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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
25/11/2019 |
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Data da última atualização: |
25/11/2019 |
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Autoria: |
BARETTA, D.; NARDINO, M.; CARVALHO, I. R.; PELEGRINI, A. J. de; FERRARI, M.; OLIVEIRA, V. F. de; SZARESKI, V. J.; OLIVEIRA, A. C. de; BARROS, W. S.; SOUZA, V. Q. de; MAIA, L. C. da. |
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Afiliação: |
Diego Baretta, Universidade Federal de Pelotas - UFPel/Faculdade de Agronomia Eliseu Maciel; Maicon Nardino; Ivan Ricardo Carvalho; Alan Junior de Pelegrin; Mauricio Ferrari; Victoria Freitas de Oliveira; Vinícius Jardel Szareski; Antonio Costa de Oliveira; Willian Silva Barros; Velci Queiróz de Souza; Luciano Carlos da Maia. |
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Título: |
Heterosis and genetic distance in intervarietal corn hybrids. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 54, e00265, 2019. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Heterose e distância genética em híbridos intervarietais de milho. |
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Conteúdo: |
The objective of this work was to evaluate the performance of intervarietal corn (Zea mays) hybrids with topcross crosses between landrace populations, and to confirm whether genetic dissimilarity between populations is correlated with the heterosis of the intervarietal hybrids in the field. Nine topcross hybrids were evaluated with their tester 'BRS Planalto', and the following landrace populations were used as parents: Argentino Branco, Dente de Ouro, Amarelão, Criolão, Caiano Rajado, Branco Oito Carreiras, Branco Roxo Índio, Cateto Branco, and Argentino Amarelo. The tester 'BRS Planalto' and the topcross hybrids Branco Oito Carreiras x 'BRS Planalto' and Criolão x 'BRS Planalto' showed higher per se potential for grain yield. The topcross hybrid Branco Oito Carreiras x 'BRS Planalto' showed a better performance for number of grains per row, grain weight, and ear diameter, whereas Criolão x 'BRS Planalto' displayed a better performance for the number of grains per row and ear length. Greater estimates of genetic distance did not necessarily result in greater heterosis values and were exclusively correlated with grain ear length. Therefore, it is not possible to predict the effects of high heterosis on grain yield, based on the genetic distance between the populations involved in the crosses. |
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Palavras-Chave: |
Dissimilaridade genética; Heterose; População crioula; Topcross. |
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Thesagro: |
Zea Mays. |
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Thesaurus Nal: |
Heterosis; Landraces; Topcrossing. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205457/1/Heterosis-and-genetic-distance.pdf
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Marc: |
LEADER 02341naa a2200349 a 4500
001 2115092
005 2019-11-25
008 2019 bl uuuu u00u1 u #d
100 1 $aBARETTA, D.
245 $aHeterosis and genetic distance in intervarietal corn hybrids.$h[electronic resource]
260 $c2019
500 $aTítulo em português: Heterose e distância genética em híbridos intervarietais de milho.
520 $aThe objective of this work was to evaluate the performance of intervarietal corn (Zea mays) hybrids with topcross crosses between landrace populations, and to confirm whether genetic dissimilarity between populations is correlated with the heterosis of the intervarietal hybrids in the field. Nine topcross hybrids were evaluated with their tester 'BRS Planalto', and the following landrace populations were used as parents: Argentino Branco, Dente de Ouro, Amarelão, Criolão, Caiano Rajado, Branco Oito Carreiras, Branco Roxo Índio, Cateto Branco, and Argentino Amarelo. The tester 'BRS Planalto' and the topcross hybrids Branco Oito Carreiras x 'BRS Planalto' and Criolão x 'BRS Planalto' showed higher per se potential for grain yield. The topcross hybrid Branco Oito Carreiras x 'BRS Planalto' showed a better performance for number of grains per row, grain weight, and ear diameter, whereas Criolão x 'BRS Planalto' displayed a better performance for the number of grains per row and ear length. Greater estimates of genetic distance did not necessarily result in greater heterosis values and were exclusively correlated with grain ear length. Therefore, it is not possible to predict the effects of high heterosis on grain yield, based on the genetic distance between the populations involved in the crosses.
650 $aHeterosis
650 $aLandraces
650 $aTopcrossing
650 $aZea Mays
653 $aDissimilaridade genética
653 $aHeterose
653 $aPopulação crioula
653 $aTopcross
700 1 $aNARDINO, M.
700 1 $aCARVALHO, I. R.
700 1 $aPELEGRINI, A. J. de
700 1 $aFERRARI, M.
700 1 $aOLIVEIRA, V. F. de
700 1 $aSZARESKI, V. J.
700 1 $aOLIVEIRA, A. C. de
700 1 $aBARROS, W. S.
700 1 $aSOUZA, V. Q. de
700 1 $aMAIA, L. C. da
773 $tPesquisa Agropecuária Brasileira$gv. 54, e00265, 2019.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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