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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
06/09/2006 |
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Data da última atualização: |
18/10/2010 |
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Autoria: |
BONATO, A. L. V.; CALVO, E. S.; ARIAS, C. A. A.; TOLEDO, J. F. de F.; GERALDI, I. O. |
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Título: |
Prediction of genetic variability through AFLP-based measure of genetic distance in soybean. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 6, n. 1, p. 30-39, Mar. 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Molecular markers have been used to predict the genetic variance of segregating soyabean populations by measuring the genetic distance between parents. The genetic distance among 6 pairwise combinations of 4 soyabean lines grown in Southern Brazil were analysed. The AFLP-based distances (AFD) were estimated with 21 primer pair combinations. Additive genetic variance (D) was estimated in 100 advanced inbred lines for each cross for 7 traits, including grain yield, for 4 sowing dates and 4 years. Results showed a low but significant overall correlation between grain yield variance and AFD in the average of the 4 years and sowing dates. Considering the sowing dates the highest correlation was in October. Significant correlations were also found for five out of the remaining traits evaluated. We found no significant correlations between D and parentage coefficient for all traits evaluated, except for 100 seed weight.. |
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Palavras-Chave: |
Distância genética; Marcadores moleculares; Molecular markers. |
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Thesagro: |
Glycine Max; Soja. |
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Thesaurus Nal: |
genetic distance. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01652naa a2200241 a 4500
001 1214374
005 2010-10-18
008 2006 bl uuuu u00u1 u #d
100 1 $aBONATO, A. L. V.
245 $aPrediction of genetic variability through AFLP-based measure of genetic distance in soybean.
260 $c2006
520 $aMolecular markers have been used to predict the genetic variance of segregating soyabean populations by measuring the genetic distance between parents. The genetic distance among 6 pairwise combinations of 4 soyabean lines grown in Southern Brazil were analysed. The AFLP-based distances (AFD) were estimated with 21 primer pair combinations. Additive genetic variance (D) was estimated in 100 advanced inbred lines for each cross for 7 traits, including grain yield, for 4 sowing dates and 4 years. Results showed a low but significant overall correlation between grain yield variance and AFD in the average of the 4 years and sowing dates. Considering the sowing dates the highest correlation was in October. Significant correlations were also found for five out of the remaining traits evaluated. We found no significant correlations between D and parentage coefficient for all traits evaluated, except for 100 seed weight..
650 $agenetic distance
650 $aGlycine Max
650 $aSoja
653 $aDistância genética
653 $aMarcadores moleculares
653 $aMolecular markers
700 1 $aCALVO, E. S.
700 1 $aARIAS, C. A. A.
700 1 $aTOLEDO, J. F. de F.
700 1 $aGERALDI, I. O.
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 6, n. 1, p. 30-39, Mar. 2006.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
13/08/2023 |
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Data da última atualização: |
13/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
PEREIRA, D. G. C.; PORTUGAL, A. F.; GIUSTOLIN, T. A.; MAIA, V. M.; MEGDA, M. X. V.; KONDO, M. K. |
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Afiliação: |
DAVID GABRIEL CAMPOS PEREIRA, Universidade Estadual de Montes Claros; ARLEY FIGUEIREDO PORTUGAL, CNPMS; TERESINHA AUGUSTA GIUSTOLIN, Universidade Estadual de Montes Claros; VICTOR MARTINS MAIA, Universidade Estadual de Montes Claros; MICHELE XAVIER VIEIRA MEGDA, Universidade Estadual de Montes Claros; MARCOS KOITI KONDO, Universidade Estadual de Montes Claros. |
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Título: |
Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Catena, v. 231, 107345, 2023. |
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DOI: |
https://doi.org/10.1016/j.catena.2023.107345 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate and litter quality change the dynamics of soil organic matter (SOM) in agricultural systems, directly influencing the soil biological activity and, consequently, energy and nutrient cycling. This work evaluated the dynamics of organic carbon decomposition and nutrient release in litter in three land use management systems. The study was carried out under semi-arid conditions in Minas Gerais State, Brazil, using decomposition bags arranged in a randomized block design and four replications. The treatments consisted of three land use systems (native forest, corn, and cocoa) and seven evaluation times: 0, 30, 90, 150, 210, 270, and 330 days. Was evaluated dry matter production, litter