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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
18/11/2022 |
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Data da última atualização: |
18/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, N. M.; SANGOI, L.; MARSCHALEK, R. |
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Título: |
Tolerance of lowland rice (Oryza sativa) genotypes to heat stress at anthesis. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Agropecuária Catarinense, Florianópolis, v. 35, n. 2, p. 50-54, 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
O objetivo deste trabalho foi avaliar o efeito do estresse térmico (calor) na antese sobre o desempenho agronômico de genóti pos brasileiros modernos de arroz irrigado. As variedades SCS124 Sardo, SCS122 Miura, SCS121 CL, SCS116 Satoru, SCSBRS Tio Taka, Epagri 109 e as linhagens SC 491 ME, SC 676, SC 792, SC 806, SC 817, SC 849 foram avaliadas. Na antese, as plantas correspondentes ao tratamento de estresse por calor foram transferidas para uma câmara de crescimento por quatro dias sob temperaturas de 38°C (dia) e 30°C (noite). Em seguida, voltaram à casa de vegetação, onde permaneceram até a colheita sob 25°C aproximadamente. A esterilidade de espiguetas variou de 4,0 a 84,1%. A produti vidade variou de 10,2 a 101,2g pl-1. O estresse térmico aumentou a esterilidade das espiguetas e diminuiu a produção de grãos. As linhagens SC 817 e 806 apresentaram menor porcentagem de esterilidade de espiguetas e maior produção sob estresse de calor, sendo, portanto, genóti pos promissores para gerar culti vares tolerantes a altas temperaturas na antese. |
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Thesagro: |
Antese; Esterilidade; Estresse por calor; Oryza sativa; Produtividade. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01710naa a2200205 a 4500
001 1132776
005 2022-11-18
008 2022 bl uuuu u00u1 u #d
100 1 $aSOUZA, N. M.
245 $aTolerance of lowland rice (Oryza sativa) genotypes to heat stress at anthesis.$h[electronic resource]
260 $c2022
520 $aO objetivo deste trabalho foi avaliar o efeito do estresse térmico (calor) na antese sobre o desempenho agronômico de genóti pos brasileiros modernos de arroz irrigado. As variedades SCS124 Sardo, SCS122 Miura, SCS121 CL, SCS116 Satoru, SCSBRS Tio Taka, Epagri 109 e as linhagens SC 491 ME, SC 676, SC 792, SC 806, SC 817, SC 849 foram avaliadas. Na antese, as plantas correspondentes ao tratamento de estresse por calor foram transferidas para uma câmara de crescimento por quatro dias sob temperaturas de 38°C (dia) e 30°C (noite). Em seguida, voltaram à casa de vegetação, onde permaneceram até a colheita sob 25°C aproximadamente. A esterilidade de espiguetas variou de 4,0 a 84,1%. A produti vidade variou de 10,2 a 101,2g pl-1. O estresse térmico aumentou a esterilidade das espiguetas e diminuiu a produção de grãos. As linhagens SC 817 e 806 apresentaram menor porcentagem de esterilidade de espiguetas e maior produção sob estresse de calor, sendo, portanto, genóti pos promissores para gerar culti vares tolerantes a altas temperaturas na antese.
650 $aAntese
650 $aEsterilidade
650 $aEstresse por calor
650 $aOryza sativa
650 $aProdutividade
700 1 $aSANGOI, L.
700 1 $aMARSCHALEK, R.
773 $tAgropecuária Catarinense, Florianópolis$gv. 35, n. 2, p. 50-54, 2022.
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Epagri-Sede (Epagri-Sede) |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
25/05/2020 |
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Data da última atualização: |
25/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
GALLON, C.; MARTELLO, R. H.; COZZER, G.; REZENDE, C. A. L.; CALISTO, J. F. F.; FLOSS, P. A.; OLIVEIRA, J. V.; REZENDE, R. S.; MAGRO, J. D.; ALBENY-SIMÕES, D. |
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Título: |
Biological activity of Eucalyptus essential oils on mosquito larval mortality. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Entomologia Experimentalis et Applicata, Edimburgo, v. 168, n. 5, p. 1-9, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
The mosquito Aedes aegypti L. (Diptera: Culicidae) is a vector of arboviral diseases such as dengue
fever. Currently, the main approach to mosquito control is the application of synthetic insecticides,
which can lead to negative environmental impacts and insecticide resistance in mosquito populations.
As such, there has been increased interest in developing alternative methods for control of vector
populations such as utilizing plant compounds that act as larvicides. The aim of this work is to
evaluate the effectiveness of Eucalyptus sp. (Myrtaceae) essential oils for control of Ae. aegypti larvae.
The essential oils of seven Eucalyptus species and hybrids were extracted by hydrodistillation and analyzed
by gas chromatography coupled to mass spectrometry. The essential oils were further diluted in
water with acetone (0.40%) at the following concentrations: 100, 50, 25, and 10 lg ml
1. Mortality trials were conducted in plastic containers with a solution of ultrapure water and 200 ll of diluted oil
for a total volume of 50 ml per treatment. The experiments for each Eucalyptus species/hybrid and
concentration were performed in triplicate, using a control containing only water and acetone.
