Agronomic considerations for reducing deoxynivalenol in wheat grain

Schaafsma, A. W.; Ilinic, L. Tamburic; Miller, J. David; Hooker, David C.

doi:10.1080/07060660109506941

Cited by 125 publications

(93 citation statements)

References 14 publications

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“…Most studies on FHB have documented a significant increase in infection in the case of minimum tillage or no-till treatments (DillMacky and Jones 2000; Champeil et al 2004b;Koch et al 2006;Maiorano et al 2008), but in certain experiments, similarly to our results, no significant effects on FHB or DON have been observed (Schaafsma et al 2001).…”

Section: Discussionsupporting

confidence: 76%

Soil Management Technologies and Mycotoxin Contamination of Wheat and Barley Grain

Matušinsky¹,

Váňová²,

Tvarůžek³

et al. 2016

Cereal Research Communications

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Fusarium head blight caused by a complex of Fusarium species is widespread across the world and ranks among the most serious diseases in cereals. Long-term field experiments were set up to evaluate the effects of preceding crop and soil management methods on Fusarium mycotoxin (DON, deoxynivalenol) contamination of winter wheat and spring barley grain. Winter wheat and spring barley were cultivated at two locations in the Czech Republic (A: Ivanovice na Hané during 2002-2014, and B: Žabčice during 2007-2014) with preceding crops (A) alfalfa, maize, and pea; and (B) alfalfa (only for wheat), sugar beet (only for barley), and maize. Different soil management methods also were used: (A) 22 cm tillage, 15 cm tillage, 10 cm chisel, and direct drilling; and (B) 22 cm tillage, 10 cm chisel, and direct drilling. Mycotoxin content in harvested grain was analysed using ELISA. At both locations in the experiments with both wheat and barley, year had a significant effect on mycotoxin content in grain. Preceding crop was another significant factor in wheat experiments at both locations, with DON content in grain higher with maize as the preceding crop than in the cases of other preceding crops. Soil management method had a significant effect only on mycotoxin content in wheat grain grown at Žabčice, and the highest DON content was determined in the chisel variant, in which case a large amount of harvest residue remained on the soil surface or was only partially incorporated.

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Section: Discussionsupporting

confidence: 76%

Soil Management Technologies and Mycotoxin Contamination of Wheat and Barley Grain

Matušinsky¹,

Váňová²,

Tvarůžek³

et al. 2016

Cereal Research Communications

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“…The FHB emerged in Brazil as an important disease in recent years promoting serious yield losses (Panisson et al, 2003). Wheat contamined with deoxynivalenol (DON) in excess of permitted levels results in rejection of sale or severe price dockage by millers and other grain buyers in some countries that have adopted DON regulation (Schaafsma et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

A risk infection simulation model for fusarium head blight of wheat

Ponte¹,

Mauricio²,

Fernandes

et al. 2005

Fitopatol. bras.

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Fusarium Head Blight (FHB) is a disease of great concern in wheat (Triticum aestivum). Due to its relatively narrow susceptible phase and environmental dependence, the pathosystem is suitable for modeling. In the present work, a mechanistic model for estimating an infection index of FHB was developed. The model is process-based driven by rates, rules and coefficients for estimating the dynamics of flowering, airborne inoculum density and infection frequency. The latter is a function of temperature during an infection event (IE), which is defined based on a combination of daily records of precipitation and mean relative humidity. The daily infection index is the product of the daily proportion of susceptible tissue available, infection frequency and spore cloud density. The model was evaluated with an independent dataset of epidemics recorded in experimental plots (five years and three planting dates) at Passo Fundo, Brazil. Four models that use different factors were tested, and results showed all were able to explain variation for disease incidence and severity. A model that uses a correction factor for extending host susceptibility and daily spore cloud density to account for post-flowering infections was the most accurate explaining 93% of the variation in disease severity and 69% of disease incidence according to regression analysis.

