (Musa spp.), a perennial (sub-)tropical crop, suffers from seasonal droughts, which are typical of rain-fed agriculture. This study aimed at understanding the effect of seasonal drought on early growth, flowering and yield traits in bananas grown in the East African highlands. A field experim...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2021
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/111018 |
| _version_ | 1855514157438205952 |
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| author | Uwimana, Brigitte Zorrilla-Fontanesi, Yasmín Wesemael, Jelle van Mduma, Hassan Brown, Allan Carpentier, Sebastien C. Swennen, Rony L. |
| author_browse | Brown, Allan Carpentier, Sebastien C. Mduma, Hassan Swennen, Rony L. Uwimana, Brigitte Wesemael, Jelle van Zorrilla-Fontanesi, Yasmín |
| author_facet | Uwimana, Brigitte Zorrilla-Fontanesi, Yasmín Wesemael, Jelle van Mduma, Hassan Brown, Allan Carpentier, Sebastien C. Swennen, Rony L. |
| author_sort | Uwimana, Brigitte |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Banana (Musa spp.), a perennial (sub-)tropical crop, suffers from seasonal droughts, which are typical of rain-fed agriculture. This study aimed at understanding the effect of seasonal drought on early growth, flowering and yield traits in bananas grown in the East African highlands. A field experiment was set up in North Tanzania using four genotypes from different geographical origins and two different ploidy levels. The treatments considered were exclusively rain-fed versus rain supplemented with irrigation. Growth in plant girth and leaf area were promising traits to detect the early effect of water deficit. Seasonal drought slowed down vegetative growth, thus significantly decreasing plant girth, plant height and the number of suckers produced when compared to irrigated plants. It also delayed flowering time and bunch maturity and had a negative effect on yield traits. However, the results depended on the genotype and crop cycle and their interaction with the treatments. “Nakitengwa”, an East African highland banana (EAHB; AAA genome group), which is adapted to the region, showed sensitivity to drought in terms of reduced bunch weight and expected yield, while “Cachaco” (ABB genome group) showed less sensitivity to drought but had a poorer yield than “Nakitengwa”. Our study confirms that seasonal drought has a negative impact on banana production in East Africa, where EAHBs are the most predominant type of bananas grown in the region. We also show that a drought-tolerant cultivar not adapted to the East African highlands had a low performance in terms of yield. We recommend a large-scale screening of diploid bananas to identify drought-tolerant genotypes to be used in the improvement of locally adapted and accepted varieties. |
| format | Journal Article |
| id | CGSpace111018 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1110182025-11-13T10:38:14Z Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands Uwimana, Brigitte Zorrilla-Fontanesi, Yasmín Wesemael, Jelle van Mduma, Hassan Brown, Allan Carpentier, Sebastien C. Swennen, Rony L. agronomic characters bananas drought seasonality características agronómicas sequía estacionalidad Banana (Musa spp.), a perennial (sub-)tropical crop, suffers from seasonal droughts, which are typical of rain-fed agriculture. This study aimed at understanding the effect of seasonal drought on early growth, flowering and yield traits in bananas grown in the East African highlands. A field experiment was set up in North Tanzania using four genotypes from different geographical origins and two different ploidy levels. The treatments considered were exclusively rain-fed versus rain supplemented with irrigation. Growth in plant girth and leaf area were promising traits to detect the early effect of water deficit. Seasonal drought slowed down vegetative growth, thus significantly decreasing plant girth, plant height and the number of suckers produced when compared to irrigated plants. It also delayed flowering time and bunch maturity and had a negative effect on yield traits. However, the results depended on the genotype and crop cycle and their interaction with the treatments. “Nakitengwa”, an East African highland banana (EAHB; AAA genome group), which is adapted to the region, showed sensitivity to drought in terms of reduced bunch weight and expected yield, while “Cachaco” (ABB genome group) showed less sensitivity to drought but had a poorer yield than “Nakitengwa”. Our study confirms that seasonal drought has a negative impact on banana production in East Africa, where EAHBs are the most predominant type of bananas grown in the region. We also show that a drought-tolerant cultivar not adapted to the East African highlands had a low performance in terms of yield. We recommend a large-scale screening of diploid bananas to identify drought-tolerant genotypes to be used in the improvement of locally adapted and accepted varieties. 2021-01 2021-01-28T08:10:37Z 2021-01-28T08:10:37Z Journal Article https://hdl.handle.net/10568/111018 en Open Access application/pdf MDPI Uwimana, B.; Zorrilla-Fontanesi, Y.; van Wesemael, J.; Mduma, H.; Brown, A.; Carpentier, S.; Swennen, R. (2021) Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands. Agronomy, 11(1): 4. ISSN:2073-4395. |
| spellingShingle | agronomic characters bananas drought seasonality características agronómicas sequía estacionalidad Uwimana, Brigitte Zorrilla-Fontanesi, Yasmín Wesemael, Jelle van Mduma, Hassan Brown, Allan Carpentier, Sebastien C. Swennen, Rony L. Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title | Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title_full | Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title_fullStr | Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title_full_unstemmed | Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title_short | Effect of seasonal drought on the agronomic performance of four banana genotypes (Musa spp.) in the East African highlands |
| title_sort | effect of seasonal drought on the agronomic performance of four banana genotypes musa spp in the east african highlands |
| topic | agronomic characters bananas drought seasonality características agronómicas sequía estacionalidad |
| url | https://hdl.handle.net/10568/111018 |
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