Twenty larvae were added to each container and mortality was recorded at 1, 2, 4, and 24 h. The
Eucalyptus essential oils showed larvicidal activity in most of the evaluated concentrations, mainly at
50 and 100 lg ml 1. Eucalyptus benthamiiMaiden & Cambage and the hybrid Urograndis displayed
the highest larvicidal potential (100% at 24 h) in the 100 lg ml 1 treatment. Larval mortality of Ae. egypti showed a positive correlation with the compounds c-, o-cymol, o-cymene, terpineol, 3-dodecylfuran- 2,5-dione, a-pinene, globulol, and ledol. The most abundant compounds identified in the essential oils were 1,8-cineole and a-pinene. These results highlight the potential of using Eucalyptus
essential oils for the isolation of natural larvicidal products. MenosThe mosquito Aedes aegypti L. (Diptera: Culicidae) is a vector of arboviral diseases such as dengue
fever. Currently, the main approach to mosquito control is the application of synthetic insecticides,
which can lead to negative environmental impacts and insecticide resistance in mosquito populations.
As such, there has been increased interest in developing alternative methods for control of vector
populations such as utilizing plant compounds that act as larvicides. The aim of this work is to
evaluate the effectiveness of Eucalyptus sp. (Myrtaceae) essential oils for control of Ae. aegypti larvae.
The essential oils of seven Eucalyptus species and hybrids were extracted by hydrodistillation and analyzed
by gas chromatography coupled to mass spectrometry. The essential oils were further diluted in
water with acetone (0.40%) at the following concentrations: 100, 50, 25, and 10 lg ml
1. Mortality trials were conducted in plastic containers with a solution of ultrapure water and 200 ll of diluted oil
for a total volume of 50 ml per treatment. The experiments for each Eucalyptus species/hybrid and
concentration were performed in triplicate, using a control containing only water and acetone.
Twenty larvae were added to each container and mortality was recorded at 1, 2, 4, and 24 h. The
Eucalyptus essential oils showed larvicidal activity in most of the evaluated concentrations, mainly at
50 and 100 lg ml 1. Eucalyptus benthamiiMaiden & Cambage and the hybrid Urograndis displayed
... Mostrar Tudo |
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Palavras-Chave: |
Aedes aegypti; Culicidae; Diptera; larvicide activity; Myrtaceae; natural compounds; vector control. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02853naa a2200313 a 4500
001 1129650
005 2020-05-25
008 2020 bl uuuu u00u1 u #d
100 1 $aGALLON, C.
245 $aBiological activity of Eucalyptus essential oils on mosquito larval mortality.$h[electronic resource]
260 $c2020
520 $aThe mosquito Aedes aegypti L. (Diptera: Culicidae) is a vector of arboviral diseases such as dengue fever. Currently, the main approach to mosquito control is the application of synthetic insecticides, which can lead to negative environmental impacts and insecticide resistance in mosquito populations. As such, there has been increased interest in developing alternative methods for control of vector populations such as utilizing plant compounds that act as larvicides. The aim of this work is to evaluate the effectiveness of Eucalyptus sp. (Myrtaceae) essential oils for control of Ae. aegypti larvae. The essential oils of seven Eucalyptus species and hybrids were extracted by hydrodistillation and analyzed by gas chromatography coupled to mass spectrometry. The essential oils were further diluted in water with acetone (0.40%) at the following concentrations: 100, 50, 25, and 10 lg ml 1. Mortality trials were conducted in plastic containers with a solution of ultrapure water and 200 ll of diluted oil for a total volume of 50 ml per treatment. The experiments for each Eucalyptus species/hybrid and concentration were performed in triplicate, using a control containing only water and acetone. Twenty larvae were added to each container and mortality was recorded at 1, 2, 4, and 24 h. The Eucalyptus essential oils showed larvicidal activity in most of the evaluated concentrations, mainly at 50 and 100 lg ml 1. Eucalyptus benthamiiMaiden & Cambage and the hybrid Urograndis displayed the highest larvicidal potential (100% at 24 h) in the 100 lg ml 1 treatment. Larval mortality of Ae. egypti showed a positive correlation with the compounds c-, o-cymol, o-cymene, terpineol, 3-dodecylfuran- 2,5-dione, a-pinene, globulol, and ledol. The most abundant compounds identified in the essential oils were 1,8-cineole and a-pinene. These results highlight the potential of using Eucalyptus essential oils for the isolation of natural larvicidal products.
653 $aAedes aegypti
653 $aCulicidae
653 $aDiptera
653 $alarvicide activity
653 $aMyrtaceae
653 $anatural compounds
653 $avector control
700 1 $aMARTELLO, R. H.
700 1 $aCOZZER, G.
700 1 $aREZENDE, C. A. L.
700 1 $aCALISTO, J. F. F.
700 1 $aFLOSS, P. A.
700 1 $aOLIVEIRA, J. V.
700 1 $aREZENDE, R. S.
700 1 $aMAGRO, J. D.
700 1 $aALBENY-SIMÕES, D.
773 $tEntomologia Experimentalis et Applicata, Edimburgo$gv. 168, n. 5, p. 1-9, 2020.
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