Genetics components of rice root architecture and carbon isotopic fractionation parameters: a tracer for breeding in a water-saving irrigation management

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Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFaculdade de Agronomia Eliseu Maciel-
Autor(es): dc.creatorBrito, Giovani G.-
Autor(es): dc.creatorConcenço, Germani-
Autor(es): dc.creatorCosta, Vladimir E.-
Autor(es): dc.creatorFagundes, Paulo Ricardo R.-
Autor(es): dc.creatorda Silva-Filho, João Luis-
Autor(es): dc.creatorParfitt, José Maria B.-
Autor(es): dc.creatorMagalhães, Ariano-
Autor(es): dc.creatorSilva, Giovana T.-
Autor(es): dc.creatorJardim, Thaís M.-
Autor(es): dc.creatorLuccas, Nathália Furtado-
Autor(es): dc.creatorScivittaro, Walkyria B.-
Data de aceite: dc.date.accessioned2025-08-21T17:08:04Z-
Data de disponibilização: dc.date.available2025-08-21T17:08:04Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s12892-021-00109-1-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229277-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229277-
Descrição: dc.descriptionPhenotyping is the major bottleneck in the effort to develop varieties of rice (Oryza sativa L.) suitable for growing under a water-saving irrigation management, such as alternate wetting and drying irrigation techniques (AWD). To analyze if the genotypic variability for carbon isotope discrimination (CID) in rice leaves could be used as a relatively high-throughput tracer to early select superior genotypes highlighting improved root architecture traits when submitted to AWD, a set of twenty varieties grown under semi-natural conditions were submitted to two water irrigation regimes, continuous flooding (CF) and AWD cycles. Coefficients of genetic variance (π2g) obtained for root architecture, micro-morphological and physiological traits were significant for all of them regardless of the adopted irrigation system, except to mean root diameter. The three significant principal components (PCs) with eigenvalue > 1, explain most of the total variation across cycles and water regimes. For most of analyzed traits, the values of heritability coefficients were higher regardless of adopted irrigation management and trait category; for CID, the magnitudes of broad heritability at an individual level (greater than 0.80) were similar in the two irrigation techniques, evidencing that the success of the selection is independent of irrigation management. The higher CID values after three AWD cycles are associated with varieties with higher total root length and volume. To our knowledge, this is the first study demonstrating the potential application of CID as a tracer to select root architecture traits in rice when water-saving irrigation management is of concern.-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária Embrapa Algodão Núcleo Do Cerrado, Rodovia GO-462, km 12 Zona Rural, GO-
Descrição: dc.descriptionCentro de Isótopos Estáveis Prof. Dr. Carlos Ducatti” CIE Instituto de Biociências IBB UNESP Campus de Botucatu, SP-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária Embrapa Clima Temperado, Rodovia BR 392, km 78, RS-
Descrição: dc.descriptionUniversidade Federal de Pelotas Faculdade de Agronomia Eliseu Maciel, RS-
Descrição: dc.descriptionCentro de Isótopos Estáveis Prof. Dr. Carlos Ducatti” CIE Instituto de Biociências IBB UNESP Campus de Botucatu, SP-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária: 01-
Formato: dc.format19-32-
Idioma: dc.languageen-
Relação: dc.relationJournal of Crop Science and Biotechnology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAWD-
Palavras-chave: dc.subjectCarbon fractionation-
Palavras-chave: dc.subjectOryza sativa-
Palavras-chave: dc.subjectPhysiological breeding-
Palavras-chave: dc.subjectWater-saving irrigation-
Título: dc.titleGenetics components of rice root architecture and carbon isotopic fractionation parameters: a tracer for breeding in a water-saving irrigation management-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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