Carfentrazone-ethyl, isolado e associado a duas formulações de glyphosate no controle de duas espécies de trapoeraba

Ronchi, Cláudio Pagotto; Silva, A.A.; Ferreira, Lino Roberto; Miranda, Glauco Vieira; Terra, Ademir

doi:10.1590/s0100-83582002000100014

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Embora carfentrazone não tenha se mostrado eficiente no controle de espécies da família Commelinaceae, conforme descrito por Ronchi et al (2002) em trabalho com as espécies Commelina diffusa e C. benghalensis, especialmente a primeira, os resultados para T. pallida sugerem controle desta espécie especialmente por meio de toxidez e baixo índice de rebrota. Volf et al (2017) trabalhando com Murdannia nudiflor relataram eficácia sobre esta Commelinaceae combinando os herbicidas carfentrazone e atrazina.…”

Section: Análise Estatísticaunclassified

Resposta diferencial a diferentes classes de herbicidas: Tradescantia pallida (Rose) D. R. Hunt var. purpurea Boom como planta modelo

Menegazzo

Rickli

Scanavacca

et al. 2021

RSD

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Tradescantia pallida é uma planta ornamental amplamente encontrada em canteiros e jardins urbanos. No entanto, informações sobres as respostas fisiológicas e bioquímicas dessa planta ornamental a herbicidas são escassas. Diante disso, este trabalho teve como objetivo avaliar a toxicidade, capacidade de rebrota, crescimento, fisiologia, e alterações no metabolismo de T. pallida após aplicação de diferentes classes de herbicidas. Os tratamentos consistiram na pulverização dos herbicidas: atrazina (1.500 g ha-1), diquat (300 g ha-1), carfentrazone (10 g ha-1), glifosato (1.500 g ha-1) e 2,4-D (1.050 g ha-1) sobre T. pallida. Plantas pulverizadas somente com água representaram o grupo controle. As avaliações foram realizadas 5 dias após a aplicação dos herbicidas. Foi avaliado a toxicidade visual e índice de rebrota, fluorescência da clorofila a, conteúdo de clorofilas (a, b e a+b), carotenoides e prolina. O herbicida 2,4-D não atuou sobre a planta, mas pode ter produzido efeito genotóxico. Glifosato aumentou significativamente o teor de prolina e gerou índice zero de rebrota, evidenciando sensibilidade da planta ao herbicida. Carfentrazone não foi totalmente eficiente sobre o controle de T. pallida, que também não demonstrou sensibilidade a atrazina, mas alta sensibilidade a diquat, apesar do baixo teor de prolina verificado. As diferentes classes de herbicidas atuam de maneira diferente quanto à toxidez, rebrota, fisiologia e metabolismo de T. pallida, sendo estas, variáveis úteis para investigar a possível tolerância de plantas às diferentes classes de herbicidas.

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Section: Análise Estatísticaunclassified

Resposta diferencial a diferentes classes de herbicidas: Tradescantia pallida (Rose) D. R. Hunt var. purpurea Boom como planta modelo

Menegazzo

Rickli

Scanavacca

et al. 2021

RSD

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“…Already chemical control may be limited, since most of the herbicides have been shown to be inefficient in single application for Commelina species control in the adult stag, except 2,4-D (RONCHI et al, 2002). Wilson (1981) reports that the difficulty of controlling Commelinaceae family plants can be attributed to its double reproductive mechanism: by seeds and node rooting.…”

Section: Dayflowermentioning

confidence: 99%

Morpho-physiological behavior of Commelina benghalensis in response to herbicides aplied in post-emergency

Krolikowski¹,

Carvalho²,

Teodoro³

2017

Biosci. J.

