Influence of plant growth regulators and nitrogen on Fusarium head blight of wheat (Triticum aestivum L. Var. Kalysona)

Maji, E. A.; Imolehin, E. D.

doi:10.1556/aagr.50.2002.1.3

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…The ears of shortened plants are closer to the ground and thus an infection through ejected ascospores is favoured (Maji & Imolehin 2002). The modified crop characteristic was described by Bernhoft et al (2012), who assumed that plants become bushier, which enhances the humidity and the spreading of Fusarium species.…”

Section: Discussionmentioning

confidence: 99%

Fusarium and mycotoxin spectra in Swiss barley are affected by various cropping techniques

Schöneberg

Martin

Wettstein

et al. 2016

Food Additives & Contaminants: Part A

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Fusarium head blight is one of the most important cereal diseases worldwide. Cereals differ in terms of the main occurring Fusarium species and the infection is influenced by various factors, such as weather and cropping measures. Little is known about Fusarium species in barley in Switzerland, hence harvest samples from growers were collected in 2013 and 2014, along with information on respective cropping factors. The incidence of different Fusarium species was obtained by using a seed health test and mycotoxins were quantified by LC-MS/MS. With these techniques, the most dominant species, F. graminearum, and the most prominent mycotoxin, deoxynivalenol (DON), were identified. Between the three main Swiss cropping systems, Organic, Extenso and Proof of ecological performance, we observed differences with the lowest incidence and toxin accumulation in organically cultivated barley. Hence, we hypothesise that this finding was based on an array of growing techniques within a given cropping system. We observed that barley samples from fields with maize as previous crop had a substantially higher F. graminearum incidence and elevated DON accumulation compared with other previous crops. Furthermore, the use of reduced tillage led to a higher disease incidence and toxin content compared with samples from ploughed fields. Further factors increasing Fusarium infection were high nitrogen fertilisation as well as the application of fungicides and growth regulators. Results from the current study can be used to develop optimised cropping systems that reduce the risks of mycotoxin contamination.

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Section: Discussionmentioning

confidence: 99%

Fusarium and mycotoxin spectra in Swiss barley are affected by various cropping techniques

Schöneberg

Martin

Wettstein

et al. 2016

Food Additives & Contaminants: Part A

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“…Ces résultats sont en accord avec ceux de Fauzy et Paulitz (1994) qui avaient observé que l'application d'azote n'a pas eu d'effet sur le développement de la fusariose chez le blé cultivé en serre sous inoculation artificielle. D'après Maji et Imolehin (2002), Oldenburg (2004) et Fernandez et al (2005, l'application d'azote n'a également pas d'effet sur le développement de la fusariose chez le blé. Des essais effectués avec l'avoine ont également démontré que des fertilisations variant de 0 à 160 kg N@ha -1 avaient peu d'influence sur le contenu en désoxynivalénol (Hietaniemi et al 2004).…”

Section: Résultats Et Discussionunclassified

“…D'après Fauzy et Paulitz (1994), Maji et Imolehin (2002), Oldenburg (2004) et Fernandez et al (2005, l'application d'azote n'a pas eu d'effet sur le développement de la fusariose chez le blé. Cependant, certains travaux ont indiqué qu'une augmentation de la fertilisation azotée favorisait l'incidence de la fusariose chez les céréales (Martin et al 1991;Lemmens et al 2004;Heier et al 2005).…”

Section: Introductionunclassified

Impact du précédent cultural et de la fertilisation azotée sur la teneur en désoxynivalénol chez l’orge

