Sublethal effects of herbicides on the biomass and seed production of terrestrial non-crop plant species, influenced by environment, development stage and assessment date

Riemens, M.M.; Dueck, T.A.; Kempenaar, C.; Lotz, L.A.P.; Kropff, M.J.

doi:10.1016/j.envpol.2009.03.037

Cited by 34 publications

(50 citation statements)

References 21 publications

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“…Riemens et al [23] found with four noncrop species that older plants were more sensitive when exposed to low concentrations of tepraloxydim, although several exceptions were noted, depending on plant development at harvest. Although the cotyledon stage is usually the most sensitive to 466 Environ.…”

Section: Toxicity Changes Based On Plant Developmentmentioning

confidence: 93%

“…If greenhouse testing is the method of choice, then the results may be more or less sensitive than reality, and more restrictive regulations (safety factors) should be imposed to account for this variability. The use of safety factors has also been suggested by Riemens et al [23] because of the uncertainty of differences in climatological factors between greenhouse and field conditions. The lack of data developed to directly test greenhouse data extrapolated to the field and the inability to extrapolate plant toxicity data to other species within the same family increases the uncertainty of current registration tests and increases the need for research in this area.…”

Section: Location Effects On Ec25mentioning

confidence: 96%

“…Riemens et al [23] found differences based on herbicide used, with greenhousegrown plants being more sensitive to glufosinate ammonium, while field-grown plants were more sensitive to tepraloxydim. Our work and others [23] are in agreement with the literature assessment by Fletcher et al [6] showing the ratio between greenhouse-and field-grown plants to be around 1.8. To be included in their review, the studies had to have comparable lethality endpoints such as kill, control number reduction, and cover reduction between the field-and greenhouse-grown plants.…”

Section: Location Effects On Ec25mentioning

confidence: 98%

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Comparing effects of low levels of herbicides on greenhouse‐ and field‐grown potatoes (Solanum tuberosumL.), soybeans (Glycine maxL.), and peas (Pisum sativumL.)

Pfleeger

Olszyk

Lee

et al. 2010

Enviro Toxic and Chemistry

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Although laboratory toxicology tests are generally easy to perform, cost effective, and readily interpreted, they have been questioned for their environmental relevance. In contrast, field tests are considered realistic while producing results that are difficult to interpret and expensive to obtain. Toxicology tests were conducted on potatoes, peas, and soybeans grown in a native soil in pots in the greenhouse and were compared to plants grown outside under natural environmental conditions to determine toxicological differences between environments, whether different plant developmental stages were more sensitive to herbicides, and whether these species were good candidates for plant reproductive tests. The reproductive and vegetative endpoints of the greenhouse plants and field-grown plants were also compared. The herbicides bromoxynil, glyphosate, MCPA ([4-chloro-2-methylphenoxy] acetic acid), and sulfometuron-methyl were applied at below field application rates to potato plants at two developmental stages. Peas and soybeans were exposed to sulfometuron-methyl at similar rates at three developmental stages. The effective herbicide concentrations producing a 25% reduction in a given measure differed between experimental conditions but were generally within a single order of magnitude within a species, even though there were differences in plant morphology. This study demonstrated that potatoes, peas, and soybeans grown in pots in a greenhouse produce phytotoxicity results similar to those grown outside in pots; that reproductive endpoints in many cases were more sensitive than vegetative ones; and that potato and pea plants are reasonable candidates for asexual and sexual reproductive phytotoxicity tests, respectively. Plants grown in pots in a greenhouse and outside varied little in toxicity. However, extrapolating those toxicity results to native plant communities in the field is basically unknown and in need of research.

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Section: Toxicity Changes Based On Plant Developmentmentioning

confidence: 93%

Section: Location Effects On Ec25mentioning

confidence: 96%

Section: Location Effects On Ec25mentioning

confidence: 98%

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Comparing effects of low levels of herbicides on greenhouse‐ and field‐grown potatoes (Solanum tuberosumL.), soybeans (Glycine maxL.), and peas (Pisum sativumL.)

Pfleeger

Olszyk

Lee

et al. 2010

Enviro Toxic and Chemistry

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show abstract

“…Debido a estas propiedades, pueden contaminar el ambiente mediante la escorrentía agrícola o la lixiviación (Ren et al, 2010). Numerosas investigaciones confirman la incidencia (Holden et al, 1992;Walls et al, 1996), destino (Bintein y Devillers, 1996;Kruger et al, 1997) y efectos de los herbicidas sobre el medio ambiente, incluyendo impacto en las comunidades de vegetación autóctona (Tomkins y Grant, 1977;Marrs et al, 1991;Marrs y Frost, 1997;Riemens et al, 2009), y en las comunidades acuáticas (Spawn et al, 1997;Kotrikla et al, 1999;Relyea, 2005), disminución de las poblaciones de mariposas (Longley y Sotherton, 1997) y aumento de las deformidades en ranas (Barinaga, 1990;Blaustein y Wake, 1990).…”

