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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
05/10/2021 |
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Data da última atualização: |
06/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CONCENÇO, G.; BRITO, G. G. de; FAGUNDES, P. R. R.; SCIVITTARO, W. B.; PARFITT, J. M. B.; MELO, T. S.; SILVA, L. B. X. da; DEUNER, S. |
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Afiliação: |
GERMANI CONCENCO, CPACT; GIOVANI GREIGH DE BRITO, CNPA; PAULO RICARDO REIS FAGUNDES, CPACT; WALKYRIA BUENO SCIVITTARO, CPACT; JOSE MARIA BARBAT PARFITT, CPACT; THAIS STRADIOTO MELO, UFPel; LARYSSA BARBOSA XAVIER DA SILVA, UFPel; SIDNEI DEUNER, UFPel. |
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Título: |
Contribution for improvement of rice breeding programs through morphoanatomical traits. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Agricultural Studies, v. 9, n. 2, p. 304-322, 2021. |
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ISSN: |
2166-0379 |
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DOI: |
10.5296/jas.v9i2.18256 |
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Idioma: |
Inglês |
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Conteúdo: |
Breeding programs aim to increase grain yield and quality through selection oriented mostly by morphological and productive traits. Although morphoanatomical traits are preponderant for plant performance, they are usually time-consuming, demanding specific equipment and trained personnel. The aim of the study is to establish relationships among morphological, micromorphological and anatomical traits of rice genotypes, to support rice breeders in choosing variables to be assessed in the search for superior rice genotypes. We assessed morphological (2nd leaf and root lengths, tiller and root number), micromorphological (vein density, intervein distance, stomatal density and opening width) and anatomical (area of sclerenchyma, xylem and phloem vessels, and percentage of aerenchyma) traits. Root number and length, area of sclerenchyma and xylem and phloem vessels are proposed to be the most efficient traits to be assessed in detailed studies aiming to identify superior genotypes in rice breeding programs, from the morphophysiological point of view. |
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Thesagro: |
Arroz; Fisiologia; Genótipo; Morfologia Vegetal. |
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Thesaurus Nal: |
Oryza. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226688/1/Artigo-Contribution-For-Improvement-Of-Rice-Breeding-Prog.pdf
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Marc: |
LEADER 01883naa a2200289 a 4500
001 2135043
005 2021-10-06
008 2021 bl uuuu u00u1 u #d
022 $a2166-0379
024 7 $a10.5296/jas.v9i2.18256$2DOI
100 1 $aCONCENÇO, G.
245 $aContribution for improvement of rice breeding programs through morphoanatomical traits.$h[electronic resource]
260 $c2021
520 $aBreeding programs aim to increase grain yield and quality through selection oriented mostly by morphological and productive traits. Although morphoanatomical traits are preponderant for plant performance, they are usually time-consuming, demanding specific equipment and trained personnel. The aim of the study is to establish relationships among morphological, micromorphological and anatomical traits of rice genotypes, to support rice breeders in choosing variables to be assessed in the search for superior rice genotypes. We assessed morphological (2nd leaf and root lengths, tiller and root number), micromorphological (vein density, intervein distance, stomatal density and opening width) and anatomical (area of sclerenchyma, xylem and phloem vessels, and percentage of aerenchyma) traits. Root number and length, area of sclerenchyma and xylem and phloem vessels are proposed to be the most efficient traits to be assessed in detailed studies aiming to identify superior genotypes in rice breeding programs, from the morphophysiological point of view.
650 $aOryza
650 $aArroz
650 $aFisiologia
650 $aGenótipo
650 $aMorfologia Vegetal
700 1 $aBRITO, G. G. de
700 1 $aFAGUNDES, P. R. R.
700 1 $aSCIVITTARO, W. B.
700 1 $aPARFITT, J. M. B.
700 1 $aMELO, T. S.
700 1 $aSILVA, L. B. X. da
700 1 $aDEUNER, S.
