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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/05/2002 |
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Data da última atualização: |
22/08/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ANJOS, J. B. dos; SILVA, M. S. L. da; LOPES, P. R. C.; GOMES, T. C. de A. |
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Afiliação: |
JOSE BARBOSA DOS ANJOS, CPATSA; MARIA SONIA LOPES DA SILVA, CPATSA; PAULO ROBERTO COELHO LOPES, CPATSA; TAMARA CLAUDIA DE ARAUJO GOMES, CPATSA. |
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Título: |
Tecnicas de captacao de agua de chuva in situ viabiliza o uso eficiente de agua para exploracao agricola no semi-arido do Nordeste do Brasil. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: SEMINARIO INTERNACIONAL CYTED-XVII, 2., 2002, Salvador. Um enfoque integrado para a gestao sustentavel da agua - experiencias em regioes semi-aridas: resumos. Salvador: CYTED: UFBA, 2002. |
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Idioma: |
Português |
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Conteúdo: |
Na regiao semi-arida brasileira, o regime pluviometrico anual e um fator preponderante para o sucesso da agricultura dependente de chuva, sendo a sua ma distribuicao, no tempo e no espaco, a principal responsavel pela perda de safras agricolas. O sistema tradicional de cultivo na regiao semi-arida e a semeadura em covas, no plano, com o auxilio de uma enxada, o que da origem a uma pequena depressao, capaz de armazenar certa quantidade de agua de chuva. Este sistema e aparentemente pouco agressivo ao meio ambiente, no entanto, como o solo nao foi preparado (arado), a sua superficie apresenta-se ligeiramente compactada, dificultando a infiltracao e facilitando o escoamento superficial, a que contribui para o processo erosivo. No entanto, tecnicas simples de preparo do solo, visando a captacao da agua de chuva `in situ` sao mais apropriadas aos sistemas de producao adotados pelos agricultores, e podem ser implantadas usando-se tanto a tracao mecanica quanto a tracao animal. Os sistemas de captacao de agua de chuva 'in situ'mais utilizados na regiao semi-arida brasileira sao? sulcamento pre e pos-plantio, sulcos barrados, camalhoes inclinados ou sistema W, aracao parcial e o sistema Guimaraes Duque. Neste trabalho, sao apresentadas as principais tecnicas de captacao de agua de chuva 'in situ', adequadas aos produtores do semi-arido brasileiro. |
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Palavras-Chave: |
Agricultura de sequeiro; Agua de chuva; Captacao in situ; dry farms; Natural resource; Nordeste; Northeast; Preparo do solo; Regiao semi-arida; Semi-arid region. |
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Thesagro: |
Recurso natural. |
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Thesaurus Nal: |
Brazil; tillage; water harvesting. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/124755/1/Barbosa.pdf
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Marc: |
LEADER 02424nam a2200313 a 4500
001 1134534
005 2022-08-22
008 2002 bl uuuu u00u1 u #d
100 1 $aANJOS, J. B. dos
245 $aTecnicas de captacao de agua de chuva in situ viabiliza o uso eficiente de agua para exploracao agricola no semi-arido do Nordeste do Brasil.
260 $aIn: SEMINARIO INTERNACIONAL CYTED-XVII, 2., 2002, Salvador. Um enfoque integrado para a gestao sustentavel da agua - experiencias em regioes semi-aridas: resumos. Salvador: CYTED: UFBA$c2002
520 $aNa regiao semi-arida brasileira, o regime pluviometrico anual e um fator preponderante para o sucesso da agricultura dependente de chuva, sendo a sua ma distribuicao, no tempo e no espaco, a principal responsavel pela perda de safras agricolas. O sistema tradicional de cultivo na regiao semi-arida e a semeadura em covas, no plano, com o auxilio de uma enxada, o que da origem a uma pequena depressao, capaz de armazenar certa quantidade de agua de chuva. Este sistema e aparentemente pouco agressivo ao meio ambiente, no entanto, como o solo nao foi preparado (arado), a sua superficie apresenta-se ligeiramente compactada, dificultando a infiltracao e facilitando o escoamento superficial, a que contribui para o processo erosivo. No entanto, tecnicas simples de preparo do solo, visando a captacao da agua de chuva `in situ` sao mais apropriadas aos sistemas de producao adotados pelos agricultores, e podem ser implantadas usando-se tanto a tracao mecanica quanto a tracao animal. Os sistemas de captacao de agua de chuva 'in situ'mais utilizados na regiao semi-arida brasileira sao? sulcamento pre e pos-plantio, sulcos barrados, camalhoes inclinados ou sistema W, aracao parcial e o sistema Guimaraes Duque. Neste trabalho, sao apresentadas as principais tecnicas de captacao de agua de chuva 'in situ', adequadas aos produtores do semi-arido brasileiro.
