Harvest index is a key trait for screening drought-tolerant potato genotypes (Solanum tuberosum)

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationUniversidad Nacional Agraria, Peruen_US
cg.contributor.affiliationInternational Potato Centeren_US
cg.contributor.affiliationInstituto Nacional de Innovación Agraria, Peruen_US
cg.contributor.affiliationCornell Universityen_US
cg.contributor.donorFederal Ministry for Economic Cooperation and Development, Germanyen_US
cg.contributor.donorDeutsche Gesellschaft für Internationale Zusammenarbeiten_US
cg.creator.identifierFlavio Lozano-Isla: 0000-0002-0714-669Xen_US
cg.creator.identifierEvelyn Roxana Farfan Vignolo: 0000-0002-8258-3902en_US
cg.creator.identifierRaymundo O. Gutierrez-Rosales: 0000-0002-9238-5328en_US
cg.creator.identifierRaul Blas: 0000-0003-3378-4035en_US
cg.creator.identifierAwais Khan: 0000-0002-0424-7727en_US
cg.howPublishedFormally Publisheden_US
cg.isijournalISI Journalen_US
cg.journalJournal of Crop Science and Biotechnologyen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaGenetic Innovationen_US
cg.subject.cipPOTATOESen_US
cg.subject.cipBREEDINGen_US
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen_US
cg.subject.cipCLIMATE-SMART AGRICULTUREen_US
cg.subject.cipFOOD SECURITYen_US
cg.subject.impactAreaClimate adaptation and mitigationen_US
cg.subject.impactAreaNutrition, health and food securityen_US
cg.subject.sdgSDG 2 - Zero hungeren_US
cg.subject.sdgSDG 13 - Climate actionen_US
cg.subject.sdgSDG 15 - Life on landen_US
cg.volume27en_US
dc.contributor.authorLozano-Isla, F.en_US
dc.contributor.authorFarfan-Vignolo, E.R.en_US
dc.contributor.authorGutierrez, R.en_US
dc.contributor.authorBlas, R.en_US
dc.contributor.authorAwais, K.en_US
dc.date.accessioned2025-01-14T16:11:35Zen_US
dc.date.available2025-01-14T16:11:35Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/168987en_US
dc.titleHarvest index is a key trait for screening drought-tolerant potato genotypes (Solanum tuberosum)en_US
dcterms.abstractDrought stress is a significant constraint that affects the yield of almost all major crops. Its impact is expected to worsen due to global climate change and human population expansion. Potato (Solanum tuberosum L.) is the third most important food crop worldwide, but it is highly susceptible to drought stress. In order to understand the effects of drought stress on yield and identify traits for selecting drought-tolerant potato genotypes, we evaluated the response of a range of agronomic and physiological traits in 15 potato genotypes under well-watered (WW) and water deficit (WD) conditions. The harvest index (HI) was found to have a high plot-based heritability (0.98), indicating that it can be used for the indirect selection of drought-tolerant genotypes. In contrast, SPAD was sensitive to detecting early drought stress in potatoes. Drought-tolerant genotypes, including CIP392797.22 (UNICA), CIP397077.16, CIP398190.89, CIP398208.219, and CIP398208.620, were able to allocate limited water towards tuber production rather than biomass. These genotypes showed high tuber production under WW conditions and increased photosynthetic activity and water use efficiency under WD conditions.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.bibliographicCitationLozano-Isla, F.; Farfan-Vignolo, E.R.; Gutierrez, R.; Blas, R.; Awais, K. 2024. Harvest index is a key trait for screening drought-tolerant potato genotypes (Solanum tuberosum). Journal of Crop Science and Biotechnology. ISSN 2005-8276. 27. pp. 91–103. https://doi.org/10.1007/s12892-023-00215-2en_US
dcterms.extentpp. 91–103en_US
dcterms.issued2024-07-04en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.subjectdrought toleranceen_US
dcterms.subjectSolanum tuberosumen_US
dcterms.subjectharvest indexen_US
dcterms.subjectphotosynthesisen_US
dcterms.subjectgenotypesen_US
dcterms.typeJournal Articleen_US

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