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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
28/07/2015 |
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Data da última atualização: |
28/07/2015 |
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Autoria: |
MILAN, P. A. |
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Título: |
Efeitos imediatos e residuais no superfosfato triplo em solos do Rio Grande do Sul. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Porto Alegre : UFRGS, 1981. |
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Páginas: |
88p. |
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Idioma: |
Português |
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Notas: |
Dissertação Mestrado. |
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Conteúdo: |
A influencia de caracteristicas fisicas e quimicas de solos na solubilidade do fosforo (P) apos sua aplicacao nos solos como superfosfato triplo (ST) e nos seus efeitos imediatos e residuais sobre o rendimento de materia seca e absorcao de P pelo trigo, foram avaliadas atraves de experimentos em laboratorio e em casa de vegetacao com 14 solos do RS. O ST foi aplicado nos solos em granulos, seis meses antes e por ocasiao da semeadura do trigo, que foi cultivado em vasos durante 50 dias. Os solos dos tratamentos residuais foram completamente revolvidos por ocasiao da semeadura. A quantidade de P aplicada na semeadura que proporcionou 90% do rendimento maximo variou de 35 a 129 mg P/vaso. A caracteristica dos solos que mais se correlacionou com este valores foi o teor de Al extraido com citrato-ditionito-bicabornato. O efeito residual do ST, medido como equivalente em ST aplicado na semeadura (EqSTAS), variou de 21 a 63% para o rendimento de materia seca. Nenhuma das caracteristicas dos solos, isoladamente ou em combinacao, apresentaram alta correlacao com os EqSTAS. Os resultados de absorcao de P pelo trigo seguiram tendencias semelhantes aos de rendimento de materia seca. |
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Palavras-Chave: |
Absorcao; Absorption; Agricultura; Brasil; Brazil; Ciência do solo; Fertilidade; Fertilizacao; Fertilization; Fertilizer application; Fosforo; Phosphates; Phosphorus; Quimica do solo; Residual; Residual effect; Resíduo; Rio Grande do Sul; Soil; Soil chemicophysical properties; Solo; Superfosfato triplo; Trigo; Triticum aestivum; Wheats. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02277nam a2200433 a 4500
001 1007174
005 2015-07-28
008 1981 bl uuuu u0uu1 u #d
100 1 $aMILAN, P. A.
245 $aEfeitos imediatos e residuais no superfosfato triplo em solos do Rio Grande do Sul.
260 $aPorto Alegre : UFRGS$c1981
300 $a88p.
500 $aDissertação Mestrado.
520 $aA influencia de caracteristicas fisicas e quimicas de solos na solubilidade do fosforo (P) apos sua aplicacao nos solos como superfosfato triplo (ST) e nos seus efeitos imediatos e residuais sobre o rendimento de materia seca e absorcao de P pelo trigo, foram avaliadas atraves de experimentos em laboratorio e em casa de vegetacao com 14 solos do RS. O ST foi aplicado nos solos em granulos, seis meses antes e por ocasiao da semeadura do trigo, que foi cultivado em vasos durante 50 dias. Os solos dos tratamentos residuais foram completamente revolvidos por ocasiao da semeadura. A quantidade de P aplicada na semeadura que proporcionou 90% do rendimento maximo variou de 35 a 129 mg P/vaso. A caracteristica dos solos que mais se correlacionou com este valores foi o teor de Al extraido com citrato-ditionito-bicabornato. O efeito residual do ST, medido como equivalente em ST aplicado na semeadura (EqSTAS), variou de 21 a 63% para o rendimento de materia seca. Nenhuma das caracteristicas dos solos, isoladamente ou em combinacao, apresentaram alta correlacao com os EqSTAS. Os resultados de absorcao de P pelo trigo seguiram tendencias semelhantes aos de rendimento de materia seca.
