Phenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambique

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cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationInternational Potato Centeren_US
cg.contributor.crpRoots, Tubers and Bananasen_US
cg.contributor.donorBill & Melinda Gates Foundationen_US
cg.contributor.donorForeign, Commonwealth and Development Office, United Kingdomen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeAccelerated Breedingen_US
cg.coverage.countryMozambiqueen_US
cg.coverage.iso3166-alpha2MZen_US
cg.coverage.regionSub-Saharan Africaen_US
cg.coverage.regionEastern Africaen_US
cg.creator.identifierDavid Ramirez: 0000-0003-4546-9745en_US
cg.creator.identifierWolfgang Gruneberg: 0000-0002-8306-6704en_US
cg.creator.identifiermaria isabel andrade: 0000-0001-7510-3168en_US
cg.creator.identifierBert De Boeck: 0000-0001-5087-2622en_US
cg.creator.identifierHildo Loayza: 0000-0002-4145-5453en_US
cg.creator.identifierGodwill Makunde: 0000-0002-9003-7266en_US
cg.creator.identifierJohan Ninanya: 0000-0001-9499-2503en_US
cg.creator.identifierJavier Rinza Díaz: 0000-0001-9320-3146en_US
cg.creator.identifierSimon Heck: 0000-0001-9276-5227en_US
cg.creator.identifierHugo Campos: 0000-0003-0070-1336en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1111/jac.12565en_US
cg.isijournalISI Journalen_US
cg.issn1439-037Xen_US
cg.issue1en_US
cg.journalJournal of Agronomy and Crop Scienceen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.cipCLIMATE-SMART AGRICULTUREen_US
cg.subject.cipFOOD SECURITYen_US
cg.subject.cipFOOD SYSTEMSen_US
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen_US
cg.subject.cipSWEETPOTATOESen_US
cg.subject.cipSWEETPOTATO AGRI-FOOD SYSTEMSen_US
cg.volume209en_US
dc.contributor.authorRamírez, D.en_US
dc.contributor.authorGrüneberg, W.J.en_US
dc.contributor.authorAndrade, M.I.en_US
dc.contributor.authorBoeck, B. deen_US
dc.contributor.authorLoayza, H.en_US
dc.contributor.authorMakunde, G.S.en_US
dc.contributor.authorNinanya, J.en_US
dc.contributor.authorRinza, J.en_US
dc.contributor.authorHeck, S.en_US
dc.contributor.authorCampos, Hugoen_US
dc.date.accessioned2021-10-26T22:35:48Zen_US
dc.date.available2021-10-26T22:35:48Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/115706en_US
dc.titlePhenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambiqueen_US
dcterms.abstractSweetpotato 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.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceAcademicsen_US
dcterms.audienceCGIARen_US
dcterms.audienceDevelopment Practitionersen_US
dcterms.audienceDonorsen_US
dcterms.available2023-02en_US
dcterms.bibliographicCitationRamírez, 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.en_US
dcterms.extentp. 41-55en_US
dcterms.issued2023-02en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherWileyen_US
dcterms.subjectphenotypesen_US
dcterms.subjectsweet potatoesen_US
dcterms.subjectdrought stressen_US
dcterms.subjectinfrared imageryen_US
dcterms.subjectfood securityen_US
dcterms.subjectgenotypesen_US
dcterms.typeJournal Articleen_US

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