Water restriction scenarios and their effects on traits in potato with different degrees of drought tolerance

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cg.authorship.typesCGIAR single centre
cg.contributor.affiliationGansu Agricultural University
cg.contributor.affiliationInternational Potato Center
cg.contributor.affiliationChinese Academy of Agricultural Sciences
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorNational Natural Science Foundation of China
cg.contributor.donorChinese Academy of Agricultural Sciences
cg.contributor.donorKey Lab Grant
cg.creator.identifierDavid Ramirez: 0000-0003-4546-9745
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.scienta.2019.05.052
cg.isijournalISI Journal
cg.issn0304-4238
cg.journalScientia Horticulturae
cg.number108525
cg.reviewStatusPeer Review
cg.subject.cipCLIMATE CHANGE
cg.subject.cipCLIMATE-SMART AGRICULTURE
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCI
cg.subject.cipPOTATO AGRI-FOOD SYSTEMS
cg.subject.cipPOTATOES
cg.volume256
dc.contributor.authorLin, X.
dc.contributor.authorRamírez, D.
dc.contributor.authorQin, J.
dc.contributor.authorDormatey R.
dc.contributor.authorBi, Zhenzhen
dc.contributor.authorSun, C.
dc.contributor.authorWang, H.
dc.contributor.authorBai, J.
dc.date.accessioned2019-06-05T14:17:59Zen
dc.date.available2019-06-05T14:17:59Zen
dc.identifier.urihttps://hdl.handle.net/10568/101472
dc.titleWater restriction scenarios and their effects on traits in potato with different degrees of drought toleranceen
dcterms.abstractThe search for plant traits associated with drought tolerance for genetic improvement is an important issue in breeding acceleration programs. However, plant traits expression depends on the drought scenario, thus the investigation of this dependence is crucial for drought tolerant related traits selection in important crops like potato. In this study, six potato genotypes with contrasted drought sensitivity were submitted to a long- (LTWR) from flower budding formation until harvest and short-term (STWR, 4 cycles) water restriction and compared to irrigated condition (control). Indicators related to chlorophyll concentration increase (ChlSPAD_Amp), senescence delay (as slope of chlorophyll concentration declined, SlopeChl), oxidative defense and damage through superoxide dismutase, peroxidase (POD) and malonaldehyde (MDA) synthesis in comparison with control (△) were calculated and contrasted with a drought tolerance index (DTI). ChlSPAD_Amp, △MDA and SlopeChl explained 22–55%, 74–72% and 0–81% of DTI linear variation under STWR-LTWR respectively. Significant correlations were found only under LTWR, where oxidative damage and defense (specially △POD) were associated with ChlSPAD_Amp and SlopeChl. This study cautions the drought scenario-dependency of some traits related to senescence delay and oxidative defense-damage, whereas the stability of leaf greenness (taking care of high drought sensitive genotypes) invites further efforts using remote sensing technologies for their test in large panel breeding programs.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.audienceAcademics
dcterms.audienceCGIAR
dcterms.audienceDevelopment Practitioners
dcterms.available2019-06-04
dcterms.bibliographicCitationLi, X.; Ramírez, D.; Qin, J.; Dormatey, R.; Bi, Z., Sun, C.; Wang, H.; Bai, J. 2019. Water restriction scenarios and their effects on traits in potato with different degrees of drought tolerance. Scientia Horticulturae. ISSN 0304-4238. Available online 4 Jun 2019. 9p.en
dcterms.extent9 p.
dcterms.issued2019-06-04
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevier
dcterms.subjectsenescenceen
dcterms.subjectsolanum tuberosumen
dcterms.subjectdrought stressen
dcterms.subjectpotatoesen
dcterms.subjectwateren
dcterms.subjectdrought toleranceen
dcterms.typeJournal Article

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