653 $aAbsorcao
653 $aAbsorption
653 $aAgricultura
653 $aBrasil
653 $aBrazil
653 $aCiência do solo
653 $aFertilidade
653 $aFertilizacao
653 $aFertilization
653 $aFertilizer application
653 $aFosforo
653 $aPhosphates
653 $aPhosphorus
653 $aQuimica do solo
653 $aResidual
653 $aResidual effect
653 $aResíduo
653 $aRio Grande do Sul
653 $aSoil
653 $aSoil chemicophysical properties
653 $aSolo
653 $aSuperfosfato triplo
653 $aTrigo
653 $aTriticum aestivum
653 $aWheats
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
09/09/2020 |
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Data da última atualização: |
09/09/2020 |
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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: |
DUARTE, M. F.; PEREIRA-CARVALHO, R. de C.; REIS, L. de N. A. dos; ROJAS, M. J.; GILBERTSON, R.; COSTA, H.; BOITEUX, L. S.; FONSECA, M. E. N. |
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Afiliação: |
Macaria Ferreira Duarte, UnB; Rita de Cássia Pereira Carvalho, UnB; Luciane de Nazaré Almeida dos Reis, UnB; Maria J. Rojas, UC-DAVIS; Robert Gilbertson, UC-DAVIS; Helcio Costa, Incaper; Leonardo Silva Boiteux, EMBRAPA; Maria Esther N. Fonseca, EMBRAPA. |
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Título: |
Natural Infection of Tomatoes (Solanum lycopersicum) by Euphorbia yellow mosaic virus Isolates across Four Brazilian States. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Plant Disease, set. 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Severe yield losses induced by a complex of whitefly?transmitted Begomovirus species (family Geminiviridae) have been reported in tomatoes in Brazil (Reis et al. 2020). Nine isolates were obtained from tomato plants exhibiting begomovirus?like symptoms (viz. apical and interveinal chlorosis, yellow spots, and stunting) during independent field surveys: one isolate in Sumaré, São Paulo?SP State (isolate SP?066) in 2001, two in Serra Negra, Minas Gerais?MG (MG?012 and MG?016) in 2002, five in Caxias do Sul, Rio Grande do Sul?RS (RS?039, RS?045, RS?046, RS?047 and RS?058) in 2011 and one in Domingos Martins, Espírito Santo?ES (ES?148) in 2016. Disease incidence across all sampled fields ranged from 30% (in Domingos Martins?ES) to 90% in Sumaré?SP. Total DNA extraction was done by a modified CTAB method (Boiteux et al., 1999). Begomovirus infection was confirmed in all isolates by selective amplification of viral DNA?A segments using the primer pairs ?PAL1v1978 / PAR1c496? (Rojas et al., 1993) and ?BegomoAFor1? / ?BegomoARev1? (Ha et al., 2006), which produce two large and non?overlapping segments (≈1120 bp and ≈1205 bp, respectively). These PCR amplicons were initially characterized via direct Sanger dideoxy sequencing at CNPH. BLASTn analysis of the partial DNA?A genomes of these nine isolates indicated identity levels of 95?97% to three euphorbia yellow mosaic virus (EuYMV) reference isolates (= KY559532, JF756674, and KY559583) found infecting the weed Euphorbia heterophylla L. The entire DNA?A (2,609 nts = MN746971) and DNA?B (2,579 nts = MN746970) components of the MG?016 isolate were obtained via high?performance sequencing using Illumina HiSeq 2500 system (Macrogen Inc., South Korea). Sequences were assembled with the CLC Genomics Workbench program 10. Contigs were validated by BLASTx and BLASTn and compared to the ssDNA virus database at NCBI (www.ncbi.nlm.nih.gov). The fully?characterized MG?016 isolate displayed identity levels ranging from 97 to 99% to the EuYMV reference isolates as well as similar genomic features such as the conserved TATA box, nonanucleotide, and iterons (that were in agreement with a cognate nature of the DNA?A and DNA?B components). A partial sequence of the DNA?B genome was also obtained for the MG?012 isolate (MT7831942). The isolates MG?012 and MG?016 were found in mixed infections with tomato severe rugose virus (ToSRV) and tomato golden vein virus (TGVV), respectively. In addition, the complete DNA?A genomes of ES?148 (MN746972) and SP?066 (MN782438) were also obtained via a combination of primer walking and Sanger dideoxy sequencing, displaying 96?98% identity to EuYMV isolates. To our knowledge, this is the first report of multiple and independent events of natural infection of tomatoes by EuYMV isolates. Our results confirm the natural host status of tomatoes to EuYMV isolates as indicated in previous infectivity assays using biolistic inoculation (Barreto et al., 2013). The weed E. heterophylla is widely disseminated and very often present within tomato fields due to its higher levels of tolerance to the major herbicide (metribuzin) employed in this crop. Therefore, this weed may act as a persistent reservoir of tomato?infecting EuYMV isolates, which may allow the selection of viral populations potentially more adapted to this vegetable crop. MenosSevere yield losses induced by a complex of whitefly?transmitted Begomovirus species (family Geminiviridae) have been reported in tomatoes in Brazil (Reis et al. 2020). Nine isolates were obtained from tomato plants exhibiting begomovirus?like symptoms (viz. apical and interveinal chlorosis, yellow spots, and stunting) during independent field surveys: one isolate in Sumaré, São Paulo?SP State (isolate SP?066) in 2001, two in Serra Negra, Minas Gerais?MG (MG?012 and MG?016) in 2002, five in Caxias do Sul, Rio Grande do Sul?RS (RS?039, RS?045, RS?046, RS?047 and RS?058) in 2011 and one in Domingos Martins, Espírito Santo?ES (ES?148) in 2016. Disease incidence across all sampled fields ranged from 30% (in Domingos Martins?ES) to 90% in Sumaré?SP. Total DNA extraction was done by a modified CTAB method (Boiteux et al., 1999). Begomovirus infection was confirmed in all isolates by selective amplification of viral DNA?A segments using the primer pairs ?PAL1v1978 / PAR1c496? (Rojas et al., 1993) and ?BegomoAFor1? / ?BegomoARev1? (Ha et al., 2006), which produce two large and non?overlapping segments (≈1120 bp and ≈1205 bp, respectively). These PCR amplicons were initially characterized via direct Sanger dideoxy sequencing at CNPH. BLASTn analysis of the partial DNA?A genomes of these nine isolates indicated identity levels of 95?97% to three euphorbia yellow mosaic virus (EuYMV) reference isolates (= KY559532, JF756674, and KY559583) found infecting the weed Euphorbia ... Mostrar Tudo |
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Thesagro: |
Doença de Planta; Erva Daninha; Mosaico; Tomate. |
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Thesaurus NAL: |
Begomovirus. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/4073/1/natural-infection-tomatoes-costa.pdf
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Marc: |
LEADER 04125naa a2200265 a 4500
001 1022277
005 2020-09-09
008 2020 bl uuuu u00u1 u #d
100 1 $aDUARTE, M. F.
