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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
25/04/2022 |
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Actualizado : |
25/04/2022 |
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Autor : |
KASPARY, T. E.; LAMEGO, F. P.; CUTTI, L.; AGUIAR, A. C. DE M.; RIGON, C. A. G.; BASSO, C. J. |
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Título : |
Growth, phenology, and seed viability between glyphosate-resistant and glyphosate-susceptible hairy fleabane. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Bragantia, Campinas v. 76, n. 1, p. 92-101, jan./mar. 2017. |
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Idioma : |
Inglés |
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Contenido : |
Glyphosate is the herbicide most used worldwide. In cropping systems that rely on repeated applications of glyphosate or cultivate genetically modified soyabean crop, there are numerous cases of glyphosate resistant weeds, including Conyza bonariensis. Differences among competitive ability of Conyza spp. have been found. However, little information is available on the fitness costs related to glyphosate resistance in Conyza bonariensis. We evaluated growth, phenology, and seed viability of glyphosate-resistant (GR) and glyphosate-susceptible (GS) Conyza bonariensis from Brazil, in 2012 (fall/winter) and 2013 (spring/summer). When grown alone, in pots, C. bonariensis GR biotype developed more rapidly than the GS biotype, as evidenced by their earlier bolting, flowering, and seed set. In 2012, GR biotype showed 221.9 cm of plant height compared to 181.1 cm from GS, at the flowering time. In both years, the seed production per plant was superior for GR biotype, showing germination higher than 80% against 66.5% from the GS biotype. Thus, C. bonariensis GR biotype confirmed no fitness penalty also showing characteristics that allow us to infer in superior competitive with the absence of the herbicide. It is important to point out that the biotypes evaluated here have different genetic background and the differences between them may not be fully attributed to the resistance to glyphosate. However, the GR biotype can persist in the environment and outcompete with GS biotypes regardless of further glyphosate selection of pressure. MenosGlyphosate is the herbicide most used worldwide. In cropping systems that rely on repeated applications of glyphosate or cultivate genetically modified soyabean crop, there are numerous cases of glyphosate resistant weeds, including Conyza bonariensis. Differences among competitive ability of Conyza spp. have been found. However, little information is available on the fitness costs related to glyphosate resistance in Conyza bonariensis. We evaluated growth, phenology, and seed viability of glyphosate-resistant (GR) and glyphosate-susceptible (GS) Conyza bonariensis from Brazil, in 2012 (fall/winter) and 2013 (spring/summer). When grown alone, in pots, C. bonariensis GR biotype developed more rapidly than the GS biotype, as evidenced by their earlier bolting, flowering, and seed set. In 2012, GR biotype showed 221.9 cm of plant height compared to 181.1 cm from GS, at the flowering time. In both years, the seed production per plant was superior for GR biotype, showing germination higher than 80% against 66.5% from the GS biotype. Thus, C. bonariensis GR biotype confirmed no fitness penalty also showing characteristics that allow us to infer in superior competitive with the absence of the herbicide. It is important to point out that the biotypes evaluated here have different genetic background and the differences between them may not be fully attributed to the resistance to glyphosate. However, the GR biotype can persist in the environment and outcompete with GS biotypes regard... Presentar Todo |
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Palabras claves : |
CONYZA BONARIENSIS; Dry weight; Leaf area; Plant height; Seed set. |
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Thesagro : |
Área foliar; Estatura de planta; Semente. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02349naa a2200277 a 4500
001 1063084
005 2022-04-25
008 2017 bl uuuu u00u1 u #d
100 1 $aKASPARY, T. E.
245 $aGrowth, phenology, and seed viability between glyphosate-resistant and glyphosate-susceptible hairy fleabane.$h[electronic resource]
260 $c2017
520 $aGlyphosate is the herbicide most used worldwide. In cropping systems that rely on repeated applications of glyphosate or cultivate genetically modified soyabean crop, there are numerous cases of glyphosate resistant weeds, including Conyza bonariensis. Differences among competitive ability of Conyza spp. have been found. However, little information is available on the fitness costs related to glyphosate resistance in Conyza bonariensis. We evaluated growth, phenology, and seed viability of glyphosate-resistant (GR) and glyphosate-susceptible (GS) Conyza bonariensis from Brazil, in 2012 (fall/winter) and 2013 (spring/summer). When grown alone, in pots, C. bonariensis GR biotype developed more rapidly than the GS biotype, as evidenced by their earlier bolting, flowering, and seed set. In 2012, GR biotype showed 221.9 cm of plant height compared to 181.1 cm from GS, at the flowering time. In both years, the seed production per plant was superior for GR biotype, showing germination higher than 80% against 66.5% from the GS biotype. Thus, C. bonariensis GR biotype confirmed no fitness penalty also showing characteristics that allow us to infer in superior competitive with the absence of the herbicide. It is important to point out that the biotypes evaluated here have different genetic background and the differences between them may not be fully attributed to the resistance to glyphosate. However, the GR biotype can persist in the environment and outcompete with GS biotypes regardless of further glyphosate selection of pressure.
650 $aÁrea foliar
650 $aEstatura de planta
650 $aSemente
653 $aCONYZA BONARIENSIS
653 $aDry weight
653 $aLeaf area
653 $aPlant height
653 $aSeed set
700 1 $aLAMEGO, F. P.
700 1 $aCUTTI, L.
