Plant Response to Herbicides

Dyer, William E.; Weller, Stephen C.

doi:10.1002/9780470988503.ch7

Cited by 10 publications

(5 citation statements)

References 239 publications

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“…Inhibition of ALS by the herbicides diclosulam and [imazapyr + imazapic] lead to the depletion of the branchedchain amino acids, and plant death is thought to result from eventual protein starvation. Besides that, more subtle physiological effects associated with these herbicides is the accumulation of the ALS enzyme substrate which leads to cell toxicity (DYER; WELLER, 2005).…”

Section: Resultsmentioning

confidence: 99%

“…Diclosulam acts by inhibiting the acetolactate synthase (ALS), the enzyme common to the biosynthesis of the branched-chain amino acids (valine, leucine, and isoleucine), indicated for the control of dicotyledons in presowing incorporated or in pre-emergence in the soybean crop (DYER ;WELLER, 2005). The herbicide presents a partition value (K D ) considered low (117 ppm at pH 5.0), acid ionization constant (pK a ) of 4.09, octanol/water coefficient (K OW ) of 1.42 and half-life of 60 to 90 days, depending on the soil moisture and organic matter conditions (MONQUERO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Watermelon sensitivity to residual of pre-emergent herbicide applied in soybean crop

Ribeiro

Leal²,

Souza³

et al. 2019

RBHerbicidas

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O efeito residual duradouro de alguns herbicidas depende das características do solo e das moléculas, entretanto, a bioatividade do herbicida pode causar danos nas culturas em rotação/sucessão. A maneira mais comum de identificar a presença de herbicidas no solo, é pela implementação de bioensaios que utilizam uma espécie potencialmente sensível às moléculas herbicidas como indicador deste resíduo no solo. O objetivo foi identificar a sensibilidade da melancia como bioindicadora à resíduos de herbicidas pré-emergentes utilizados na cultura da soja. O ensaio foi conduzido em casa de vegetação, em vasos de 3 L, em delineamento por blocos ao acaso, com quatro repetições, em esquema fatorial de 3x4+1, onde o fator A foram os herbicidas diclosulam, [imazapyr + imazapic] e metribuzin, e o fator B as doses dos produtos comerciais [1/8D, 1/4D, 1/2D e D (dose recomendada em bula)] e mais o tratamento controle. Foram semeadas quatro sementes de melancia por vaso, contendo solo argiloso, após a aplicação dos herbicidas. As variáveis analisadas 30 dias após a emergência das plantas foram comprimento de parte aérea (cm), comprimento (cm), volume de raiz (mL), massa seca da parte aérea (g) e massa seca de raiz (g). Verificou-se que a melancia não germinou nos tratamentos com subdoses dos herbicidas diclosulam e metribuzin, e o crescimento reduziu nas subdoses do herbicida [imazapyr + imazapic]. Os resíduos de herbicidas estudados exerceram controle das plantas bioindicadora. Melancia possui sensibilidade aos herbicidas diclosulam, metribuzin e à mistura comercial dos herbicidas [imazapyr + imazapic], possuindo potencial para indicar resíduo destes herbicidas em solo argiloso.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Watermelon sensitivity to residual of pre-emergent herbicide applied in soybean crop

Ribeiro

Leal²,

Souza³

et al. 2019

RBHerbicidas

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“…O glifosato é um herbicida não seletivo, sendo letal a todas as espécies. É translocado eficientemente e acumula nos meristemas, sendo uma excelente opção no controle de daninhas perenes (DYER & WELLER, 2005).…”

Section: Inibidores De Epspsunclassified

Mistura Em Tanque E Interações Entre Herbicidas

Leal¹,

Oliveira²,

Souza³

et al. 2019

Desafios E Sustentabilidade No Manejo De Plantas

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“…These approaches are being exploited for herbicide discovery and selection, increasing the capacity of chemical syntheses, and facilitating the discovery of herbicides based on their action. The main strategy in herbicide design and production is based on eliminating or reducing the expression level of individual genes, selecting those that create a negative growth phenotype, and then working to identify their function [3].…”

Section: Introductionmentioning

confidence: 99%

Prenatal Herbicide Exposure in Children of Urban Women in Mexico

Sandova¹

2023

PAPN

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Exposure to herbicides in neonates, described in this article, was detected from the realization of a biomonitoring study, which was proposed due to the concern and academic interest on identifying the probable presence of agrochemicals in this population. The sample consisted of 280 neonates from a University Hospital. The determination of herbicides was by high performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS). Nine herbicides were studied, from which three were found: Molinate in 67 neonates (23.9%), statistical mean of 408, SD 229.3; 2-4D in 64 neonates (22.8%), mean 38, SD 5.6; Glufosinate in 34, (12.1%), mean 575, SD 385.2. None of the mothers reported a history of voluntary exposure to herbicides; the maternal route is the route of exposure. From this type of monitoring, the magnitude of herbicides present in the neonatal population cannot be underestimated, as it becomes important when at least 50% of the world's population lives in cities and this number is expected to increase to 60% by 2030.

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Plant Response to Herbicides

Cited by 10 publications

References 239 publications

Watermelon sensitivity to residual of pre-emergent herbicide applied in soybean crop

Watermelon sensitivity to residual of pre-emergent herbicide applied in soybean crop

Mistura Em Tanque E Interações Entre Herbicidas

Prenatal Herbicide Exposure in Children of Urban Women in Mexico

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