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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
20/06/1997 |
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Data da última atualização: |
20/06/1997 |
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Autoria: |
FAVORETTO, V.; TONINI JUNIOR, R.; REIS, R. A.; RODRIGUES, L. R. de A. |
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Título: |
Efeito da altura e da frequencia de corte sobre a producao, composicao bromatologica e vigor de rebrota do capim-coloniao. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.22, n.11/12, p.1279-1285, nov./dez/1987. |
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Idioma: |
Português |
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Conteúdo: |
O trabalho foi conduzido no Campus da Faculdade de Ciencias Agrarias e Veterinarias de Jaboticabal/UNESP com o objetivo de estudar o efeito de duas frequencias (35 e 42 dias) e duas alturas do corte (15cm e 30cm do solo) sobre as caracteristicas morfo-fisiologicas de recuperacao, a producao e a composicao bromatologica do capim-coloniao (Panicum maximum Jacq.). Os resultados revelaram que as plantas cortadas a intervalos de 42 dias apresentaram maior percentagem de perfilhos decapitados (53,70%), menor vigor de rebrota (918,89 kg de Ms/ha/21dias),porem maior producao de materia seca (12,652,67 kg/ha). O vigor de rebrota mostrou melhor correlacao com a percentagem de perfilhos decapitados (r = 0,60*), do que com os teores de carboidratos totais nao estruturais da base do colmo (r = -0,04) e da parte subterranea (r = -0,39). Com bases nas producoes de materia seca e de proteina bruta, bem como, na composicao bromatologica, o capim-coloniao poderia ser cortado, no periodo de janeiro a abril, a intervalos de 42 dias, independentemente das alturas adotadas (15 cm ou 30 cm do solo). |
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Palavras-Chave: |
Capim-coloniao; Carboidratos totais nao estruturais; Cutting time; Management; Total non structural carbohydrates. |
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Thesagro: |
Época de Corte; Manejo. |
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Categoria do assunto: |
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Marc: |
LEADER 01871naa a2200241 a 4500
001 1089458
005 1997-06-20
008 1987 bl uuuu u00u1 u #d
100 1 $aFAVORETTO, V.
245 $aEfeito da altura e da frequencia de corte sobre a producao, composicao bromatologica e vigor de rebrota do capim-coloniao.
260 $c1987
520 $aO trabalho foi conduzido no Campus da Faculdade de Ciencias Agrarias e Veterinarias de Jaboticabal/UNESP com o objetivo de estudar o efeito de duas frequencias (35 e 42 dias) e duas alturas do corte (15cm e 30cm do solo) sobre as caracteristicas morfo-fisiologicas de recuperacao, a producao e a composicao bromatologica do capim-coloniao (Panicum maximum Jacq.). Os resultados revelaram que as plantas cortadas a intervalos de 42 dias apresentaram maior percentagem de perfilhos decapitados (53,70%), menor vigor de rebrota (918,89 kg de Ms/ha/21dias),porem maior producao de materia seca (12,652,67 kg/ha). O vigor de rebrota mostrou melhor correlacao com a percentagem de perfilhos decapitados (r = 0,60*), do que com os teores de carboidratos totais nao estruturais da base do colmo (r = -0,04) e da parte subterranea (r = -0,39). Com bases nas producoes de materia seca e de proteina bruta, bem como, na composicao bromatologica, o capim-coloniao poderia ser cortado, no periodo de janeiro a abril, a intervalos de 42 dias, independentemente das alturas adotadas (15 cm ou 30 cm do solo).
650 $aÉpoca de Corte
650 $aManejo
653 $aCapim-coloniao
653 $aCarboidratos totais nao estruturais
653 $aCutting time
653 $aManagement
653 $aTotal non structural carbohydrates
700 1 $aTONINI JUNIOR, R.
700 1 $aREIS, R. A.
700 1 $aRODRIGUES, L. R. de A.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.22, n.11/12, p.1279-1285, nov./dez/1987.