650 $aBrazil
650 $atillage
650 $awater harvesting
650 $aRecurso natural
653 $aAgricultura de sequeiro
653 $aAgua de chuva
653 $aCaptacao in situ
653 $adry farms
653 $aNatural resource
653 $aNordeste
653 $aNortheast
653 $aPreparo do solo
653 $aRegiao semi-arida
653 $aSemi-arid region
700 1 $aSILVA, M. S. L. da
700 1 $aLOPES, P. R. C.
700 1 $aGOMES, T. C. de A.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
24/02/2022 |
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Data da última atualização: |
24/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ZORTÉA, K. É. M.; ROSSI, A. A. B.; TIAGO, A. V.; CARDOSO, E. dos S.; PINTO, J. M. A.; HOOGERHEIDE, E. S. S. |
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Afiliação: |
KELLI ÉVELIN MÜLLER ZORTÉA, UNEMAT, Alta Floresta-MT; ANA APARECIDA BANDINI ROSSI, UNEMAT, Alta Floresta-MT; AUANA VICENTE TIAGO, UNEMAT, Alta Floresta-MT; ELISA DOS SANTOS CARDOSO, UNEMAT, Alta Floresta-MT; JOYCE MENDES ANDRADE PINTO, CPAMT; EULALIA SOLER SOBREIRA HOOGERHEIDE, CPAMT. |
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Título: |
Spondias mombin (Anarcadiaceae): molecular characterization and conservation. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Revista de Biología Tropical, v. 69, n. 3, p. 1023-1036, 2021. |
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ISSN: |
2215-2075 |
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DOI: |
https://doi.org/10.15517/rbt.v69i3.45810 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Introduction: The fruit of the yellow mombin (Spondias mombin L.) is notable due to its sensory and functional qualities. However, there is little knowledge regarding the genetic diversity of this species, and this would aid the implantation of the cultivation of the fruit as a crop, since current production is based on extractivism. Objective: Evaluate the diversity and genetic structure of natural populations of S. mombin in the state of Mato Grosso, Brazil, through microsatellite molecular markers in order to assist in the implementation of conservation strategies and the collection of genetic resources. Methods: A total of 139 S. mombin individuals were sampled in ten natural populations. PCR amplifications were performed with seven fluorescence-marked microsatellite primers. Genetic diversity was evaluated by the number of alleles, expected (He) and observed heterozygosity (Ho), polymorphic information content (PIC), fixation index (?), rare and exclusive alleles. The genetic structure was evaluated using AMOVA, UPGMA dendrogram and Bayesian statistical analysis. Results: 46 alleles were amplified, which had an average of 6.6 alleles per locus. He was higher than Ho and f was positive, indicating the presence of inbreeding. The PIC ranged from 0.048 to 0.700, and only two loci were poorly informative. We found 27 rare alleles and 16 unique alleles. The largest component of variation was intrapopulational (90.64 %). The estimated gene flow was 1.99, which indicates that there is no genetic isolation between populations, and justifies the FST value (0.0963). The ten populations were grouped into two groups, and two populations constituted an isolated group. The Mantel test demonstrated that the genetic structure is not related to the geographic distance between populations. Conclusion: There is genetic diversity in the populations of S. mombin, which must be conserved in situ or ex situ, due to the diversity they present and because they are promising sources for collection of germplasm. MenosAbstract: Introduction: The fruit of the yellow mombin (Spondias mombin L.) is notable due to its sensory and functional qualities. However, there is little knowledge regarding the genetic diversity of this species, and this would aid the implantation of the cultivation of the fruit as a crop, since current production is based on extractivism. Objective: Evaluate the diversity and genetic structure of natural populations of S. mombin in the state of Mato Grosso, Brazil, through microsatellite molecular markers in order to assist in the implementation of conservation