Efeitos do herbicida glifosato e da aplicação foliar de micronutrientes em soja transgênica

Merotto, Aldo; Wagner, J.; Meneguzzi, Cátia

doi:10.14393/bj-v31n2a2015-22307

Cited by 9 publications

(9 citation statements)

References 24 publications

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“…In the evaluation of the use of glyphosate applied in a mixture with leaf fertilizer in two soybean cultivars , Merotto Jr et al (2015) found no statistical difference in the number of grains per plant, number of grains per pod and weight of a thousand grains. Thus, the herbicide and the biofertilizer do not alter the yield components, only causes low intoxication in the crop, which had no difference in the presence or not of the biofertilizer.…”

Section: Resultsmentioning

confidence: 94%

“…Even when the application of glyphosate occurs in resistant soybean cultivars, some injury symptoms can happen after the application of the herbicide, such as the decrease in chlorophyll indexes (Cesco et al, 2018). This is possibly due to the accumulation of AMPA (aminomethylphosphonic), which is characterized as a phytotoxic metabolite that is formed in the degradation of glyphosate (Sharma et al, 2012;Merotto Jr. et al, 2015). Factors such as the physical and chemical characteristics of the herbicides, applied doses, climate and soil conditions and soybean cultivar sown in the crop, can cause variation in the intoxication by the use of products in the crop.…”

Section: Introductionmentioning

confidence: 99%

“…In glyphosate-resisant soybean, yellowing of the leaves may occur after the application of the herbicide, generating a symptom called yellow flashing, which is the visual effect of yellowing in the upper leaves (Zobiole et al, 2010;Merotto Jr. et al, 2015). This occurs due to the immobilization of Fe and Mn by the herbicide, in which the time and the degree of yellowing depend on the plant's ability to restore the levels of these elements (Merotto Jr. et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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‘BMX Ativa’ soybean responses after application of biofertilizer associated or not with glyphosate

Galon

Babinski

Forte

et al. 2021

Agraria

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Even with the development of glyphosate-resistant soybean, there are cases in which harmful effects of intoxication occur, especially when the herbicide is applied in mixture with other products. The objective of this work was to verify the efficiency of biofertilizer as a glyphosate stress reducer in the soybean "BMX Ativa". The experiment was installed in a randomized block design, in a 3 × 5 + 1 factorial scheme, with four replications. In factor A, soybean development stages (V4, V8 and V4 + V8) were allocated, and in factor B the application of 0.1 L ha-1 of biofertilizer, 1,080 and 2,160 g ha-1 of a.e. of glyphosate, applied in isolated mode and/or mix in tank, plus one control without application as an additional treatment. The evaluated variables were phytointoxication, number of grains per plant, number of pods per plant, thousand grains mass and soybean grain yield. The application of double the dose of glyphosate (2,160 g ha-1) alone or in mixture with the biofertilizer in stages V4, V8 and V4 + V8 caused visual injuries to soybean 'BMX Ativa' until 28 days after application, but without affect the productive characteristics of the crop. The biofertilizer did not affect soybean plants and neither mitigate the negative effect of the highest dose of glyphosate.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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‘BMX Ativa’ soybean responses after application of biofertilizer associated or not with glyphosate

Galon

Babinski

Forte

et al. 2021

Agraria

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“…Glyphosate is an organic and non-selective post-emergence herbicide that is used in both agricultural and non-agricultural areas around the world, and in agriculture, it is widely used in genetically modified crops, and with the release of commercial production of transgenic soy, its use became potentially larger (Merotto Jr et al, 2015).…”

Section: Glyphosatementioning

confidence: 99%

Histo Hepatic Alterations in Commercially Important Fish (Pseudoplatystoma corruscans Spix & Agassiz, 1829) Exposed to a Glyphosate-Based Herbicide

Ribeiro

Trindade

Favetta

et al. 2021

JAS

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The presence of herbicides in the aquatic environment can cause different effects at all levels of biological organization. This study aimed to evaluate the hepatic alterations of the herbicide Roundup WG® on juvenile Pseudoplatystoma corruscans exposed to three different concentrations of this chemical compound: 0.25g/1000L, 0.50g/1000L, and 0.75g/1000L, plus control treatment (0.00g/1000L). The experiment lasted sixty days and, in the end, liver fragments were collected for further histological processing, using the hematoxylin-eosin (HE) technique. Only the control group showed a statistically significant increase in body mass and total length during the experiment. Blood glucose also showed no difference among the sample groups. The lesions found in the liver considered severe were hemorrhage, vacuolization, and hypertrophy of hepatocytes and the presence of free melanomacrophages, recorded in the groups exposed to 0.50 and 0.75g/1000L. The results obtained in the present study indicate that the herbicide Roundup WG® can promote liver alterations in Pseudoplatystoma corruscans.

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“…Glyphosate is a systemic herbicide of broad spectrum, inhibiting the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSP), responsible for catalyze the condensation of phosphoenolpyruvate, essential step in the shikimic acid biosynthesis (Berlvald et al, 2010;Malty, Siqueira, & Moreira, 2006), thus, glyphosate is commonly used in RR soybean genotypes (Merotto-Junior, Wagner, & Meneguzi, 2015). However, even though RR soybean is resistant to this molecule, there are cases where farmers verify toxicity effects after post-emergence spraying, resulting in leaf chlorosis (Basso, Santi, Lamego, & Girotto 2011), nutritional unbalance (Cavalieri, Velini, Silva, São-José, & Andrade, 2012) and negative effect in soil microbiota (Dallmann, Scheneider, & Kuhn, 2010).…”

Section: Introductionmentioning

confidence: 99%

Nodulation and agronomic performance of soybean grown in different seeding periods and glyphosate formulations

Escalera

Carvalho

Pimentel

et al. 2021

ASB J.

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The aimed to evaluate the influence of different glyphosate formulations in nodulation, agronomic performance and RR soybean seeds yield, grown in two sowing periods. The experimental design was the casualized blocks with treats disposed in four replicates, being organized in factorial scheme, two seeding periods x five glyphosate formulations. The measured characters were number of nodules per plant, number of active nodules, number of inactive nodules, height of the first legume insertion, plant height, number of legumes per plant, number of seeds per plant, mass of thousand seeds and yield of seeds per plant. The isopropylamine salt influences nodular activity, number of vegetables and seeds per plant, as well as seed yield. The sowing of soybeans at the recommended time propitiates smaller modifications face to glyphosate formulations. mulations.

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Efeitos do herbicida glifosato e da aplicação foliar de micronutrientes em soja transgênica

Cited by 9 publications

References 24 publications

‘BMX Ativa’ soybean responses after application of biofertilizer associated or not with glyphosate

‘BMX Ativa’ soybean responses after application of biofertilizer associated or not with glyphosate

Histo Hepatic Alterations in Commercially Important Fish (Pseudoplatystoma corruscans Spix & Agassiz, 1829) Exposed to a Glyphosate-Based Herbicide

Nodulation and agronomic performance of soybean grown in different seeding periods and glyphosate formulations

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