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Given the difficulty in controlling dayflower, the aim was to identify what herbicide provides the better control of Commelina benghalensis and the better developmental stage for its application. The plants were grown in pots containing 2 L Bioplant substrate and soil being maintained throughout the trial at a greenhouse. Experimental design was completely randomized with four replications in factorial 8 x 5, so seven herbicides in recommended commercial rates (atrazine, carfentrazone, flumioxazin, glyphosate, MSMA, nicosulfuron and paraquat) and control applied at 5 phenological stages adjusted to BBCH scale. It was observed that the plant phenological stage affects the efficiency of chemical control. Plants at early development stages (BBCH 11 and 12) were more susceptible to herbicides, occurring control in its entirety only with atrazine, carfentrazone, MSMA and paraquat. Despite suffering injuries, C. benghalensis showed tolerance to others treatments.

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“…However, the values of total dry matter and percentage of poisoning 21 days after the application does not demonstrate effective species control. Thus, the products must be tested at higher doses, the done application in less developed weed stage, according to the indication of efficient use or, as highlighted by Ronchi et al (2002aRonchi et al ( , 2002b, the mixture with other products which enhance the benghal dayflower control.…”

Section: Dias -------------------%--------------------mentioning

confidence: 99%

Controle de trapoeraba com diferentes formulações de glyphosate

Carvalho¹,

José²,

Lopes³

et al. 2015

RBHerbicidas

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-Benghal dayflower (Commelina benghalensis L.) is a weed plant that easily infests agricultural areas due to its aggressive characteristics associated with reproductive aspects of the species. One important aspect of this plant is presenting its tolerance to the glyphosate. An experiment in greenhouse was conducted to verify the effects of different formulations and commercial products of glyphosate in controlling benghal dayflower. The experimental design was completely randomized, with four replications. The plants were grown in pots filled with eight liters of substrate each, consisting of soil, sand and tanned cattle manure until they have reached the stage of development of the second growth sector, when the following products and their commercial formulations were applied: Roundup Original ® -isopropylamine salt; Trop ® -isopropylamine salt; Roundup WG ® -ammonium salt; Zapp QI ® -potassium salt; Roundup Transorb R ® = potassium salt and Crucial ® -isopropylamine salt + potassium salt. The intoxication of benghal dayflower plants was visually assessed at 7, 14 and 21 days after application of the products, and leaf area, dry matter of leaves, dry matter of the stem, dry matter of root and total dry matter at 21 days after application. The treatments show significant differences in the toxicity of the plants after 14 days of application, and at 21 days it was found that the products Roundup WG ® and Crucial ® were more toxic to plants. The products Roundup WG ® and Crucial ® were highlighted with greater reductions in dry matter of the leaves, stem and total plant. In general, the benghal dayflower has not been effectively controlled by the products at the doses tested and/or by the application after the emission of the second branch of weed. Among the commercial formulations or products, the ammonium salt is highlighted -Roundup WG ® and the mixture of isopropylamine salt with potassium salt -Crucial ® presents higher efficiency in weed control. Keywords: Commelina benghalensis; isopropylamine salt; potassium salt; ammonium salt Resumo -A trapoeraba (Commelina benghalensis L.) é uma planta daninha que infesta facilmente áreas agrícolas devido à suas características de agressividade associadas aos aspectos reprodutivos da espécie. Um dos aspectos importantes desta planta apresentar é sua tolerância ao herbicida glyphosate. Um experimento em ambiente protegido foi realizado para verificar os efeitos de diferentes formulações e produtos comerciais do herbicida glyphosate no controle da trapoeraba. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro 1 Received for publication on 21/10/2015 and approved on 11/01/2016.

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Carfentrazone-ethyl, isolado e associado a duas formulações de glyphosate no controle de duas espécies de trapoeraba

Cited by 6 publications

References 4 publications

Resposta diferencial a diferentes classes de herbicidas: Tradescantia pallida (Rose) D. R. Hunt var. purpurea Boom como planta modelo

Resposta diferencial a diferentes classes de herbicidas: Tradescantia pallida (Rose) D. R. Hunt var. purpurea Boom como planta modelo

Morpho-physiological behavior of Commelina benghalensis in response to herbicides aplied in post-emergency

Controle de trapoeraba com diferentes formulações de glyphosate

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