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| Registros recuperados : 476 | |
| Registros recuperados : 476 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
03/03/2023 |
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Data da última atualização: |
27/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CARVALHO, J. N. de; PIO, R.; CARVALHO, P. A. de; BARBOSA, M. A. G.; LEAO, P. C. de S. |
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Afiliação: |
JULLYANNA NAIR DE CARVALHO, Universidade Federal de Lavras; RAFAEL PIO, Universidade Federal de Lavras; POLLYANNA APARECIDA DE CARVALHO, Centro de Tecnologia Canavieira, Piracicaba, SP; MARIA ANGELICA GUIMARAES BARBOSA, CPATSA; PATRICIA COELHO DE SOUZA LEAO, CPATSA. |
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Título: |
Estimates of genetic parameters and the selection of table grape hybrids in semiarid regions of Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Euphytica, v. 219, 35, 2023. |
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DOI: |
https://doi.org/10.1007/s10681-023-03163-8 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate the repeatability coefficients, optimal number of harvests, and genetic gains and to select superior hybrids of table grapes for the development of cultivars adapted to semiarid conditions in Brazil. The mixed model methodology REML/BLUP was used to estimate the variance components and predict the genotypic values. Two hundred table grape hybrids were evaluated during six harvests at the Mandacaru Experimental Field in Embrapa Semiárido, Juazeiro, Bahia, Brazil. The experiment was implemented in the absence of an experimental design, with a single individual of each genotype. Twelve quantitative morphoagronomic variables were evaluated. The repeatability coefficients were as follows: 0.20 (yield), 0.18 (number of bunches), 0.37 (bunch length), 0.30 (bunch width), 0.47 (bunch weight), 0.60 (berry length), 0.68 (bunch diameter), 0.70 (berry weight), 0.14 (soluble solids content) and 0.13 (ratio). The accuracies obtained by performing m repeated measurements revealed that for berry characteristics, only one measurement was sufficient; two measurements were required for the length and weight of the bunch; three measurements were required for the bunch width; four measurements were required for the yield and five measurements for the number of bunches; for the soluble solids content and ratio, seven and six measurements were needed, respectively. Individual genotypic selection allows high genetic gains for bunch and berry traits and satisfactory gains for quality traits. In addition, three superior genotypes (?BRS Tainá?, CPATSA 05.168 and CPATSA 79.100) wereidentified for eight traits simultaneously, with ?BRS Tainá? being identified as an apyrenic cultivar. MenosThe objective of this study was to estimate the repeatability coefficients, optimal number of harvests, and genetic gains and to select superior hybrids of table grapes for the development of cultivars adapted to semiarid conditions in Brazil. The mixed model methodology REML/BLUP was used to estimate the variance components and predict the genotypic values. Two hundred table grape hybrids were evaluated during six harvests at the Mandacaru Experimental Field in Embrapa Semiárido, Juazeiro, Bahia, Brazil. The experiment was implemented in the absence of an experimental design, with a single individual of each genotype. Twelve quantitative morphoagronomic variables were evaluated. The repeatability coefficients were as follows: 0.20 (yield), 0.18 (number of bunches), 0.37 (bunch length), 0.30 (bunch width), 0.47 (bunch weight), 0.60 (berry length), 0.68 (bunch diameter), 0.70 (berry weight), 0.14 (soluble solids content) and 0.13 (ratio). The accuracies obtained by performing m repeated measurements revealed that for berry characteristics, only one measurement was sufficient; two measurements were required for the length and weight of the bunch; three measurements were required for the bunch width; four measurements were required for the yield and five measurements for the number of bunches; for the soluble solids content and ratio, seven and six measurements were needed, respectively. Individual genotypic selection allows high genetic gains for bunch and berry traits and sat... Mostrar Tudo |
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Palavras-Chave: |
Coeficiente de repetibilidade; REML/BLUP; Seletivo precisão; Uva de mesa; Videira melhoramento. |
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Thesagro: |
Melhoramento Genético Vegetal; Uva. |
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Thesaurus NAL: |
Genetically modified plants; Vitis. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152084/1/Estimates-of-genetic-parameters-and-the-selection-of-table-grape-hybrids-in-semiarid-regions-of-Brazil-Uva-de-mesa.pdf
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Marc: |
LEADER 02608naa a2200289 a 4500
001 2152084
005 2023-03-27
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10681-023-03163-8$2DOI
100 1 $aCARVALHO, J. N. de
245 $aEstimates of genetic parameters and the selection of table grape hybrids in semiarid regions of Brazil.$h[electronic resource]
260 $c2023
520 $aThe objective of this study was to estimate the repeatability coefficients, optimal number of harvests, and genetic gains and to select superior hybrids of table grapes for the development of cultivars adapted to semiarid conditions in Brazil. The mixed model methodology REML/BLUP was used to estimate the variance components and predict the genotypic values. Two hundred table grape hybrids were evaluated during six harvests at the Mandacaru Experimental Field in Embrapa Semiárido, Juazeiro, Bahia, Brazil. The experiment was implemented in the absence of an experimental design, with a single individual of each genotype. Twelve quantitative morphoagronomic variables were evaluated. The repeatability coefficients were as follows: 0.20 (yield), 0.18 (number of bunches), 0.37 (bunch length), 0.30 (bunch width), 0.47 (bunch weight), 0.60 (berry length), 0.68 (bunch diameter), 0.70 (berry weight), 0.14 (soluble solids content) and 0.13 (ratio). The accuracies obtained by performing m repeated measurements revealed that for berry characteristics, only one measurement was sufficient; two measurements were required for the length and weight of the bunch; three measurements were required for the bunch width; four measurements were required for the yield and five measurements for the number of bunches; for the soluble solids content and ratio, seven and six measurements were needed, respectively. Individual genotypic selection allows high genetic gains for bunch and berry traits and satisfactory gains for quality traits. In addition, three superior genotypes (?BRS Tainá?, CPATSA 05.168 and CPATSA 79.100) wereidentified for eight traits simultaneously, with ?BRS Tainá? being identified as an apyrenic cultivar.
650 $aGenetically modified plants
650 $aVitis
650 $aMelhoramento Genético Vegetal
650 $aUva
653 $aCoeficiente de repetibilidade
653 $aREML/BLUP
653 $aSeletivo precisão
653 $aUva de mesa
653 $aVideira melhoramento
700 1 $aPIO, R.
700 1 $aCARVALHO, P. A. de
700 1 $aBARBOSA, M. A. G.
700 1 $aLEAO, P. C. de S.
773 $tEuphytica$gv. 219, 35, 2023.
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Embrapa Semiárido (CPATSA) |
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