strategies and the collection of genetic resources. Methods: A total of 139 S. mombin individuals were sampled in ten natural populations. PCR amplifications were performed with seven fluorescence-marked microsatellite primers. Genetic diversity was evaluated by the number of alleles, expected (He) and observed heterozygosity (Ho), polymorphic information content (PIC), fixation index (?), rare and exclusive alleles. The genetic structure was evaluated using AMOVA, UPGMA dendrogram and Bayesian statistical analysis. Results: 46 alleles were amplified, which had an average of 6.6 alleles per locus. He was higher than Ho and f was positive, indicating the presence of inbreeding. The PIC ranged from 0.048 to 0.700, and only two loci were poorly informative. We found 27 rare alleles and 16 unique alleles. The largest component of variation was intrapopulational (90.64 %). The estimated gene flow was 1.99, which indic... Mostrar Tudo |
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Thesaurus NAL: |
Conservation programs; Genetic resources; Microsatellite repeats; Variability; Yellow mombins. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/231920/1/2021-cpamt-essh-spondias-mombin-anarcadiaceae-molecular-characterization-conservation.pdf
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Marc: |
LEADER 02851naa a2200265 a 4500
001 2140386
005 2022-02-24
008 2021 bl uuuu u00u1 u #d
022 $a2215-2075
024 7 $ahttps://doi.org/10.15517/rbt.v69i3.45810$2DOI
100 1 $aZORTÉA, K. É. M.
245 $aSpondias mombin (Anarcadiaceae)$bmolecular characterization and conservation.$h[electronic resource]
260 $c2021
520 $aAbstract: Introduction: The fruit of the yellow mombin (Spondias mombin L.) is notable due to its sensory and functional qualities. However, there is little knowledge regarding the genetic diversity of this species, and this would aid the implantation of the cultivation of the fruit as a crop, since current production is based on extractivism. Objective: Evaluate the diversity and genetic structure of natural populations of S. mombin in the state of Mato Grosso, Brazil, through microsatellite molecular markers in order to assist in the implementation of conservation strategies and the collection of genetic resources. Methods: A total of 139 S. mombin individuals were sampled in ten natural populations. PCR amplifications were performed with seven fluorescence-marked microsatellite primers. Genetic diversity was evaluated by the number of alleles, expected (He) and observed heterozygosity (Ho), polymorphic information content (PIC), fixation index (?), rare and exclusive alleles. The genetic structure was evaluated using AMOVA, UPGMA dendrogram and Bayesian statistical analysis. Results: 46 alleles were amplified, which had an average of 6.6 alleles per locus. He was higher than Ho and f was positive, indicating the presence of inbreeding. The PIC ranged from 0.048 to 0.700, and only two loci were poorly informative. We found 27 rare alleles and 16 unique alleles. The largest component of variation was intrapopulational (90.64 %). The estimated gene flow was 1.99, which indicates that there is no genetic isolation between populations, and justifies the FST value (0.0963). The ten populations were grouped into two groups, and two populations constituted an isolated group. The Mantel test demonstrated that the genetic structure is not related to the geographic distance between populations. Conclusion: There is genetic diversity in the populations of S. mombin, which must be conserved in situ or ex situ, due to the diversity they present and because they are promising sources for collection of germplasm.
650 $aConservation programs
650 $aGenetic resources
650 $aMicrosatellite repeats
650 $aVariability
650 $aYellow mombins
700 1 $aROSSI, A. A. B.
700 1 $aTIAGO, A. V.
700 1 $aCARDOSO, E. dos S.
700 1 $aPINTO, J. M. A.
700 1 $aHOOGERHEIDE, E. S. S.
773 $tRevista de Biología Tropical$gv. 69, n. 3, p. 1023-1036, 2021.
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Embrapa Agrossilvipastoril (CPAMT) |
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