773 $tJournal of Agricultural Studies$gv. 9, n. 2, p. 304-322, 2021.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
03/08/2017 |
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Data da última atualização: |
03/08/2017 |
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Autoria: |
BARTZ, A. C.; MUTTONI, M.; ALBERTO, C. M.; STRECK, N. A.; MACHADO, G. A.; GIACOMELI, R.; HELGUEIRA, D. B.; MOURA, D. da S. |
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Afiliação: |
Alex Cristiano Bartz, Universidade Federal do Pampa; Martina Muttoni, Universidade do Pampa; Cleber Maus Alberto, Universidade do Pampa; Nereu Augusto Streck, Universidade Federal de Santa Maria; Geter Alves Machado, Universidade do Pampa; Robson Giacomeli, Universidade do Pampa; Diogo Balbé Helgueira, Universidade Federal de Pelotas; Diogo da Silva Moura, Universidade Federal de Pelotas. |
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Título: |
Thermal time in sprinkler-irrigated lowland rice. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 7, p. 475-484, jul. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Soma térmica em arroz de terras baixas irrigado por aspersão. |
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Conteúdo: |
The objective of this work was to evaluate methods of thermal time calculation and the duration of the development stages of lowland rice (Oryza sativa) irrigated by sprinkling. The experiment was conducted during three growing seasons (2010/2011, 2011/2012, and 2014/2015), with five irrigation water depths, six cultivars, and four replicates. Six methods of thermal time calculation were tested: two using the minimum basal temperature; two using the minimum and optimum temperatures; and two using the minimum, optimum, and maximum basal temperatures. For the thermal time calculation, the crop development cycle was divided into the vegetative, reproductive, and grain-filling phases. The methods that used the three cardinal temperatures showed the lowest coefficients of variation for most of the developmental phases. Both irrigation water depths and rice cultivars affected the thermal time of the development stages. The greater the water availability, the lower the duration of the development cycle. Thermal time values depend on the calculation method. |
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Palavras-Chave: |
Disponibilidade hídrica; Grau-dia; Lâmina de irrigação. |
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Thesagro: |
Fenologia; Oryza Sativa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162364/1/Thermal-time-in-sprinkler-irrigated.pdf
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Marc: |
LEADER 01900naa a2200277 a 4500
001 2073537
005 2017-08-03
008 2017 bl uuuu u00u1 u #d
100 1 $aBARTZ, A. C.
245 $aThermal time in sprinkler-irrigated lowland rice.
260 $c2017
500 $aTítulo em português: Soma térmica em arroz de terras baixas irrigado por aspersão.
520 $aThe objective of this work was to evaluate methods of thermal time calculation and the duration of the development stages of lowland rice (Oryza sativa) irrigated by sprinkling. The experiment was conducted during three growing seasons (2010/2011, 2011/2012, and 2014/2015), with five irrigation water depths, six cultivars, and four replicates. Six methods of thermal time calculation were tested: two using the minimum basal temperature; two using the minimum and optimum temperatures; and two using the minimum, optimum, and maximum basal temperatures. For the thermal time calculation, the crop development cycle was divided into the vegetative, reproductive, and grain-filling phases. The methods that used the three cardinal temperatures showed the lowest coefficients of variation for most of the developmental phases. Both irrigation water depths and rice cultivars affected the thermal time of the development stages. The greater the water availability, the lower the duration of the development cycle. Thermal time values depend on the calculation method.
650 $aFenologia
650 $aOryza Sativa
653 $aDisponibilidade hídrica
653 $aGrau-dia
653 $aLâmina de irrigação
700 1 $aMUTTONI, M.
700 1 $aALBERTO, C. M.
700 1 $aSTRECK, N. A.
700 1 $aMACHADO, G. A.
700 1 $aGIACOMELI, R.
700 1 $aHELGUEIRA, D. B.
700 1 $aMOURA, D. da S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 7, p. 475-484, jul. 2017.
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Embrapa Unidades Centrais (AI-SEDE) |
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