Deriva de herbicidas e efeito de fungicida X herbicida em plantas jovens de pessegueiro

Santos, L.D. Tuffi; Júnior, Américo Wagner; Silva, J.O.C.; Pimentel, Leonardo Duarte; Santos, Carlos Eduardo Magalhães dos; Bruckner, Cláudio Horst; Ferreira, Francisco Affonso

doi:10.1590/s0100-83582006000300012

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…The change in the leaf coloring pulverized with glyphosate is related to chloroplast degeneration, decrease of the photosynthetic rate, nutrients concentration and dry biomass of shoot and root (Zobiole et al 2010, Krenchinski et al 2017). This aspect was also observed in other crops subjected to simulated drift of glyphosate, such as eucalyptus (Tuffi Santos et al 2005), peach (Tuffi Santos et al 2006) and cotton (Miller et al 2004, Yamashita andGuimarães 2005). Timossi and Alves (2001) observed in orange trees, symptoms of phytotoxicity occasioned by clomazone in agreement with its expected mechanism of action, with formation of chlorotic spots in the younger leaves, that during development were coalescing until totally depigmented and leading to foliar abscission.…”

Section: Resultssupporting

confidence: 58%

“…However, when the technical recommendations for aerial pulverizations are not adopted, it may lead to problems in species not targeted for pulverization, that is, drift occurs in sensitive crops that are cultivated near the target crop (Gandolfo et al 2013). The deposition of herbicides in non-targeted areas http://cpsjournal.org and the imminent possibility of damage has led to several researches involving the concept of simulated drift, mainly in cultures in which herbicide application is done with aerial equipment (Timossi and Alves 2001, Tuffi Santos et al 2005, 2006, Wagner Jr. et al 2008, Gandolfo et al 2012, Foresti et al 2015, Rodrigues et al 2015.…”

Section: Highlighted Conclusionmentioning

confidence: 99%

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Simulated drift of herbicides applied alone and in tank mix in grapevine

Giacobbo¹,

Galon²,

Zeist³

et al. 2018

Commun. Plant Sci.

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Section: Resultssupporting

confidence: 58%

Section: Highlighted Conclusionmentioning

confidence: 99%

Simulated drift of herbicides applied alone and in tank mix in grapevine

Giacobbo¹,

Galon²,

Zeist³

et al. 2018

Commun. Plant Sci.

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“…The lower growth induced by this herbicide may have the consequence of reducing the concentrations of micronutrients in the leaves (FRANÇA et al, 2010a). Different results were observed in peach trees [(Prunus persica (Rosaceae)] (SANTOS et al, 2006) and Varjão [Parkia multijuga (Leguminosae -Mimosoideae)] (YAMASHITA et al, 2006) in which sublethal dosages of glyphosate did not provide growth suspension, indicating greater sensitivity for young coffee seedlings. Differential tolerance between species to agrochemicals can occur due to differences in applied doses, absorption and translocation to the target site, mechanisms that reduce the absorption of drops such as trichomes, thick layer of wax and overlapping leaves (REDDY et al, 2008;SILVA et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of leaf and root absorptions of glyphosate in the growth of coffee plants

et al. 2020

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Intoxication by dispersion of glyphosate droplets in coffee seedlings is common and, in addition to the problem of drift, there are reports of contamination of this herbicide to a nontarget plant via the rhizosphere. Hydroponics allows the comparison of the translocation of the glyphosate absorbed by the foliage or the roots and avoids the interaction with the soil, which could hamper the achievement of more accurate conclusions when it is absorbed by the root. Thus, the toxicity of glyphosate sublethal dosages in the initial growth of coffee plants in hydroponics was evaluated by applying four sublethal dosages in two different locations (solution and leaf). Fifty days after the application of the herbicide, the intoxication percentage and the growth of the coffee seedlings were evaluated. From the reduced dose of 115.2 g·ha-1 of glyphosate, height reductions, root length; number of leaves, dry mass of leaf, roots and total, leaf area, and leaf mass ratio were observed. The first two parameters were observed only in leaf application and the others via leaf and solution. The aerial part–root ratio system had an increase in herbicide sublethal dosages when applied to leaves and the ratio of leaf area and specific leaf area increased in both applications. Sublethal dosages of glyphosate applied to young coffee plants under hydroponic conditions impair their growth, and it is more accentuated with increasing doses and when the leaves, instead of the roots, absorb the herbicide.

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“…No entanto, existem vários trabalhos onde os autores verificaram a ação fitotóxica do glifosato em diversas culturas, causando desde amarelecimentos e necroses nas folhas, até a interferência no desenvolvimento das plantas (TUFFI SANTOS et al, 2006;YAMASHITA et al, 2009;FONTES et al, 2010;FRANÇA et al, 2010).…”

Section: Introductionunclassified

Desenvolvimento de mudas de pessegueiros submetidas a doses de glifosato

Rusin

Horst

Comiotto

et al. 2017

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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ResumoA região da Serra Gaúcha é considerada o terceiro polo produtor de pêssegos, onde se concentra a maior parte da produção de pêssegos para mesa. Dentre os agrotóxicos aplicados no pessegueiro na Serra Gaúcha, o glifosato está entre os mais utilizados pelos agricultores. No entanto, existem vários trabalhos onde os autores verificaram a ação fitotóxica do glifosato em diversas culturas. Portanto, o objetivo do trabalho foi verificar a influência da aplicação do herbicida glifosato no desenvolvimento de mudas de pessegueiro da cultivar Chimarrita enxertada sobre o porta-enxerto Capdeboscq. As mudas de pessegueiro transplantadas em vasos plásticos contendo solo foram conduzidas em casa de vegetação do Instituto Federal de Educação, Ciência e Tecnologia, campus Bento Gonçalves (IFRS-BG). Nos tratamentos foram usadas cinco diferentes doses de glifosato (Roundup Original®): 1 -testemunha (sem aplicação de herbicida); 2 -0.5 litro de produto comercial ha . As variáveis analisadas foram os sintomas de fitotoxicidade visual, diâmetro do tronco (mm), comprimento da parte aérea e das raízes (cm), massa fresca da raiz (g), massa seca da parte aérea e das raízes (g). Os dados obtidos foram submetidos à análise de regressão e as médias comparadas pelo teste de Tukey a 5% de probabilidade, utilizando o programa estatístico Sisvar. Os dados obtidos demonstram que houve fitotoxidez em todas as doses de glifosato aplicadas, porém não comprometeram o desenvolvimento das mudas de pessegueiro nas condições do experimento. Palavras-chave: Chimarrita, fitotoxicidade, herbicida. Abstract Development of peach seedlings treated with doses of glyphosate

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Deriva de herbicidas e efeito de fungicida X herbicida em plantas jovens de pessegueiro

Cited by 7 publications

References 10 publications

Simulated drift of herbicides applied alone and in tank mix in grapevine

Simulated drift of herbicides applied alone and in tank mix in grapevine

Evaluation of leaf and root absorptions of glyphosate in the growth of coffee plants

Desenvolvimento de mudas de pessegueiros submetidas a doses de glifosato

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