Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique
Sweetpotato is a crucial crop to guarantee food security in sub-Saharan Africa, and drought events are considered one of the most critical factors affecting sweetpotato productivity in this region. In this study, airborne imagery based on reflectance (NDVI, CIred-edge) and canopy temperature minus a...
| Autores principales: | , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2023
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/115706 |
| _version_ | 1855539948070895616 |
|---|---|
| author | Ramírez, D. Grüneberg, W.J. Andrade, M.I. Boeck, B. de Loayza, H. Makunde, G.S. Ninanya, J. Rinza, J. Heck, S. Campos, Hugo |
| author_browse | Andrade, M.I. Boeck, B. de Campos, Hugo Grüneberg, W.J. Heck, S. Loayza, H. Makunde, G.S. Ninanya, J. Ramírez, D. Rinza, J. |
| author_facet | Ramírez, D. Grüneberg, W.J. Andrade, M.I. Boeck, B. de Loayza, H. Makunde, G.S. Ninanya, J. Rinza, J. Heck, S. Campos, Hugo |
| author_sort | Ramírez, D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sweetpotato is a crucial crop to guarantee food security in sub-Saharan Africa, and drought events are considered one of the most critical factors affecting sweetpotato productivity in this region. In this study, airborne imagery based on reflectance (NDVI, CIred-edge) and canopy temperature minus air temperature (dT) indices was used to characterize sweetpotato genotypes under drought treatments in Mozambique. Two field experiments established in rainy/hot (Trial A) and dry/cool (Trial B) seasons were assessed. In Trial A, 24 genotypes were subjected to early- (ESD), mid- (MSD) and late-season (LSD) drought stress treatments and compared against a control. In Trial B, 120 genotypes were subjected to LSD only. The percentage of reduction in vine weight (PRVW) under drought was related primarily to temporal variation of NDVI and CI, regardless of drought treatment and seasons. dT in relation to control (dTAmp) was associated with PRVW in ESD-Trial A and LSD-Trial B, whereas under LSD-Trial A, dTAmp was related to total fresh storage root weight (TRW). During the rainy/hot season, higher TRW reduction was promoted under ESD; however, under LSD, it was possible to identify productive genotypes able to withstand drought stress, highlighting their relevance for drought-tolerance selection purposes. |
| format | Journal Article |
| id | CGSpace115706 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1157062025-03-11T12:14:31Z Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique Ramírez, D. Grüneberg, W.J. Andrade, M.I. Boeck, B. de Loayza, H. Makunde, G.S. Ninanya, J. Rinza, J. Heck, S. Campos, Hugo phenotypes sweet potatoes drought stress infrared imagery food security genotypes Sweetpotato is a crucial crop to guarantee food security in sub-Saharan Africa, and drought events are considered one of the most critical factors affecting sweetpotato productivity in this region. In this study, airborne imagery based on reflectance (NDVI, CIred-edge) and canopy temperature minus air temperature (dT) indices was used to characterize sweetpotato genotypes under drought treatments in Mozambique. Two field experiments established in rainy/hot (Trial A) and dry/cool (Trial B) seasons were assessed. In Trial A, 24 genotypes were subjected to early- (ESD), mid- (MSD) and late-season (LSD) drought stress treatments and compared against a control. In Trial B, 120 genotypes were subjected to LSD only. The percentage of reduction in vine weight (PRVW) under drought was related primarily to temporal variation of NDVI and CI, regardless of drought treatment and seasons. dT in relation to control (dTAmp) was associated with PRVW in ESD-Trial A and LSD-Trial B, whereas under LSD-Trial A, dTAmp was related to total fresh storage root weight (TRW). During the rainy/hot season, higher TRW reduction was promoted under ESD; however, under LSD, it was possible to identify productive genotypes able to withstand drought stress, highlighting their relevance for drought-tolerance selection purposes. 2023-02 2021-10-26T22:35:48Z 2021-10-26T22:35:48Z Journal Article https://hdl.handle.net/10568/115706 en Open Access Wiley Ramírez, D. A., Grüneberg, W., Andrade, M., de Boeck, B., Loayza, H., Makunde, G., Ninanya, J., Rinza, J., Heck, S., & Campos, H. (2021). Phenotyping of productivity and resilience in sweetpotato under water stress through UAV‐based multispectral and thermal imagery in Mozambique. Journal of Agronomy and Crop Science. ISSN 1439-037X. 15 p. |
| spellingShingle | phenotypes sweet potatoes drought stress infrared imagery food security genotypes Ramírez, D. Grüneberg, W.J. Andrade, M.I. Boeck, B. de Loayza, H. Makunde, G.S. Ninanya, J. Rinza, J. Heck, S. Campos, Hugo Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title | Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title_full | Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title_fullStr | Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title_full_unstemmed | Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title_short | Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique |
| title_sort | phenotyping of productivity and resilience in sweetpotato under water stress through uav based multispectral and thermal imagery in mozambique |
| topic | phenotypes sweet potatoes drought stress infrared imagery food security genotypes |
| url | https://hdl.handle.net/10568/115706 |
| work_keys_str_mv | AT ramirezd phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT grunebergwj phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT andrademi phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT boeckbde phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT loayzah phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT makundegs phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT ninanyaj phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT rinzaj phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT hecks phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique AT camposhugo phenotypingofproductivityandresilienceinsweetpotatounderwaterstressthroughuavbasedmultispectralandthermalimageryinmozambique |