| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Soja; Embrapa Unidades Centrais. |
|
Data corrente: |
20/03/2008 |
|
Data da última atualização: |
20/10/2009 |
|
Tipo da produção científica: |
Documentos |
|
Autoria: |
CARGNIN, A. |
|
Afiliação: |
Adeliano Cargnin, CPAC. |
|
Título: |
Seleção recorrente no melhoramento genético de plantas autógamas. |
|
Ano de publicação: |
2007 |
|
Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2007. |
|
Páginas: |
24 p. |
|
Série: |
(Embrapa Cerrados. Documentos, 184). |
|
Idioma: |
Português |
|
Conteúdo: |
ABSTRACT: The recurrent selection is a dynamic and continuous process, which involves the obtainment of individuals or families, evaluation, selection and intercrossing of the best ones, aiming to increase the frequence oft he favourable alleles and, consequently, improve the expression of the character selction. The recurrent selection may be carried out in two manners concerning the selection method: selection in individual level also denoted as phenotypic selection or massal selection; and selection in family level, in which populations structured in families are used. The estimatives of the genetic improvements attained by breeding with recurrent selection are a useful tool to quantify the efficiency of the executed works. Differences among the methodologies employed in the evaluation of the genetic improvement, the times and periods considered, among others, not always allow the satifactory comparison or interpretation of the changes attributed to genetic ou environmetal causes. It is important to highlight that in any selective cycle the selection process of families is continuous, involving constant evaluations of the following generations. Therefore, productive pure lines presenting interesting agronomic characters may be extracted at any selection cycles. |
|
Palavras-Chave: |
Melhoramento genético; Recombination; Selection method. |
|
Thesagro: |
Melhoramento Genético Vegetal; Método de Melhoramento; Planta; Recombinação; Seleção Recorrente. |
|
Thesaurus Nal: |
breeding methods; plant breeding. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/28639/1/doc_184.pdf
|
|
Marc: |
LEADER 02011nam a2200253 a 4500
001 1571979
005 2009-10-20
008 2007 bl uuuu u0uu1 u #d
100 1 $aCARGNIN, A.
245 $aSeleção recorrente no melhoramento genético de plantas autógamas.
260 $aPlanaltina, DF: Embrapa Cerrados$c2007
300 $a24 p.
490 $a(Embrapa Cerrados. Documentos, 184).
520 $aABSTRACT: The recurrent selection is a dynamic and continuous process, which involves the obtainment of individuals or families, evaluation, selection and intercrossing of the best ones, aiming to increase the frequence oft he favourable alleles and, consequently, improve the expression of the character selction. The recurrent selection may be carried out in two manners concerning the selection method: selection in individual level also denoted as phenotypic selection or massal selection; and selection in family level, in which populations structured in families are used. The estimatives of the genetic improvements attained by breeding with recurrent selection are a useful tool to quantify the efficiency of the executed works. Differences among the methodologies employed in the evaluation of the genetic improvement, the times and periods considered, among others, not always allow the satifactory comparison or interpretation of the changes attributed to genetic ou environmetal causes. It is important to highlight that in any selective cycle the selection process of families is continuous, involving constant evaluations of the following generations. Therefore, productive pure lines presenting interesting agronomic characters may be extracted at any selection cycles.
650 $abreeding methods
650 $aplant breeding
650 $aMelhoramento Genético Vegetal
650 $aMétodo de Melhoramento
650 $aPlanta
650 $aRecombinação
650 $aSeleção Recorrente
653 $aMelhoramento genético
653 $aRecombination
653 $aSelection method
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
31/10/2019 |
|
Data da última atualização: |
31/10/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
QUEIROZ, M. G. de; SILVA, T. G. F. da; ZOLNIER, S.; SOUZA, C. A. A. de; SOUZA, L. S. B. de; STEIDLE NETO, A. J.; ARAUJO, G. G. L. de; FERREIRA, W. P. M. |
|
Afiliação: |
Maria Gabriela de Queiroz, UFV; Thieres George Freire da Silva, UFRPE - Serra Talhada, PE; Sérgio Zolnier, UFV; Carlos André Alves de Souza, UFRPE - Recife, PE; Luciana Sandra Bastos de Souza, UFRPE - Serra Talhada, PE; Antonio José Steidle Neto, Universidade Federal de São João Del-Rei - Sete Lagoas, MG; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; WILLIAMS PINTO MARQUES FERREIRA, CNPCa. |
|
Título: |
Seasonal patterns of deposition litterfall in a seasonal dry tropical forest. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 279, 107712, dec. 2019. |
|
DOI: |
10.1016/j.agrformet.2019.107712 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall deposition was determined by the environmental conditions and physiological responses of the vegetation, which are fundamental to maintaining the Caatinga Domain. MenosThe Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall depos... Mostrar Tudo |
|
Palavras-Chave: |
Padrão sazonal; Processo de decomposição; Semiárido; Variáveis ??ambientais. |
|
Thesagro: |
Caatinga; Vegetação Nativa. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204019/1/Seasona-lpatterns-of-deposition-2019.pdf
|
|
Marc: |
LEADER 02542naa a2200289 a 4500
001 2113706
005 2019-10-31
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agrformet.2019.107712$2DOI
100 1 $aQUEIROZ, M. G. de
245 $aSeasonal patterns of deposition litterfall in a seasonal dry tropical forest.$h[electronic resource]
260 $c2019
520 $aThe Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall deposition was determined by the environmental conditions and physiological responses of the vegetation, which are fundamental to maintaining the Caatinga Domain.
650 $aCaatinga
650 $aVegetação Nativa
653 $aPadrão sazonal
653 $aProcesso de decomposição
653 $aSemiárido
653 $aVariáveis ??ambientais
700 1 $aSILVA, T. G. F. da
700 1 $aZOLNIER, S.
700 1 $aSOUZA, C. A. A. de
700 1 $aSOUZA, L. S. B. de
700 1 $aSTEIDLE NETO, A. J.
700 1 $aARAUJO, G. G. L. de
700 1 $aFERREIRA, W. P. M.
773 $tAgricultural and Forest Meteorology$gv. 279, 107712, dec. 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