245 $aNatural Infection of Tomatoes (Solanum lycopersicum) by Euphorbia yellow mosaic virus Isolates across Four Brazilian States.$h[electronic resource]
260 $c2020
520 $aSevere yield losses induced by a complex of whitefly?transmitted Begomovirus species (family Geminiviridae) have been reported in tomatoes in Brazil (Reis et al. 2020). Nine isolates were obtained from tomato plants exhibiting begomovirus?like symptoms (viz. apical and interveinal chlorosis, yellow spots, and stunting) during independent field surveys: one isolate in Sumaré, São Paulo?SP State (isolate SP?066) in 2001, two in Serra Negra, Minas Gerais?MG (MG?012 and MG?016) in 2002, five in Caxias do Sul, Rio Grande do Sul?RS (RS?039, RS?045, RS?046, RS?047 and RS?058) in 2011 and one in Domingos Martins, Espírito Santo?ES (ES?148) in 2016. Disease incidence across all sampled fields ranged from 30% (in Domingos Martins?ES) to 90% in Sumaré?SP. Total DNA extraction was done by a modified CTAB method (Boiteux et al., 1999). Begomovirus infection was confirmed in all isolates by selective amplification of viral DNA?A segments using the primer pairs ?PAL1v1978 / PAR1c496? (Rojas et al., 1993) and ?BegomoAFor1? / ?BegomoARev1? (Ha et al., 2006), which produce two large and non?overlapping segments (≈1120 bp and ≈1205 bp, respectively). These PCR amplicons were initially characterized via direct Sanger dideoxy sequencing at CNPH. BLASTn analysis of the partial DNA?A genomes of these nine isolates indicated identity levels of 95?97% to three euphorbia yellow mosaic virus (EuYMV) reference isolates (= KY559532, JF756674, and KY559583) found infecting the weed Euphorbia heterophylla L. The entire DNA?A (2,609 nts = MN746971) and DNA?B (2,579 nts = MN746970) components of the MG?016 isolate were obtained via high?performance sequencing using Illumina HiSeq 2500 system (Macrogen Inc., South Korea). Sequences were assembled with the CLC Genomics Workbench program 10. Contigs were validated by BLASTx and BLASTn and compared to the ssDNA virus database at NCBI (www.ncbi.nlm.nih.gov). The fully?characterized MG?016 isolate displayed identity levels ranging from 97 to 99% to the EuYMV reference isolates as well as similar genomic features such as the conserved TATA box, nonanucleotide, and iterons (that were in agreement with a cognate nature of the DNA?A and DNA?B components). A partial sequence of the DNA?B genome was also obtained for the MG?012 isolate (MT7831942). The isolates MG?012 and MG?016 were found in mixed infections with tomato severe rugose virus (ToSRV) and tomato golden vein virus (TGVV), respectively. In addition, the complete DNA?A genomes of ES?148 (MN746972) and SP?066 (MN782438) were also obtained via a combination of primer walking and Sanger dideoxy sequencing, displaying 96?98% identity to EuYMV isolates. To our knowledge, this is the first report of multiple and independent events of natural infection of tomatoes by EuYMV isolates. Our results confirm the natural host status of tomatoes to EuYMV isolates as indicated in previous infectivity assays using biolistic inoculation (Barreto et al., 2013). The weed E. heterophylla is widely disseminated and very often present within tomato fields due to its higher levels of tolerance to the major herbicide (metribuzin) employed in this crop. Therefore, this weed may act as a persistent reservoir of tomato?infecting EuYMV isolates, which may allow the selection of viral populations potentially more adapted to this vegetable crop.
650 $aBegomovirus
650 $aDoença de Planta
650 $aErva Daninha
650 $aMosaico
650 $aTomate
700 1 $aPEREIRA-CARVALHO, R. de C.
700 1 $aREIS, L. de N. A. dos
700 1 $aROJAS, M. J.
700 1 $aGILBERTSON, R.
700 1 $aCOSTA, H.
700 1 $aBOITEUX, L. S.
700 1 $aFONSECA, M. E. N.
773 $tPlant Disease, set. 2020.
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