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Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
27/11/2023 |
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Data da última atualização: |
27/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
MARQUES JUNIOR, E.; ROSADO, L. D. S.; COSTA, A. C.; CAIXETA, E. T.; SANTOS, C. E. M. dos. |
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Afiliação: |
EDILSON MARQUES JUNIOR, UNIVERSIDADE FEDERAL DE VIÇOSA; LUCIANA DOMICIANO SILVA ROSADO, UNIVERSIDADE FEDERAL DE VIÇOSA; ANA CLAUDIA COSTA, UNIVERSIDADE FEDERAL DE LAVRAS; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; CARLOS EDUARDO MAGALHÃES DOS SANTOS, UNIVERSIDADE FEDERAL DE VIÇOSA. |
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Título: |
Full-sib progenies show greater genetic diversity than half-sib progenies in sour passion fruit: an approach by ssr markers. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Molecular Biology Reports, v. 50, n. 5, p. 4133-4144, 2023. |
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DOI: |
https://doi.org/10.1007/s11033-023-08340-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Genetic variability is the most important parameter in plant breeding based on selection. There is a need for morpho-agronomic and molecular characterization of Passiflora species, to exploit their genetic resources more efficiently. No study has yet been carried out to compare half-sib and full-sib families in relation to the magnitude of the genetic variability obtained in them, and then to elucidate the advantages or disadvantages of each one. Methods and results: In the present study, SSR markers were used to evaluate the genetic structure and diversity of half-sib and full-sib progenies of sour passion fruit. Two full-sib progenies (PSA and PSB), and a half-sib progeny (PHS), together with their parents, were genotyped with a set of eight pairs of SSR markers. Discriminant Analysis of Principal Components (DAPC) and Structure software were used to study the genetic structure of the progenies. The results indicate that the half-sib progeny has lower genetic variability, although it has higher allele richness. By the AMOVA most of the genetic variability was found within the progenies. Three groups were clearly observed in the DAPC analysis, while two hypothetical groups (k = 2) were observed in the Bayesian approach. The PSB progeny showed a high genetic mixture between the PSA and PHS progenies. Conclusion: Lower genetic variability is found in half-sib progenies. The results obtained here allow us to suppose that the selection within full-sib progenies will possibly provide better estimates of genetic variance in sour passion fruit breeding programs, since they provide greater genetic diversity. MenosBackground: Genetic variability is the most important parameter in plant breeding based on selection. There is a need for morpho-agronomic and molecular characterization of Passiflora species, to exploit their genetic resources more efficiently. No study has yet been carried out to compare half-sib and full-sib families in relation to the magnitude of the genetic variability obtained in them, and then to elucidate the advantages or disadvantages of each one. Methods and results: In the present study, SSR markers were used to evaluate the genetic structure and diversity of half-sib and full-sib progenies of sour passion fruit. Two full-sib progenies (PSA and PSB), and a half-sib progeny (PHS), together with their parents, were genotyped with a set of eight pairs of SSR markers. Discriminant Analysis of Principal Components (DAPC) and Structure software were used to study the genetic structure of the progenies. The results indicate that the half-sib progeny has lower genetic variability, although it has higher allele richness. By the AMOVA most of the genetic variability was found within the progenies. Three groups were clearly observed in the DAPC analysis, while two hypothetical groups (k = 2) were observed in the Bayesian approach. The PSB progeny showed a high genetic mixture between the PSA and PHS progenies. Conclusion: Lower genetic variability is found in half-sib progenies. The results obtained here allow us to suppose that the selection within full-sib progenies will... Mostrar Tudo |
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Thesaurus NAL: |
Genetic variance; Passiflora edulis f. edulis; Passion fruits; Plant breeding; Progeny. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02432naa a2200241 a 4500
001 2158742
005 2023-11-27
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11033-023-08340-5$2DOI
100 1 $aMARQUES JUNIOR, E.
245 $aFull-sib progenies show greater genetic diversity than half-sib progenies in sour passion fruit$ban approach by ssr markers.$h[electronic resource]
260 $c2023
520 $aBackground: Genetic variability is the most important parameter in plant breeding based on selection. There is a need for morpho-agronomic and molecular characterization of Passiflora species, to exploit their genetic resources more efficiently. No study has yet been carried out to compare half-sib and full-sib families in relation to the magnitude of the genetic variability obtained in them, and then to elucidate the advantages or disadvantages of each one. Methods and results: In the present study, SSR markers were used to evaluate the genetic structure and diversity of half-sib and full-sib progenies of sour passion fruit. Two full-sib progenies (PSA and PSB), and a half-sib progeny (PHS), together with their parents, were genotyped with a set of eight pairs of SSR markers. Discriminant Analysis of Principal Components (DAPC) and Structure software were used to study the genetic structure of the progenies. The results indicate that the half-sib progeny has lower genetic variability, although it has higher allele richness. By the AMOVA most of the genetic variability was found within the progenies. Three groups were clearly observed in the DAPC analysis, while two hypothetical groups (k = 2) were observed in the Bayesian approach. The PSB progeny showed a high genetic mixture between the PSA and PHS progenies. Conclusion: Lower genetic variability is found in half-sib progenies. The results obtained here allow us to suppose that the selection within full-sib progenies will possibly provide better estimates of genetic variance in sour passion fruit breeding programs, since they provide greater genetic diversity.
650 $aGenetic variance
650 $aPassiflora edulis f. edulis
650 $aPassion fruits
650 $aPlant breeding
650 $aProgeny
700 1 $aROSADO, L. D. S.
700 1 $aCOSTA, A. C.
700 1 $aCAIXETA, E. T.
700 1 $aSANTOS, C. E. M. dos
773 $tMolecular Biology Reports$gv. 50, n. 5, p. 4133-4144, 2023.
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