Section: íNdice De Tablasunclassified

Fitotoxicidad De Aceites Esenciales Y Extractos Acuosos De Plantas Mediterráneas Para El Control De Arvenses

Sancho¹,

Mercedes²

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“…Isso tem gerado uma série de problemas ambientais ao longo dos anos, no Brasil e em outros países. [3][4][5] No Brasil o consumo de herbicidas é bastante elevado em especial nas regiões sul, sudeste e centro-oeste com destaque para as culturas de soja, milho, cana-de-açúcar e arroz. Essas regiões por sua vez, classificadas como as mais desenvolvidas no que diz respeito à produção agrícola em território nacional, além de parte da Argentina, Paraguai e Uruguai, são abrangidas pelo maior reservatório de água doce do mundo, o Aquífero Guarani.…”

Section: Introductionunclassified

Estudo de sorção de herbicidas pelos argilominerais vermiculita e montmorilonita

Rezende¹,

Peralta-Zamora²,

Abate³

2011

Quím. Nova

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Recebido em 13/11/09; aceito em 5/7/10; publicado na web em 9/11/10 SORPTION STUDY OF HERBICIDES WITH THE CLAY MINERALS VERMICULITE AND MONTMORILLONITE. The clay minerals montmorillonite (MT) and vermiculite (VT), previously treated with Ca 2+ , K + and Na + , were employed in a sorption study with herbicides. The herbicides 2,4-D, diuron, alachlor and metolachlor showed no interaction with MT and VT. On the other hand, the triazines presented a good sorption process, close to 100% for ametrine removal and near to 56 and 69% for atrazine and simazine, respectively, by MT. These results suggest that the MT specie may be a good material for triazines removal from aqueous medium and an alternative phase to preconcentration process, besides to exhibit a good selectivity.Keywords: clay minerals; preconcentration; water. INTRODUÇÃODos pesticidas utilizados na agricultura, aproximadamente 50% do total se referem ao uso de herbicidas, sendo esta a classe dos agrotóxicos de maior utilização em nível mundial. 1,2 Muitos desses herbicidas apresentam elevada toxicidade ao ser humano, bem como baixa taxa de mineralização, com consequente persistência nos solos, podendo atingir rios, lagos e águas subterrâneas, devido à permeação através dos solos. Isso tem gerado uma série de problemas ambientais ao longo dos anos, no Brasil e em outros países. [3][4][5] No Brasil o consumo de herbicidas é bastante elevado em especial nas regiões sul, sudeste e centro-oeste com destaque para as culturas de soja, milho, cana-de-açúcar e arroz. Essas regiões por sua vez, classificadas como as mais desenvolvidas no que diz respeito à produção agrícola em território nacional, além de parte da Argentina, Paraguai e Uruguai, são abrangidas pelo maior reservatório de água doce do mundo, o Aquífero Guarani. Sendo assim, as possibilidades de contaminação de águas subterrâneas são amplas, dependendo das características do solo e dos herbicidas utilizados. 6 Dessa forma, a legislação brasileira CONAMA n° 357 de 2005 regulamenta os níveis máximos de pesticidas em corpos de água, baseados em sua periculosidade, assim como estabelece as condições e padrões de efluentes para o lançamento em corpos hídricos. 7 Os herbicidas ametrina, atrazina, simazina, alacloro, metolacloro e diuron são classificados pelo Ministério da Saúde como medianamente tóxicos (classificação III), ao passo que o 2,4-D, é classificado como extremamente tóxico (classificação I) aos organismos vivos, 8 e estão entre os herbicidas mais comercializados no Brasil. 9 Somente para os dois primeiros agroquímicos não há legislação vigente; para os demais, a concentração máxima na água potável é de 2 µg L -1 para a atrazina e simazina, 10 µg L -1 para o metolacloro, 20 µg L -1 para o alacloro e 4 µg L -1 para o 2,4-D. 7 Face ao exposto, um grande número de estudos envolvendo a interação entre herbicidas e solos, 10-13 ou com componentes dos solos, 14,15 vem sendo conduzido, visando principalmente conhecer o possível comprometimento do solo e de águas subterrâneas. Dentre tais estudos, um en...

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Sublethal effects of herbicides on the biomass and seed production of terrestrial non-crop plant species, influenced by environment, development stage and assessment date

Cited by 34 publications

References 21 publications

Comparing effects of low levels of herbicides on greenhouse‐ and field‐grown potatoes (Solanum tuberosumL.), soybeans (Glycine maxL.), and peas (Pisum sativumL.)

Comparing effects of low levels of herbicides on greenhouse‐ and field‐grown potatoes (Solanum tuberosumL.), soybeans (Glycine maxL.), and peas (Pisum sativumL.)

Fitotoxicidad De Aceites Esenciales Y Extractos Acuosos De Plantas Mediterráneas Para El Control De Arvenses

Estudo de sorção de herbicidas pelos argilominerais vermiculita e montmorilonita

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