Pageau

Lafond

Lajeunesse

et al. 2008

Canadian Journal of Plant Pathology

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De nombreuses maladies affectent les céréales, mais la fusariose associée à la présence du champignon Fusarium graminearum est probablement une des maladies les plus redoutées chez l'orge (Hordeum vulgare) au Québec. En plus de la réduction des rendements en grains, ce champignon produit la toxine désoxynivalénol (DON) qui peut affecter la santé animale. Une expérience a été réalisée pendant 4 années (2002 à 2005) à la Ferme de recherches d'Agriculture et Agroalimentaire Canada à Normandin afin d'évaluer l'impact de quatre précédents culturaux (orge, pois sec, soya et trèfle rouge) et de quatre niveaux de fertilisation azotée (0, 40, 80 et 120 kg@ha -1 ) sur la teneur en DON de l'orge. L'effet du précédent cultural sur la teneur en DON de l'orge a été significatif pendant 3 années sur 4. Ainsi, en 2002Ainsi, en , 2003Ainsi, en et 2005, les contenus en toxine dans le grain étaient significativement plus élevés lorsque le précédent cultural était l'orge comparativement à un précédent cultural de pois sec, de soya ou de trèfle rouge. En 2003, les teneurs en DON étaient particulièrement élevées. Ainsi, lorsque l'orge était cultivée sur un précédent d'orge, la teneur moyenne en toxine était de 22,5 mg@kg -1 . Les teneurs en DON les moins élevées étaient observées lorsque la céréale avait été ensemencée sur un précédent de pois sec, avec une teneur moyenne de 10,3 mg@kg -1 . Les teneurs en DON de l'orge cultivée sur un précédent de soya ou de trèfle rouge étaient respectivement de 15,2 et 13,4 mg@kg -1 . En 2004, le précédent cultural n'a eu aucun effet significatif sur le contenu en toxine. De même, pendant les 4 années de l'essai, la fertilisation azotée n'a pas eu d'effet significatif sur le contenu en DON de l'orge.Mots-clés : fusariose, orge, désoxynivalénol, pratiques culturales.Abstract: Many diseases affect cereals, but fusarium head blight associated with the presence of the fungus Fusarium graminearum is probably one of the most feared diseases in barley (Hordeum vulgare) production in Quebec. In addition to reducing grain yields, the fungus produces the toxin deoxynivalenol (DON), which can affect the health of livestock. An experimental study was conducted over 4 years (2002)(2003)(2004)(2005) at the Research farm of Agriculture and Agri-Food Canada in Normandin to determine the impact of four previous crops (barley, dry pea, soybean, and red clover) and four nitrogen fertilization levels (0, 40, 80, and 120 kg@ha -1 ) on DON content of barley. The effect of the preceding crop on DON content of barley was significant for 3 years out of 4. Thus, in 2002Thus, in , 2003Thus, in , and 2005, the toxin contents were significantly higher when the previous crop was barley compared with dry pea, soybean, or red clover. In 2003, the DON contents were particularly high. For example, when barley was grown the previous year, the average toxin content was 22.5 mg@kg -1 . The lowest DON contents were obtained when barley was seeded on a previous dry pea crop with an average content of 10.3 mg@kg -1 . The DON conte...

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“…Meridian is shorter than Semper, so the ears are closer to the ground which facilitates an infection through ejected ascospores from the soil surface as it was observed in wheat (Maji and Imolehin 2002).…”

Section: Discussionmentioning

confidence: 96%

Infection conditions of Fusarium graminearum in barley are variety specific and different from those in wheat

et al. 2018

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Fusarium head blight is one of the most noxious cereal diseases. Worldwide, F. graminearum (FG) and the mycotoxin deoxynivalenol (DON) is the most dominant species/mycotoxin in barley and wheat. Barley is often produced as on farm feed and thus routine mycotoxin analyses similar to those of cereals for human consumption are not performed. Hence, an early prediction of mycotoxin levels is important for farmers to minimise the risk of contaminated feed but also of contaminated cereals entering the cereal supply chain. Therefore, climate chamber experiments with artificial FG infection of barley investigating the influence of different temperatures (10°C, 15°C, 20°C) and durations (4 h, 8 h, 12 h) at 99% relative humidity were conducted to accumulate data to develop a forecasting system. An up to three times higher DON contamination in the 15°C treatments for the feed barley variety Ascona was detected compared with the 10°C and 20°C treatments. For the malting barley variety Concerto, the prolonged humidity durations had a stronger effect under all tested temperatures and resulted in up to two times higher DON contaminations. In addition, field experiments where spore deposition during anthesis as well as disease incidence, fungal amount and mycotoxins were observed, showed that the overwintered straw treatment resulted, depending on the year, in a three times higher FG incidence and DON content compared with the control and freshly inoculated straw treatment.

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Influence of plant growth regulators and nitrogen on Fusarium head blight of wheat (Triticum aestivum L. Var. Kalysona)

Cited by 4 publications

References 11 publications

Fusarium and mycotoxin spectra in Swiss barley are affected by various cropping techniques

Fusarium and mycotoxin spectra in Swiss barley are affected by various cropping techniques

Impact du précédent cultural et de la fertilisation azotée sur la teneur en désoxynivalénol chez l’orge

Infection conditions of Fusarium graminearum in barley are variety specific and different from those in wheat

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