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Quinoa drought responses and adaptation

Authordc.contributor.authorZurita Silva, Andrés 
Authordc.contributor.authorJacobsen, Sven-Erik 
Authordc.contributor.authorRazzaghi, Fatemeh 
Authordc.contributor.authorÁlvarez Flores, Ricardo 
Authordc.contributor.authorRuiz, Karina B. 
Authordc.contributor.authorMorales, Andrea 
Authordc.contributor.authorSilva Ascencio, Herman 
Admission datedc.date.accessioned2015-05-25T20:30:56Z
Available datedc.date.available2015-05-25T20:30:56Z
Publication datedc.date.issued2015
Cita de ítemdc.identifier.citationEn: Bazile, D., Bertero, D. & Nieto, C. (eds.) State of the art report on quinoa around the world in 2013. Chapter 2.4. Santiago, Chile: FAO/CIRAD, 2015. pp. 157-171en_US
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/130689
Abstractdc.description.abstractQuinoa thrives under a wide range of soil and climate conditions, from cold and arid areas to wet tropical regions. The adaptability of quinoa to various levels of drought is due to the differentiation of a diversity of ecotypes originating in contrasting agro-environments. Plants display various adaptive strategies to drought stress, from morphological to physiological adaptations that serve a range of responses to water deficit, from avoidance to resistance and tolerance. Plants cope with drought stress by changing and modifying key physiological processes, such as photosynthesis, respiration, water relations and antioxidant and hormone metabolism. Whole-plant responses to drought involve changes in leaf and root growth, in some cases with strong ontogenetic variation. These drought responses at both physiological and morphological levels show intraspecific variation related to ecotypic differentiation. This chapter explores the responses to this abiotic stress and reviews possible mechanisms concurring at both whole plant and tissue level, including recent determinations from architectural, morphological, physiological and molecular perspectives. Quinoa thus represents an invaluable opportunity, both as a potential crop in consideration of present and future climate change challenges, and as an important source of genes with biotechnological applications.en_US
Lenguagedc.language.isoenen_US
Publisherdc.publisherFAO/CIRADen_US
Type of licensedc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Keywordsdc.subjectChenopodium quinoaen_US
Keywordsdc.subjectDroughten_US
Keywordsdc.subjectOntogenyen_US
Keywordsdc.subjectPhysiological responsesen_US
Keywordsdc.subjectMorphological traitsen_US
Keywordsdc.subjectPlant architectureen_US
Keywordsdc.subjectMolecular responsesen_US
Keywordsdc.subjectIntraspecific variationen_US
Títulodc.titleQuinoa drought responses and adaptationen_US
Document typedc.typeCapítulo de libroen_US


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 Chile