Glyphosate, isolated or in associations, at agronomic performance and seed quality of the RR®2 soybean

Silva, André Felipe Moreira; Albrecht, Alfredo Júnior Paiola; Viana, Henrique Rodrigues Milagres; Giovanelli, Bruno Flaibam; Ghirardello, Giovani Apolari; Marco, Lucas Rafael de; Albrecht, Leandro Paiola; Filho, Ricardo Victória

doi:10.1590/1808-1657000732017

Cited by 3 publications

(5 citation statements)

References 16 publications

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“…Application of ACCase inhibitors in association with the broadleaf herbicides 2,4-D, triclopyr, dicamba, carfentrazone, saflufenacil and chlorimuron had no effect on soybean seed quality. Some studies reported negative effects for post-emergent chlorimuron application in soybean, especially visible injuries (FORNAZZA et al, 2018;SILVA et al, 2018b), but without altering seed quality (SILVA et al, 2018b), as observed in the present study. Although synthetic auxins can compromise emergence in the subsequent soybean crop (FRANCISCHINI et al, 2020;PERES-OLIVEIRA et al, 2020), there are generally no negative effects when the label-recommended time between application and planting is followed, as evident in seed quality in the present study.…”

Section: Resultssupporting

confidence: 79%

“…In glyphosate-tolerant soybeans, this herbicide compromises seed quality, particularly when applied in the reproductive stage (ALBRECHT et al, 2012). However, Silva et al (2018b) reported no negative effects on soybean seed quality or other parameters for ACCase, clethodim or fluazifop combined with post-emergent glyphosate.…”

Section: Resultsmentioning

confidence: 97%

“…Stressors that cause physiological changes in soybean can affect seed quality parameters such as viability and vigor (ALBRECHT et al, 2012). Although studies have identified negative effects of herbicides on seed quality, most involve postemergence application (SILVA et al, 2018a;GARCIA et al, 2020) or preharvest desiccants (ZUFFO et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Can pre- and/or post-emergent herbicide application affect soybean seed quality?

Ceretta,

Albrecht,

Albrecht

et al. 2023

Rev. Caatinga

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Soybean cultivation requires herbicide application in the off-season, before emergence for weed desiccation, and after emergence. It is believed that the use of preand post-emergent herbicides combined with preharvest application may negatively affect the quality of soybean seeds. As such, the present study aimed to assess the effect of preand post-emergent herbicides on soybean seed quality. Five field experiments were conducted during the 2018/2019 and 2019/2020 growing seasons to investigate the effects of synthetic auxins and pre-emergents, acetyl-CoA carboxylase (ACCase) inhibitors, broadleaf herbicides, and s-metolachlor or clomazone on the quality of soybean seeds. Dicamba application combined with the pre-emergent herbicides imazethapyr/flumioxazin before soybean planting reduced seed vigor and germination. ACCase inhibitors in association with broadleaf herbicides before planting had no effect on seed quality. Applying s-metolachlor (up to 2,880 g of active ingredient [ai] ha-1) or clomazone (up to 1,800 g ai ha-1) was safe for seed germination, even when used after soybean emergence.

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Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Can pre- and/or post-emergent herbicide application affect soybean seed quality?

Ceretta,

Albrecht,

Albrecht

et al. 2023

Rev. Caatinga

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“…On this occasion, the number of branches and the number of pods were also counted in five plants per plot. The application of chlorimuron can cause injuries to soybeans, especially when applied post-emergence of soybeans (Cesco et al 2018;Silva et al 2018a). For pre-emergence application, injury in soybeans is less common, but can also be observed, but in general without compromising agronomic performance (Belfry et al 2015;Priess et al 2020), as observed in the present study.…”

Section: Resultssupporting

confidence: 64%

Growth and agronomic performance of soybean applied with pre-emergence herbicides

Albrecht,

Novakoski

et al. 2023

Rev. Fac. Nac. Agron. Medellín

Self Cite

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Among the factors that limit the productive potential of soybean crops, stands out lodging, in addition to competition with weeds. Given this, the importance of soybean pre-emergence herbicides for different purposes is highlighted; however, they have to be evaluated for selectivity. This study aimed to evaluate the growth and agronomic performance of soybean applied with pre-emergence herbicides. Experiment 1 was conducted in the 2017-2018 season at two locations, and experiment 2 in the 2016-2017 season at one location. Treatments consisted of the application of pre-emergence herbicides in soybean in a randomized block design with four replications. Crop injury and chlorophyll indices (experiment 1) and variables related to agronomic performance (experiments 1 and 2) were assessed. Diclosulam and chlorimuron showed potential for application at pre-emergence to reduce plant height and consequently plant lodging. Moreover, diclosulam, chlorimuron, sulfentrazone, flumioxazin, s-metolachlor, pendimethalin, trifluralin, imazethapyr/flumioxazin, and oxyfluorfen did not negatively affect agronomic performance when applied at pre-emergence of soybean. This study evidenced the selectivity of pre-emergence herbicides to soybean.

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“…With the example of soybean expressing the cp4epsps gene, more research was carried out into the crop. It has been suggested that glyphosate may have a negative effect on several soybean parameters (ALBRECHT et al, 2018;SILVA et al, 2018). In various studies into RR2 maize, undesirable effects following glyphosate application, alone or in mixtures, were also detected: these included changes in the nutrient content of the leaves (OSÓRIO et al, 2015), plant height and reduced growth (ALBRECHT et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of glyphosate management, formulations and rates on the agronomic performance of maize with the cp4epsps gene

Albrecht,

Barroso

et al. 2024

RCA

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Second-generation glyphosate-tolerant maize (Roundup Ready 2, RR2) is characterised by the expression of the cp4epsps gene. Despite some studies suggesting possible undesirable eff ects from the application of glyphosate in RR2 maize, other reports have demonstrated glyphosate selectivity for RR2 plants, with minor damage symptoms, if any, and with no negative eff ects on the chlorophyll indices. The aim of this study was to evaluate the eff ect of diff erent types of glyphosate management, formulations and rates of application on chlorophyll indices and the agronomic performance of an RR2 maize genotype expressing the cp4epsps gene. Five experiments were conducted in a full factorial design (2 x 5 x 5) to evaluate two types of management, two formulations and fi ve rates of glyphosate. Damage symptoms, chlorophyll indices and variables related to agronomic performance (plant height, stem diameter, yield and 100-grain weight) were evaluated. Similar crop responses were found for each of the glyphosate formulations (potassium salt and isopropylamine salt) and types of management (single application and sequential application) under test, indicating that the use of glyphosate-based commercial products aff ords fl exibility in terms of formulation and frequency of application. Glyphosate formulated as potassium salt or isopropylamine salt and applied to RR2 maize either in a single application (full rate) or in two sequential applications (each at half rate) has a similar eff ect and may therefore be used without distinction. However, it is important to consider the rate of application since high rates of glyphosate (especially greater than 1,440 g ae ha -1 ) may affect the development and production of RR2 maize.

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Glyphosate, isolated or in associations, at agronomic performance and seed quality of the RR®2 soybean

Cited by 3 publications

References 16 publications

Can pre- and/or post-emergent herbicide application affect soybean seed quality?

Can pre- and/or post-emergent herbicide application affect soybean seed quality?

Growth and agronomic performance of soybean applied with pre-emergence herbicides

Effect of glyphosate management, formulations and rates on the agronomic performance of maize with the cp4epsps gene

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