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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
11/06/1999 |
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Data da última atualização: |
12/06/2018 |
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Autoria: |
RIBEIRO, F. E. |
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Título: |
Estudo comparativo entre dois metodos de determinacao da capacidade de campo. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Teresina: UFPI, 1985. |
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Páginas: |
12 p. |
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Idioma: |
Português |
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Notas: |
Dissertacao apresentada a Universidade Federal do Piaui, como um dos requisitos para obtencao do grau de Engenheiro Agronomo. |
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Conteúdo: |
O objetivo do estudo foi comparar resultados obtidos na determinacao da "capacidade de campo" pelos metodos de irrigacao superficial de colunas de solo e o da "panela de pressao" a uma tensao de succao de 1/3 de atmosfera, sendo o ultimo tomado como referencia. O solo utilizado foi um Latossolo Amarelo A Fraco de textura media. Os resultados obtidos mostraram que o tratamento com o tempo de 72 horas apos o umedecimento da amostra, foi o que apresentou uma aproximacao mais adequada, o que sugere o uso deste metodo na estimativa da "capacidade de campo" para este tipo de solo. |
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Palavras-Chave: |
Capacidade de campo. |
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Thesagro: |
Água de Irrigação; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01141nam a2200169 a 4500
001 1055429
005 2018-06-12
008 1985 bl uuuu m 00u1 u #d
100 1 $aRIBEIRO, F. E.
245 $aEstudo comparativo entre dois metodos de determinacao da capacidade de campo.
260 $aTeresina: UFPI$c1985
300 $a12 p.
500 $aDissertacao apresentada a Universidade Federal do Piaui, como um dos requisitos para obtencao do grau de Engenheiro Agronomo.
520 $aO objetivo do estudo foi comparar resultados obtidos na determinacao da "capacidade de campo" pelos metodos de irrigacao superficial de colunas de solo e o da "panela de pressao" a uma tensao de succao de 1/3 de atmosfera, sendo o ultimo tomado como referencia. O solo utilizado foi um Latossolo Amarelo A Fraco de textura media. Os resultados obtidos mostraram que o tratamento com o tempo de 72 horas apos o umedecimento da amostra, foi o que apresentou uma aproximacao mais adequada, o que sugere o uso deste metodo na estimativa da "capacidade de campo" para este tipo de solo.
650 $aÁgua de Irrigação
650 $aSolo
653 $aCapacidade de campo
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Embrapa Meio-Norte (CPAMN) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/01/2024 |
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Data da última atualização: |
17/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
NEIVA, M. M.; GODOY, S. M.; FELICIANO, D. C.; SILVA, J. F. M.; BINNECK, E.; ROSA, R. da; MURÚA, M. G.; SPECHT, A.; SÓSA-GOMEZ, D. R. |
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Afiliação: |
MARIANA M. NEIVA; SARA M. DE GODOY; DANIELE C. FELICIANO; JOAO F. MARQUES SILVA; ELISEU BINNECK, CNPSO; RENATA DA ROSA; MARÍA G. MURÚA; ALEXANDRE SPECHT, Cenargen; DANIEL RICARDO SOSA GOMEZ, CNPSO. |
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Título: |
Development of microsatellite markers and genetic diversity of the velvetbean caterpillar Anticarsia gemmatalis(Lepidoptera: Erebidae). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Austral Entomology, v. 62, p. 345-459, 2023. |
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DOI: |
10.1111/aen.12648 |
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Idioma: |
Inglês |
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Conteúdo: |
The velvetbean caterpillar Anticarsia gemmatalis (VBC) is widely distributed in the Americas and causes severe damage to soybean foliage. This insect presents high ecological plasticity, a feature that is of great importance to understand its genetic diversity and potential gene flow to assist in resistance management strategies. With this objective, we developed microsatellite markers for VBC and applied them to five populations from Brazil. Nine primers were polymorphic, with high values of polymorphic information content (PIC > 0.5), and 134 alleles were identified in 155 individuals. These primers indicated deviation from the Hardy–Weinberg equilibrium for all populations (observed heterozygosity, Ho = 0.48, expected heterozygosity, He = 0.76), with moderate to high levels of genetic diversity and a moderate fixation index (FST = 0.14) among the populations. Analysis of population