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“…Aufhammer et al (2000) demonstrated that N fertilization had no significant influence on FHB severity or mycotoxin biosynthesis. Schaafsma et al (2001) and Oldenburg et al (2007) reported a significant increase in the severity of FHB under the influence of N fertilization before heading, and they attributed those effects to changes in agronomic practices and a specific microclimate. Lacko-Bartošová and Kobida (2011) noted the highest rate of wheat grain infection with Fusarium in a conventional farming system with mineral fertilization but no fungicides, a lower infection rate in a conventional system with both mineral fertilization and fungicides, and the lowest infection rate in an organic system.…”

Section: Results Ans Discussionmentioning

confidence: 99%

“…Blandino et al (2012) described the synergistic effects of the following factors: susceptibility to infections, forecrop, cultivation system (conventional tillage, direct seeding -no-till), fungicide treatments to minimize the risk of Fusarium infections, and the level of DON accumulation in grain. Schaafsma et al (2001) demonstrated that the accumulation of mycotoxins in wheat grain was far more likely to be influenced by the rates of nitrogen fertilization than by weather conditions during the growing season. Manganese plays an important role in many metabolic processes in plants -it participates in enzymatic reactions and the biosynthesis of lignins and suberins (Marschner et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Fusarium Head Blight and Mycotoxin Concentrations in a Moderately Resistant Winter Wheat Cultivar Under Different Nutrient Regimes

Sobieraj

Cwalina-Ambroziak

WaÅ›kiewicz³

et al. 2017

JAA

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I S S N 2349-0837 V o l u m e 7 N u m b e r 3 J o u r n a l o f A d v a n c e s i n A g r i c u l t u r e 1083 | P a g e h t t p s : / / c i r w o r l d . c o m S e p t e m b e r , 2 0 1 7 ABSTRACTWinter wheat cv. Boomer was grown in a field-plot experiment in Tomaszkowo near Olsztyn. During the growing season, the severity of Fusarium head blight (FHB was evaluated on a 5-point scale. The quantitative and qualitative composition of Fusarium fungi colonizing wheat grain was evaluated in a laboratory. The content of Fusarium mycotoxins (deoxynivalenol, DON, nivalenol, NIV, zearalenone, ZEA, fumonisins FB1 and FB2) and ergosterol (ERG) in grain was determined by high-performance liquid chromatography (HPLC). The relationships between the severity of FHB and mycotoxin concentrations in grain were determined by calculating Pearson's correlation coefficient r in the CORR SAS procedure. The effect of microelement fertilizers on the severity of FHB, the species composition of Fusarium fungi colonizing winter wheat grains and mycotoxin concentrations in grain were determined.Analyses of winter wheat spikes revealed that FHB was less severe in 2012 (healthy ears in the NPK+Mn treatment and the lowest value of the infection index 1% was noted in the absolute control treatment) than in 2013 (the most evident symptoms of FHB in the NPK+Nano-Gro treatment -infection index of approx. 12%). Mineral fertilization, i.e. NPK, NPK with microelements (Cu, Zn, Mn) and NPK with the Nano-Gro® organic growth stimulator, reduced the production of trichothecenes, ZEA and fumonisins B1 and B2 in both years of the study. The highest levels of DON and NIV were noted in winter wheat grain in 2012 in control, control/NPK, NPK+Cu and NPK+Mn treatments. Toxin-producing fungi: Fusarium culmorum, F. poae, Gibberella avenacea, G. zeae were isolated most frequently from winter wheat grain in the above treatments. The severity of FHB was not significantly correlated with the concentrations of ERG, FB1, FB2 and ZEA in grain. A negative correlation was observed between the severity of FHB vs. DON and NIV levels in grain.

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Agronomic considerations for reducing deoxynivalenol in wheat grain

Cited by 125 publications

References 14 publications

Soil Management Technologies and Mycotoxin Contamination of Wheat and Barley Grain

Soil Management Technologies and Mycotoxin Contamination of Wheat and Barley Grain

A risk infection simulation model for fusarium head blight of wheat

Fusarium Head Blight and Mycotoxin Concentrations in a Moderately Resistant Winter Wheat Cultivar Under Different Nutrient Regimes

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