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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
11/10/2007 |
Data da última atualização: |
11/03/2010 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SANTANA, B. G.; CÂNDIDO, E. S.; CAMPOS, P. F.; LOBO, L. H.; LOPES, C. A.; QUIRINO, B. F. |
Afiliação: |
Carlos Alberto Lopes, Embrapa Hortaliças. |
Título: |
Análise da resistência de Arabidopsis thaliana a um isolado de Ralstonia solanacearum. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 32, ago. 2007. |
Páginas: |
S263. |
Idioma: |
Português |
Notas: |
Suplemento. Trabalho apresentado no 49. Congresso Brasileiro de Fitopatologia, 2007, Maringá, PR. Resumo n. 770. |
Palavras-Chave: |
Isolado. |
Thesagro: |
Análise; Ralstonia Solanacearum; Resistência. |
Thesaurus Nal: |
Arabidopsis thaliana. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00810naa a2200253 a 4500 001 1780530 005 2010-03-11 008 2007 bl uuuu u00u1 u #d 100 1 $aSANTANA, B. G. 245 $aAnálise da resistência de Arabidopsis thaliana a um isolado de Ralstonia solanacearum. 260 $c2007 300 $aS263. 500 $aSuplemento. Trabalho apresentado no 49. Congresso Brasileiro de Fitopatologia, 2007, Maringá, PR. Resumo n. 770. 650 $aArabidopsis thaliana 650 $aAnálise 650 $aRalstonia Solanacearum 650 $aResistência 653 $aIsolado 700 1 $aCÂNDIDO, E. S. 700 1 $aCAMPOS, P. F. 700 1 $aLOBO, L. H. 700 1 $aLOPES, C. A. 700 1 $aQUIRINO, B. F. 773 $tFitopatologia Brasileira, Brasília, DF$gv. 32, ago. 2007.
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Embrapa Hortaliças (CNPH) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
11/02/2003 |
Data da última atualização: |
25/08/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
ARAÚJO, M. R. A. de; COULMAN, B. E. |
Afiliação: |
CNPC; GRICULTURE AND AGRI-FOOD CANADA, SASKATOON RESEARCH CENTRE, AGRICULTURE AND AGRI-FOOD CANADA, SASKATOON RESEARCH CENTRE. |
Título: |
Genetic variation, heritability and progeny testing in meadow bromegrass. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Plant Breeding, v. 121, n. 5, p. 417-424, Oct. 2002. |
DOI: |
10.1046/j.1439-0523.2002.739124.x |
Idioma: |
Inglês |
Conteúdo: |
Abstract - Meadow bromegrass is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. Because relatively little breeding work has been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate genetic parameters and assess breeding methodologies for meadow bromegrass. Forty half-sib (polycross and open-pollinated) and full-sib (selfed) progenies were evaluated for dry matter and seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral detergent fibre and acid detergent fibre. Genetic variation for seed yield, harvest index, and plant height was significant in the open-pollinated and selfed tests. Genetic variation estimates for dry matter yield were negative (polycross), not significant (open-pollinated), or significant (selfed). Estimates of genetic variation for quality traits were not significant, except for acid detergent fibre (selfed). Correlations among characters indicated that it is possible to simultaneously improve seed and forage yield. Rankings of progenies by the half-sib tests for forage and seed yield were not altered by the use of the synthetic parental value (SVi), which includes information from selfed progeny. The polycross progeny test did not discriminate parents as well as the open-pollinated and selfed tests; this may have been a result of non-random pollination in the polycross. Correlation among the progeny tests, showed that open-pollinated and selfed progeny tests agreed for all characters, except for harvest index, while correlation between polycross and selfed tests were significant for six characters but not dry matter yield, and acid and neutral detergent fibres. The most dissimilar tests were polycross and open-pollinated, with significant correlations found only for fertility index, height, spread and neutral detergent fibre. It was concluded that there was significant variation and moderate heritability for most traits in the meadow bromegrass populations evaluated, and that the open-pollinated progeny test is the method of choice for selecting parents for synthetics of this species. MenosAbstract - Meadow bromegrass is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. Because relatively