Glyphosate effects on photosynthesis, nutrient accumulation, and nodulation in glyphosate‐resistant soybean

Zobiole, Luiz Henrique Saes; Kremer, R.J.; Oliveira, R.S.; Constantin, Jamil

doi:10.1002/jpln.201000434

Cited by 105 publications

(100 citation statements)

References 40 publications

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“…According to Ding et al (2011), glyphosate can provide a reduction in photosynthetic activity of the plant; thereby, lower production of photoassimilates also occurs. Moreover, the reduction of chlorophyll content, brought about by glyphosate application, can also lead to reduction in photosynthetic activity and therefore lower mass accumulation in the plant (Zobiole et al 2012). These characteristics were observed in the experiment with simulated rainfall, where plants with lower SPAD value had lower dry matter accumulation (Table 5).…”

Section: Resultssupporting

confidence: 51%

Surfatante siliconado e glyphosate no controle de Brachiaria decumbens

Teixeira¹,

Veronese

Christoffoleti

2015

RBHerbicidas

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-The research goal was to evaluate the effects of silicone surfactant and simulated rainfall in glyphosate efficiency in controlling Brachiaria decumbens. The experiments were carried out at (a unit of the University of São Paulo) Escola Superior de Agricultura Luiz de Queiroz (ESALQ -Luiz de Queiroz College of Agriculture) in greenhouse conditions, in a randomized block design with four replications. In one experiment, a simulated rainfall of 10 mm was carried out, 30 minutes after treatments application, and in the other there was no simulation. The treatments were arranged in a 5x3 factorial arrangement, with the first factor corresponding to the doses of glyphosate (0, 135, 270, 540 and 1080 g ha -1 a.e.), and the second one to the doses of silicone surfactant (0, 50 and 100 mL ha -1 ). The applications were performed at 30 days after sowing. In the presence of a simulated rainfall, the percentage of control was increased and chlorophyll content was reduced in the dose of 135 g ha -1 a.e. of glyphosate, together with 100 mL ha -1 of silicone surfactant. Increase in lipid peroxidation was also observed with the addition of 100 mL ha -1 . In the experiment without a simulated rain, at seven days after treatments application, a higher percentage of control was observed at doses of 540 and 1080 g ha -1 a.e. with 100 mL ha -1 of silicone surfactant. Therefore, the use of silicone surfactant at a dose of 100 mL ha -1 increases the efficiency of glyphosate in the control of Brachiaria decumbens in the absence of simulated rain and rain conditions held for half an hour after application.

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Section: Resultssupporting

confidence: 51%

Surfatante siliconado e glyphosate no controle de Brachiaria decumbens

Teixeira¹,

Veronese

Christoffoleti

2015

RBHerbicidas

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“…Several years after induction of GR crops, several studies indicated that glyphosate causes reduced levels of certain minerals, especially Mn and Ni, in GR crops (e.g., Zobiole et al, 2010Zobiole et al, a,b,c, 2011aZobiole et al, , 2012Bellaloui et al, 2009;Bott et al, 2008). Most of these studies were conducted in greenhouse and have been used as support for claims of decreased yields and other adverse effects of glyphosate on GR crops (e.g., Huber, 2007;Johal and Huber, 2009).…”

Section: Glyphosate-resistant Crops and Mineral Nutritionmentioning

confidence: 98%

Biotechnology: Herbicide-Resistant Crops

Duke¹

2014

Encyclopedia of Agriculture and Food Systems

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“…Glyphosate (N-phosphonomethylglycine) is an herbicide that reduced nutrient uptake and shoot biomass of glyphosate-resistant soybean under field conditions in relation to rate and growth stage (Zobiole et al 2012). Glyphosate uptake by plants increased with the orthophosphate concentration in the soil (Denis and Delrot 1993).…”

Section: Farm Management Practicesmentioning

confidence: 99%

Assessing the Plant Phosphorus Status

Haneklaus

Schnug

2016

Phosphorus in Agriculture: 100 % Zero

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Plant analysis is an approved method to assess the nutrient status of crops. Diverging values for critical nutrient values for one crop species are related among others to growth stage, sampled plant part and interpretation method. This makes it difficult for scientists and farmers alike to decide on correct values. A metadata analysis of existing symptomatological, critical nutrient, no effect and toxicological values for phosphorus with respect to different crop plants has been carried out. Values have been clustered in different groups of crops based on morphogenetic and physiological characteristics and phosphorus concentrations have been agglomerated in three major categories: severely deficient, sufficient and toxic. A total P concentration of 0.175-0.25 % proved to denote severe P deficiency in all crops. Phosphorus contents between 0.30 and 0.34 % P indicate a sufficient P supply of graminoids, legumes and oil crops. Toxic effects may occur if the phosphorus content exceeds 1 % P. Factors which affect the phosphorus uptake of crop plants such as root architecture and features which are closely related to the phosphorus status, for example resistance against diseases are outlined.

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Glyphosate effects on photosynthesis, nutrient accumulation, and nodulation in glyphosate‐resistant soybean

Cited by 105 publications

References 40 publications

Surfatante siliconado e glyphosate no controle de Brachiaria decumbens

Surfatante siliconado e glyphosate no controle de Brachiaria decumbens

Biotechnology: Herbicide-Resistant Crops

Assessing the Plant Phosphorus Status

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