structure indicated the formation of two principal clusters. The northern one can be divided into the two populations that formed the cluster, with high genetic differentiation between them. The other cluster is formed by three populations, and we found evidence of low gene flow between them in the south–north direction, indicating that these populations may be migratory in certain conditions. These findings indicate that the designed primers were effective in describing the genetic diversity of VBC, with major implications for integrated pest management. Given the little gene flow and the high genetic diversity of populations, they present great potential to become resistant to control practices, which can lead to increased management costs. MenosThe velvetbean caterpillar Anticarsia gemmatalis (VBC) is widely distributed in the Americas and causes severe damage to soybean foliage. This insect presents high ecological plasticity, a feature that is of great importance to understand its genetic diversity and potential gene flow to assist in resistance management strategies. With this objective, we developed microsatellite markers for VBC and applied them to five populations from Brazil. Nine primers were polymorphic, with high values of polymorphic information content (PIC > 0.5), and 134 alleles were identified in 155 individuals. These primers indicated deviation from the Hardy–Weinberg equilibrium for all populations (observed heterozygosity, Ho = 0.48, expected heterozygosity, He = 0.76), with moderate to high levels of genetic diversity and a moderate fixation index (FST = 0.14) among the populations. Analysis of population structure indicated the formation of two principal clusters. The northern one can be divided into the two populations that formed the cluster, with high genetic differentiation between them. The other cluster is formed by three populations, and we found evidence of low gene flow between them in the south–north direction, indicating that these populations may be migratory in certain conditions. These findings indicate that the designed primers were effective in describing the genetic diversity of VBC, with major implications for integrated pest management. Given the little gene flow and the high... Mostrar Tudo |
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Thesagro: |
Inseto; Praga de Planta; Soja. |
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Thesaurus NAL: |
Pest control; Soybeans. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02508naa a2200289 a 4500
001 2160877
005 2024-01-17
008 2023 bl uuuu u00u1 u #d
024 7 $a10.1111/aen.12648$2DOI
100 1 $aNEIVA, M. M.
245 $aDevelopment of microsatellite markers and genetic diversity of the velvetbean caterpillar Anticarsia gemmatalis(Lepidoptera$bErebidae).$h[electronic resource]
260 $c2023
520 $aThe velvetbean caterpillar Anticarsia gemmatalis (VBC) is widely distributed in the Americas and causes severe damage to soybean foliage. This insect presents high ecological plasticity, a feature that is of great importance to understand its genetic diversity and potential gene flow to assist in resistance management strategies. With this objective, we developed microsatellite markers for VBC and applied them to five populations from Brazil. Nine primers were polymorphic, with high values of polymorphic information content (PIC > 0.5), and 134 alleles were identified in 155 individuals. These primers indicated deviation from the Hardy–Weinberg equilibrium for all populations (observed heterozygosity, Ho = 0.48, expected heterozygosity, He = 0.76), with moderate to high levels of genetic diversity and a moderate fixation index (FST = 0.14) among the populations. Analysis of population structure indicated the formation of two principal clusters. The northern one can be divided into the two populations that formed the cluster, with high genetic differentiation between them. The other cluster is formed by three populations, and we found evidence of low gene flow between them in the south–north direction, indicating that these populations may be migratory in certain conditions. These findings indicate that the designed primers were effective in describing the genetic diversity of VBC, with major implications for integrated pest management. Given the little gene flow and the high genetic diversity of populations, they present great potential to become resistant to control practices, which can lead to increased management costs.
650 $aPest control
650 $aSoybeans
650 $aInseto
650 $aPraga de Planta
650 $aSoja
700 1 $aGODOY, S. M.
700 1 $aFELICIANO, D. C.
700 1 $aSILVA, J. F. M.
700 1 $aBINNECK, E.
700 1 $aROSA, R. da
700 1 $aMURÚA, M. G.
700 1 $aSPECHT, A.
700 1 $aSÓSA-GOMEZ, D. R.
773 $tAustral Entomology$gv. 62, p. 345-459, 2023.
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