700 1 $aAGUIAR, A. C. DE M.
700 1 $aRIGON, C. A. G.
700 1 $aBASSO, C. J.
773 $tBragantia, Campinas$gv. 76, n. 1, p. 92-101, jan./mar. 2017.
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
19/07/2022 |
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Actualizado : |
19/07/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
DINI, M.; RASEIRA, M.C.B.; SCARIOTTO, S.; CARPENEDO, S.; UENO, B. |
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Afiliación : |
MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas; MARIA DO CARMO BASSOLS RASEIRA, Empresa Brasileira de Pesquisa Agropecuária; SILVIA SCARIOTTO, Universidade Tecnológica Federal do Paraná; SILVIA CARPENEDO, Empresa Brasileira de Pesquisa Agropecuária; BERNARDO UENO, Empresa Brasileira de Pesquisa Agropecuária. |
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Título : |
Peach and nectarine susceptibility to brown rot and protocol optimization to evaluate Monilinia fructicola sporulation. |
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Complemento del título : |
Crop Protection. (Fitossanidade). |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Acta Scientiarum. Agronomy, 2022, 44(1), e55850. doi: https://doi.org/10.4025/actasciagron.v44i1.55850 |
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ISSN : |
1807-8621 (electronic) |
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DOI : |
10.4025/actasciagron.v44i1.55850 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received on September 16, 2020; Accepted on January 20, 2021.
This work is licensed under a Creative Commons Attribution 4.0 International License. https://creativecommons.org/licenses/by/4.0/ |
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Contenido : |
ABSTRACT.- The fungus Monilinia fructicola, which causes brown rot in fruits, is one of the main peach pathogens. The emergence of fungicide-resistant fungus isolates, as well as the attempt to reduce sprays, favors adoption of other control strategies. Among them, one of the most important is genetic resistance. This study was carried out aiming to evaluate the susceptibility of 16 peach and 4 nectarine genotypes to brown rot, as well as to evaluate how well the sporulation area and diameter correlate with number of spores in the lesions. Both wounded and non-wounded fruits were inoculated with 10 ?L of M. fructicola suspension. Wounded fruits from all genotypes (nectarines and peaches) showed susceptibility to M. fructicola, from 92 to 100% of incidence. The disease incidence was between 18 and 100% when non-wounded fruits were inoculated. High variability was detected for the fungus sporulation, in both wounded and non-wounded fruits, with ranges between 16 to 96% and 0 to 94%, respectively. The fungus sporulation was variable among the genotypes (between 0.1 to 96.0 conidia per mm2) and it is positively correlated with the diameter and area of sporulation. The genotypes Conserva 947, Conserva 1662, Conserva 672, Conserva 1600,and 'Bolinha', are the ones with less susceptible to brown rot.
Copyright (c) 2022 Acta Scientiarum. Agronomy |
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Palabras claves : |
Genetic resistance; Screening. |
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Thesagro : |
PRUNUS PERSICA. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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URL : |
https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/55850/751375154467
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Marc : |
LEADER 02405naa a2200241 a 4500
001 1063433
005 2022-07-19
008 2022 bl uuuu u00u1 u #d
022 $a1807-8621 (electronic)
024 7 $a10.4025/actasciagron.v44i1.55850$2DOI
100 1 $aDINI, M.
245 $aPeach and nectarine susceptibility to brown rot and protocol optimization to evaluate Monilinia fructicola sporulation.$h[electronic resource]
260 $c2022
500 $aArticle history: Received on September 16, 2020; Accepted on January 20, 2021. This work is licensed under a Creative Commons Attribution 4.0 International License. https://creativecommons.org/licenses/by/4.0/
520 $aABSTRACT.- The fungus Monilinia fructicola, which causes brown rot in fruits, is one of the main peach pathogens. The emergence of fungicide-resistant fungus isolates, as well as the attempt to reduce sprays, favors adoption of other control strategies. Among them, one of the most important is genetic resistance. This study was carried out aiming to evaluate the susceptibility of 16 peach and 4 nectarine genotypes to brown rot, as well as to evaluate how well the sporulation area and diameter correlate with number of spores in the lesions. Both wounded and non-wounded fruits were inoculated with 10 ?L of M. fructicola suspension. Wounded fruits from all genotypes (nectarines and peaches) showed susceptibility to M. fructicola, from 92 to 100% of incidence. The disease incidence was between 18 and 100% when non-wounded fruits were inoculated. High variability was detected for the fungus sporulation, in both wounded and non-wounded fruits, with ranges between 16 to 96% and 0 to 94%, respectively. The fungus sporulation was variable among the genotypes (between 0.1 to 96.0 conidia per mm2) and it is positively correlated with the diameter and area of sporulation. The genotypes Conserva 947, Conserva 1662, Conserva 672, Conserva 1600,and 'Bolinha', are the ones with less susceptible to brown rot. Copyright (c) 2022 Acta Scientiarum. Agronomy
650 $aPRUNUS PERSICA
653 $aGenetic resistance
653 $aScreening
700 1 $aRASEIRA, M.C.B.
700 1 $aSCARIOTTO, S.
700 1 $aCARPENEDO, S.
700 1 $aUENO, B.
773 $tActa Scientiarum. Agronomy, 2022, 44(1), e55850. doi: https://doi.org/10.4025/actasciagron.v44i1.55850
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