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
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorBill & Melinda Gates Foundationen
cg.contributor.donorForeign, Commonwealth and Development Office, United Kingdomen
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeAccelerated Breeding
cg.coverage.countryMozambique
cg.coverage.iso3166-alpha2MZ
cg.coverage.regionSub-Saharan Africa
cg.coverage.regionEastern Africa
cg.creator.identifierDavid Ramirez: 0000-0003-4546-9745en
cg.creator.identifierWolfgang Gruneberg: 0000-0002-8306-6704en
cg.creator.identifiermaria isabel andrade: 0000-0001-7510-3168en
cg.creator.identifierBert De Boeck: 0000-0001-5087-2622en
cg.creator.identifierHildo Loayza: 0000-0002-4145-5453en
cg.creator.identifierGodwill Makunde: 0000-0002-9003-7266en
cg.creator.identifierJohan Ninanya: 0000-0001-9499-2503en
cg.creator.identifierJavier Rinza Díaz: 0000-0001-9320-3146en
cg.creator.identifierSimon Heck: 0000-0001-9276-5227en
cg.creator.identifierHugo Campos: 0000-0003-0070-1336en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1111/jac.12565en
cg.isijournalISI Journalen
cg.issn1439-037Xen
cg.issue1en
cg.journalJournal of Agronomy and Crop Scienceen
cg.reviewStatusPeer Reviewen
cg.subject.cipCLIMATE-SMART AGRICULTUREen
cg.subject.cipFOOD SECURITYen
cg.subject.cipFOOD SYSTEMSen
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen
cg.subject.cipSWEETPOTATOESen
cg.subject.cipSWEETPOTATO AGRI-FOOD SYSTEMSen
cg.volume209en
dc.contributor.authorRamírez, D.en
dc.contributor.authorGrüneberg, W.J.en
dc.contributor.authorAndrade, M.I.en
dc.contributor.authorBoeck, B. deen
dc.contributor.authorLoayza, H.en
dc.contributor.authorMakunde, G.S.en
dc.contributor.authorNinanya, J.en
dc.contributor.authorRinza, J.en
dc.contributor.authorHeck, S.en
dc.contributor.authorCampos, Hugoen
dc.date.accessioned2021-10-26T22:35:48Zen
dc.date.available2021-10-26T22:35:48Zen
dc.identifier.urihttps://hdl.handle.net/10568/115706
dc.titlePhenotyping of productivity and resilience in sweetpotato under water stress through UAV-based multispectral and thermal imagery in Mozambiqueen
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
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.available2023-02en
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
dcterms.extentp. 41-55en
dcterms.issued2023-02en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherWileyen
dcterms.subjectphenotypesen
dcterms.subjectsweet potatoesen
dcterms.subjectdrought stressen
dcterms.subjectinfrared imageryen
dcterms.subjectfood securityen
dcterms.subjectgenotypesen
dcterms.typeJournal Article

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