little breeding work has been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate genetic parameters and assess breeding methodologies for meadow bromegrass. Forty half-sib (polycross and open-pollinated) and full-sib (selfed) progenies were evaluated for dry matter and seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral detergent fibre and acid detergent fibre. Genetic variation for seed yield, harvest index, and plant height was significant in the open-pollinated and selfed tests. Genetic variation estimates for dry matter yield were negative (polycross), not significant (open-pollinated), or significant (selfed). Estimates of genetic variation for quality traits were not significant, except for acid detergent fibre (selfed). Correlations among characters indicated that it is possible to simultaneously improve seed and forage yield. Rankings of progenies by the half-sib tests for forage and seed yield were not altered by the use of the synthetic parental value (SVi), which includes information from selfed progeny. The polycross progeny test did not discriminate parents as well as the open-pollinated and selfed tests; this may have been a ... Mostrar Tudo |
Palavras-Chave: |
Herdabilidade. |
Thesagro: |
Festuca Arundinacea; Genética Vegetal; Lolium Perenne; Melhoramento Genético Vegetal; Teste de Progênie; Variação Genética. |
Thesaurus NAL: |
Bromus riparius; Forage yield; Genetic variation; Heritability; Plant genetics; Progeny testing; Seed yield. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 03207naa a2200313 a 4500 001 1528986 005 2023-08-25 008 2002 bl uuuu u00u1 u #d 024 7 $a10.1046/j.1439-0523.2002.739124.x$2DOI 100 1 $aARAÚJO, M. R. A. de 245 $aGenetic variation, heritability and progeny testing in meadow bromegrass.$h[electronic resource] 260 $c2002 520 $aAbstract - Meadow bromegrass is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. Because relatively little breeding work has been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate genetic parameters and assess breeding methodologies for meadow bromegrass. Forty half-sib (polycross and open-pollinated) and full-sib (selfed) progenies were evaluated for dry matter and seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral detergent fibre and acid detergent fibre. Genetic variation for seed yield, harvest index, and plant height was significant in the open-pollinated and selfed tests. Genetic variation estimates for dry matter yield were negative (polycross), not significant (open-pollinated), or significant (selfed). Estimates of genetic variation for quality traits were not significant, except for acid detergent fibre (selfed). Correlations among characters indicated that it is possible to simultaneously improve seed and forage yield. Rankings of progenies by the half-sib tests for forage and seed yield were not altered by the use of the synthetic parental value (SVi), which includes information from selfed progeny. The polycross progeny test did not discriminate parents as well as the open-pollinated and selfed tests; this may have been a result of non-random pollination in the polycross. Correlation among the progeny tests, showed that open-pollinated and selfed progeny tests agreed for all characters, except for harvest index, while correlation between polycross and selfed tests were significant for six characters but not dry matter yield, and acid and neutral detergent fibres. The most dissimilar tests were polycross and open-pollinated, with significant correlations found only for fertility index, height, spread and neutral detergent fibre. It was concluded that there was significant variation and moderate heritability for most traits in the meadow bromegrass populations evaluated, and that the open-pollinated progeny test is the method of choice for selecting parents for synthetics of this species. 650 $aBromus riparius 650 $aForage yield 650 $aGenetic variation 650 $aHeritability 650 $aPlant genetics 650 $aProgeny testing 650 $aSeed yield 650 $aFestuca Arundinacea 650 $aGenética Vegetal 650 $aLolium Perenne 650 $aMelhoramento Genético Vegetal 650 $aTeste de Progênie 650 $aVariação Genética 653 $aHerdabilidade 700 1 $aCOULMAN, B. E. 773 $tPlant Breeding$gv. 121, n. 5, p. 417-424, Oct. 2002.
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