decomposition in polyamide bags, and nutrient release (N, P, K, S, Ca, and Mg). Systems with native forest, cocoa and maize had similar average monthly litter production, a fact linked to the climate conditions. While in the semi-arid climate, the full-sun cocoa system showed a sudden oscillation in relation to the organic carbon content up to 330 days, the native forest and corn systems were more balanced, whitout significant changes. The higher litter C/N ratio in relation to the native and corn systems favors the maintenance of organic C levels in the soil. K release has a similar behavior in cultivated soils and occurs more quickly when compared to the native system. Regarding the other macronutrients, the soil in the cocoa production system showed the highest mineralization. Periods of accumulated precipitation accelerate litter decomposition and macronutrient release. The results of this study give more insight into the carbon dynamics and nutrient release from litter as a function of land use systems in a semi-arid region. MenosClimate and litter quality change the dynamics of soil organic matter (SOM) in agricultural systems, directly influencing the soil biological activity and, consequently, energy and nutrient cycling. This work evaluated the dynamics of organic carbon decomposition and nutrient release in litter in three land use management systems. The study was carried out under semi-arid conditions in Minas Gerais State, Brazil, using decomposition bags arranged in a randomized block design and four replications. The treatments consisted of three land use systems (native forest, corn, and cocoa) and seven evaluation times: 0, 30, 90, 150, 210, 270, and 330 days. Was evaluated dry matter production, litter decomposition in polyamide bags, and nutrient release (N, P, K, S, Ca, and Mg). Systems with native forest, cocoa and maize had similar average monthly litter production, a fact linked to the climate conditions. While in the semi-arid climate, the full-sun cocoa system showed a sudden oscillation in relation to the organic carbon content up to 330 days, the native forest and corn systems were more balanced, whitout significant changes. The higher litter C/N ratio in relation to the native and corn systems favors the maintenance of organic C levels in the soil. K release has a similar behavior in cultivated soils and occurs more quickly when compared to the native system. Regarding the other macronutrients, the soil in the cocoa production system showed the highest mineralization. Periods o... Mostrar Tudo |
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Palavras-Chave: |
Saco de lixo. |
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Thesagro: |
Cacau; Floresta Nativa; Milho; Serapilheira; Uso da Terra. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02513naa a2200265 a 4500
001 2155879
005 2023-08-13
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.catena.2023.107345$2DOI
100 1 $aPEREIRA, D. G. C.
245 $aLitter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region.$h[electronic resource]
260 $c2023
520 $aClimate and litter quality change the dynamics of soil organic matter (SOM) in agricultural systems, directly influencing the soil biological activity and, consequently, energy and nutrient cycling. This work evaluated the dynamics of organic carbon decomposition and nutrient release in litter in three land use management systems. The study was carried out under semi-arid conditions in Minas Gerais State, Brazil, using decomposition bags arranged in a randomized block design and four replications. The treatments consisted of three land use systems (native forest, corn, and cocoa) and seven evaluation times: 0, 30, 90, 150, 210, 270, and 330 days. Was evaluated dry matter production, litter decomposition in polyamide bags, and nutrient release (N, P, K, S, Ca, and Mg). Systems with native forest, cocoa and maize had similar average monthly litter production, a fact linked to the climate conditions. While in the semi-arid climate, the full-sun cocoa system showed a sudden oscillation in relation to the organic carbon content up to 330 days, the native forest and corn systems were more balanced, whitout significant changes. The higher litter C/N ratio in relation to the native and corn systems favors the maintenance of organic C levels in the soil. K release has a similar behavior in cultivated soils and occurs more quickly when compared to the native system. Regarding the other macronutrients, the soil in the cocoa production system showed the highest mineralization. Periods of accumulated precipitation accelerate litter decomposition and macronutrient release. The results of this study give more insight into the carbon dynamics and nutrient release from litter as a function of land use systems in a semi-arid region.
650 $aCacau
650 $aFloresta Nativa
650 $aMilho
650 $aSerapilheira
650 $aUso da Terra
653 $aSaco de lixo
700 1 $aPORTUGAL, A. F.
700 1 $aGIUSTOLIN, T. A.
700 1 $aMAIA, V. M.
700 1 $aMEGDA, M. X. V.
700 1 $aKONDO, M. K.
773 $tCatena$gv. 231, 107345, 2023.
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