Integrated root phenotypes for improved rice performance under low nitrogen availability

cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationUniversity of Nottinghamen
cg.contributor.affiliationPennsylvania State Universityen
cg.contributor.affiliationInternational Rice Research Instituteen
cg.contributor.affiliationUniversity of Southern Queenslanden
cg.contributor.affiliationUniversity of Helsinkien
cg.contributor.crpExcellence in Breeding
cg.contributor.donorCGIAR Trust Funden
cg.contributor.donorBiotechnology and Biological Sciences Research Council, United Kingdomen
cg.contributor.donorNewton Funden
cg.contributor.donorUS Foundation for Food and Agriculture Researchen
cg.contributor.initiativeAccelerated Breeding
cg.contributor.initiativePlant Health
cg.creator.identifierIshan Bipin Ajmera: 0000-0002-8770-5235
cg.creator.identifierAmelia Henry: 0000-0001-6255-5480
cg.creator.identifierando mariot radanielson: 0000-0002-8099-9904
cg.creator.identifierStephanie P. Klein: 0000-0003-4450-6057
cg.creator.identifierAleksandr Ianevski: 0000-0002-7780-482X
cg.creator.identifierMalcolm Bennett: 0000-0003-0475-390X
cg.creator.identifierLeah Band: 0000-0002-6979-1117
cg.creator.identifierJonathan Lynch: 0000-0002-7265-9790
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1111/pce.14284en
cg.isijournalISI Journalen
cg.issn1365-3040en
cg.issue3en
cg.journalPlant, Cell and Environmenten
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaGenetic Innovation
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.impactAreaNutrition, health and food security
cg.volume45en
dc.contributor.authorAjmera, Ishanen
dc.contributor.authorHenry, Ameliaen
dc.contributor.authorRadanielson, Ando M.en
dc.contributor.authorKlein, Stephanie P.en
dc.contributor.authorIanevski, Aleksandren
dc.contributor.authorBennett, Malcolm J.en
dc.contributor.authorBand, Leah R.en
dc.contributor.authorLynch, Jonathan P.en
dc.date.accessioned2022-12-27T08:43:54Zen
dc.date.available2022-12-27T08:43:54Zen
dc.identifier.urihttps://hdl.handle.net/10568/126318
dc.titleIntegrated root phenotypes for improved rice performance under low nitrogen availabilityen
dcterms.abstractGreater nitrogen efficiency would substantially reduce the economic, energy andenvironmental costs of rice production. We hypothesized that synergistic balancingof the costs and benefits for soil exploration among root architectural phenes isbeneficial under suboptimal nitrogen availability. An enhanced implementation ofthe functional–structural modelOpenSimRootfor rice integrated with theORYZA_v3crop model was used to evaluate the utility of combinations of root architecturalphenes, namely nodal root angle, the proportion of smaller diameter nodal roots,nodal root number; and L‐type and S‐type lateral branching densities, for plantgrowth under low nitrogen. Multiple integrated root phenotypes were identifiedwith greater shoot biomass under low nitrogen than the reference cultivar IR64. Thesuperiority of these phenotypes was due to synergism among root phenes ratherthan the expected additive effects of phene states. Representative optimal pheno-types were predicted to have up to 80% greater grain yield with low N supply in therainfed dry direct‐seeded agroecosystem over future weather conditions, comparedto IR64. These phenotypes merit consideration as root ideotypes for breeding ricecultivars with improved yield under rainfed dry direct‐seeded conditions with limitednitrogen availability. The importance of phene synergism for the performance ofintegrated phenotypes has implications for crop breeding.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceExtensionen
dcterms.audienceFarmersen
dcterms.audienceGeneral Publicen
dcterms.audienceNGOsen
dcterms.audiencePolicy Makersen
dcterms.audienceScientistsen
dcterms.available2022-02-23
dcterms.bibliographicCitationAjmera, Ishan, Henry, Amelia, Radanielson, Ando M., Klein, Stephanie P., Ianevski, Aleksandr, Ben-nett, Malcolm J., Band, Leah R. and Lynch, Jonathan P. 2022. Integrated root phenotypes for improved rice performance under low nitrogen availability. Plant, Cell & Environment 45(3):805-822.en
dcterms.extent805-822en
dcterms.issued2022-03
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherWileyen
dcterms.subjectriceen
dcterms.subjectmodellingen
dcterms.subjectrootsen
dcterms.subjectnitrogen fixationen
dcterms.typeJournal Article

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