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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/08/2005 |
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Data da última atualização: |
06/10/2005 |
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Autoria: |
LEMOS, G. C. da S.; PEREIRA, T. N. S.; PEREIRA, M. G.; AMARAL JÚNIOR, A. T. do. |
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Título: |
Biometric analysis of Tripsacum-maize hybrid populations. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 1, p. 64-70, Mar. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
Objective of this research was to evaluate the performance of four base-populations of maize-Tripsacum hybrid (T1, T2, T3, and T5), eight populations related to the first (T1B, T2B, T3B, T5B) and second (T1B2, T2B2, T3B2, T5B2) backcross generations between the four maize-Tripsacum hybrid populations, and the maize cultivar BR 205, besides the BR 205 cultivar, the landrace Cachoeira, and two populations: composite Flint and composite Dent. Through biometric analyses, genetic parameters and canonical correlations, it was possible to select superior genotypes for the traits flowering, plant height at 90 days, insertion of the highest ear, ear weight, and total grain weight. The average for the yield traits indicated that the four base-populations could be used in breeding programmes. Canonical correlations showed that taller plants and plants with a higher insertion of the highest ear have a tendency to bring forth plants with low yield; selection should therefore prioritize shorter genotypes.
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Palavras-Chave: |
Canonic correlations; Correlações canônicas; Genetic parameters; Maize; Parâmetros genéticos. |
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Thesagro: |
Milho; Zea Mays. |
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Thesaurus Nal: |
Tripsacum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01731naa a2200253 a 4500
001 1213583
005 2005-10-06
008 2005 bl uuuu u00u1 u #d
100 1 $aLEMOS, G. C. da S.
245 $aBiometric analysis of Tripsacum-maize hybrid populations.
260 $c2005
520 $aObjective of this research was to evaluate the performance of four base-populations of maize-Tripsacum hybrid (T1, T2, T3, and T5), eight populations related to the first (T1B, T2B, T3B, T5B) and second (T1B2, T2B2, T3B2, T5B2) backcross generations between the four maize-Tripsacum hybrid populations, and the maize cultivar BR 205, besides the BR 205 cultivar, the landrace Cachoeira, and two populations: composite Flint and composite Dent. Through biometric analyses, genetic parameters and canonical correlations, it was possible to select superior genotypes for the traits flowering, plant height at 90 days, insertion of the highest ear, ear weight, and total grain weight. The average for the yield traits indicated that the four base-populations could be used in breeding programmes. Canonical correlations showed that taller plants and plants with a higher insertion of the highest ear have a tendency to bring forth plants with low yield; selection should therefore prioritize shorter genotypes.
650 $aTripsacum
650 $aMilho
650 $aZea Mays
653 $aCanonic correlations
653 $aCorrelações canônicas
653 $aGenetic parameters
653 $aMaize
653 $aParâmetros genéticos
700 1 $aPEREIRA, T. N. S.
700 1 $aPEREIRA, M. G.
700 1 $aAMARAL JÚNIOR, A. T. do
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 5, n. 1, p. 64-70, Mar. 2005.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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