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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/11/2023 |
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Data da última atualização: |
28/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CORREIA, N. M. |
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Afiliação: |
NUBIA MARIA CORREIA, CPAC. |
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Título: |
Interference of glyphosate-resistant conyza sumatrensis in soybean crops in Central Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Advances in weed science, v. 41, e020230071, p. 1-11, 2023. |
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Páginas: |
p. 1-11. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleabane plant densities of 13 to 23 plants m-2 at the soybean sowing did not interfere with the crop establishment and development. MenosAbstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleaba... Mostrar Tudo |
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Thesagro: |
Cerrado; Erva Daninha; Plantio Direto; Resistência; Soja. |
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Thesaurus Nal: |
Soybeans. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158809/1/Nubia-interference-of-glyphosate-resistant-cozyza.pdf
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Marc: |
LEADER 02218naa a2200205 a 4500
001 2158809
005 2023-11-28
008 2023 bl uuuu u00u1 u #d
100 1 $aCORREIA, N. M.
245 $aInterference of glyphosate-resistant conyza sumatrensis in soybean crops in Central Brazil.$h[electronic resource]
260 $c2023
300 $ap. 1-11.
520 $aAbstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleabane plant densities of 13 to 23 plants m-2 at the soybean sowing did not interfere with the crop establishment and development.
650 $aSoybeans
650 $aCerrado
650 $aErva Daninha
650 $aPlantio Direto
650 $aResistência
650 $aSoja
773 $tAdvances in weed science$gv. 41, e020230071, p. 1-11, 2023.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
13/03/2023 |
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Data da última atualização: |
13/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
SANTOS-TIERNO, R.; GARCIA, R.; FONSECA, E.; FALEIRO, F. G.; MOREIRA, D.; PACHECO, G.; MANSUR, E. |
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Afiliação: |
RAPHAELA SANTOS-TIERNO; RENATA GARCIA; EDUARDO FONSECA; FABIO GELAPE FALEIRO, CPAC; DAVYSON MOREIRA; GEORGIA PACHECO; ELISABETH MANSUR. |
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Título: |
Flavonoid content and antioxidant potential of leaf extracts of Passiflora setacea cv BRS Pérola do Cerrado, a new wild passion fruit cultivar. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Medicinal Plants Research, v. 16, n. 2, p. 26-34, 2022. |
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Páginas: |
p. 26-34 |
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Idioma: |
Inglês |
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Conteúdo: |
Passiflora setacea D.C. is a wild species native to the Brazilian Cerrado, with agronomic and medicinal potentials. The cultivar BRS Pérola do Cerrado is the first registered and protected cultivar of a wild Passiflora and has become an alternative to the passion fruit market due to its desirable characteristics for food, ornamental and pharmaceutic industries. Since plant tissue culture techniques are considered important tools for large-scale production of plants and bioactive compounds, the goal of this work was to evaluate the flavonoid content and the antioxidant potential of hydroethanolic leaf extracts from in vivo and micropropagated plants of this new cultivar. Phytochemical analysis was performed by HPLCUV-ESI-MS/TOF. Antioxidant activity was evaluated by the DPPH and the iron-chelating assays. The activities of antioxidant enzymes catalase, superoxide dismutase and ascorbate peroxidase (CAT, SOD and APX) were also determined. Two di-C-glucosyl flavonoids derivatives from apigenin were registered as major constituents in both leaf extracts analyzed and were identified as vicenin-2 and schaftoside. Despite the low antioxidant potential observed by the DPPH assay, leaf extracts from both in vivo and micropropagated plants showed high chelating capacity. Although no differences in the activity of SOD and CAT were observed, the specific activity of APX was increased in leaf extracts of micropropagated plants. These results suggest that in vitro plants can be used as an alternative for flavonoid production from cultivar BRS Pérola do Cerrado. MenosPassiflora setacea D.C. is a wild species native to the Brazilian Cerrado, with agronomic and medicinal potentials. The cultivar BRS Pérola do Cerrado is the first registered and protected cultivar of a wild Passiflora and has become an alternative to the passion fruit market due to its desirable characteristics for food, ornamental and pharmaceutic industries. Since plant tissue culture techniques are considered important tools for large-scale production of plants and bioactive compounds, the goal of this work was to evaluate the flavonoid content and the antioxidant potential of hydroethanolic leaf extracts from in vivo and micropropagated plants of this new cultivar. Phytochemical analysis was performed by HPLCUV-ESI-MS/TOF. Antioxidant activity was evaluated by the DPPH and the iron-chelating assays. The activities of antioxidant enzymes catalase, superoxide dismutase and ascorbate peroxidase (CAT, SOD and APX) were also determined. Two di-C-glucosyl flavonoids derivatives from apigenin were registered as major constituents in both leaf extracts analyzed and were identified as vicenin-2 and schaftoside. Despite the low antioxidant potential observed by the DPPH assay, leaf extracts from both in vivo and micropropagated plants showed high chelating capacity. Although no differences in the activity of SOD and CAT were observed, the specific activity of APX was increased in leaf extracts of micropropagated plants. These results suggest that in vitro plants can be used as an... Mostrar Tudo |
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Palavras-Chave: |
Análise fitoquímica; Extratos de folhas; Passiflora setacea; Potencial antioxidante; Teor de flavonoide. |
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Thesagro: |
Flavonóide; Maracujá; Passifloraceae. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152283/1/Fabio-Faleiro-Flavonoid-content-and-antioxidant.pdf
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Marc: |
LEADER 02497naa a2200301 a 4500
001 2152283
005 2023-03-13
008 2022 bl uuuu u00u1 u #d
100 1 $aSANTOS-TIERNO, R.
245 $aFlavonoid content and antioxidant potential of leaf extracts of Passiflora setacea cv BRS Pérola do Cerrado, a new wild passion fruit cultivar.$h[electronic resource]
260 $c2022
300 $ap. 26-34
520 $aPassiflora setacea D.C. is a wild species native to the Brazilian Cerrado, with agronomic and medicinal potentials. The cultivar BRS Pérola do Cerrado is the first registered and protected cultivar of a wild Passiflora and has become an alternative to the passion fruit market due to its desirable characteristics for food, ornamental and pharmaceutic industries. Since plant tissue culture techniques are considered important tools for large-scale production of plants and bioactive compounds, the goal of this work was to evaluate the flavonoid content and the antioxidant potential of hydroethanolic leaf extracts from in vivo and micropropagated plants of this new cultivar. Phytochemical analysis was performed by HPLCUV-ESI-MS/TOF. Antioxidant activity was evaluated by the DPPH and the iron-chelating assays. The activities of antioxidant enzymes catalase, superoxide dismutase and ascorbate peroxidase (CAT, SOD and APX) were also determined. Two di-C-glucosyl flavonoids derivatives from apigenin were registered as major constituents in both leaf extracts analyzed and were identified as vicenin-2 and schaftoside. Despite the low antioxidant potential observed by the DPPH assay, leaf extracts from both in vivo and micropropagated plants showed high chelating capacity. Although no differences in the activity of SOD and CAT were observed, the specific activity of APX was increased in leaf extracts of micropropagated plants. These results suggest that in vitro plants can be used as an alternative for flavonoid production from cultivar BRS Pérola do Cerrado.
650 $aFlavonóide
650 $aMaracujá
650 $aPassifloraceae
653 $aAnálise fitoquímica
653 $aExtratos de folhas
653 $aPassiflora setacea
653 $aPotencial antioxidante
653 $aTeor de flavonoide
700 1 $aGARCIA, R.
700 1 $aFONSECA, E.
700 1 $aFALEIRO, F. G.
700 1 $aMOREIRA, D.
700 1 $aPACHECO, G.
700 1 $aMANSUR, E.
773 $tJournal of Medicinal Plants Research$gv. 16, n. 2, p. 26-34, 2022.
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