Effects of planting date and earliness on deoxynivalenol contamination in barley under natural epidemic conditions

Choo, T. M.; Martin, Richard A.; Savard, Marc E.; Blackwell, Barbara A.

doi:10.4141/cjps2013-369

Cited by 12 publications

(12 citation statements)

References 21 publications

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“…Management of planting date, with emphasis on early planting, was demonstrated to be important for Fusarium disease control in both wheat and maize cultivars [30,266]. The sowing date and the accurate choice of cereal varieties and maize hybrid, referred to the length of cultural cycle, determine the environmental conditions to which the crop is exposed during silking and grain filling to Fusarium inoculum and infection.…”

Section: Fusarium Disease and Toxins Managementmentioning

confidence: 99%

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

2016

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Fusarium diseases of small grain cereals and maize cause significant yield losses worldwide. Fusarium infections result in reduced grain yield and contamination with mycotoxins, some of which have a notable impact on human and animal health. Regulations on maximum limits have been established in various countries to protect consumers from the harmful effects of these mycotoxins. Several factors are involved in Fusarium disease and mycotoxin occurrence and among them environmental factors and the agronomic practices have been shown to deeply affect mycotoxin contamination in the field. In the present review particular emphasis will be placed on how environmental conditions and stress factors for the crops can affect Fusarium infection and mycotoxin production, with the aim to provide useful knowledge to develop strategies to prevent mycotoxin accumulation in cereals.Keywords: Fusarium toxins; Fusarium disease; mycotoxin regulation; mycotoxin management Mycotoxigenic Fusarium and Fusarium-Related DiseasesFusarium is one of the most economically important genera of phytopathogenic fungi. Several Fusarium species can infect small grain cereals (wheat, barley and oat) and maize; the predominant species can vary according to crop species involved, geographic region and environmental conditions [1,2]. Fusarium toxins are secondary metabolites produced by toxigenic fungi that naturally contaminate cereals, they represent a source of grave concern in cereals and cereal-based products, resulting in harmful contamination of foods and feedstuffs [3].Fusarium diseases that affect cereal crops are caused by several individual Fusarium or more commonly, co-occurring species. Fusarium spp. can cause indirect losses resulting from seedling blight or reduced seed germination, or direct losses such as seedling foot and stalk rots; however, the most important diseases in cereals due to a severe reduction in yield and quality are head blight of small cereals as wheat, barley and oat, and ear rot of maize [4,5]. The coexistence of different Fusarium spp. in the field is a normal situation and although the number of detectable species can be high [6], only some of them are pathogenic, especially under suitable climatic conditions. The composition of species involved in the Fusarium disease complex is dynamic [7]. The species comprising a Fusarium community associate with each other and this cohabitation is particularly affected by climatic factors such as temperature and moisture. Moreover, evidences indicates that the environmental conditions that favour the infection process can differ from those that affect colonization [8]; therefore, the relationship among Fusarium species may change over time during the infection process.

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Section: Fusarium Disease and Toxins Managementmentioning

confidence: 99%

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

2016

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“…Both AC Klinck (Choo et al, 2001) and AC Legend (Ho et al, 2000) are yellow, six-row barley cultivars; while CH9403-2 is a selection from a Duke//Duke/GH4 cross in which GH4 is a non-adapted black accession. Both yellow parents AC Klinck and AC Legend had high grain yield in eastern Canada, but they were susceptible to DON accumulation (Choo et al, 2014). Duke is yellow, six-row barley cultivar and it was very susceptible to DON accumulation (Thin Meiw Choo, unpublished data, 2007;Richard Martin, unpublished data, 2007).…”

Section: Plant Materialsmentioning

confidence: 99%

Black Barley as a Means of Mitigating Deoxynivalenol Contamination

et al. 2015

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Fusarium head blight (FHB) is a destructive disease of barley (Hordeum vulgare L.) in many countries. The disease can result in mycotoxin contamination such as deoxynivalenol (DON) in the grain. The objective of this study was to determine if black barley is more resistant to DON accumulation than yellow barley as the former contains a high level of phenolic compounds. In one experiment, 100 recombinant inbred lines (RILs) were derived from each of the two barley crosses: AC Klinck/CH9403‐2 and AC Legend/CH9403‐2 with half of them being black and the other half yellow. These lines along with their parents were evaluated for resistance to DON accumulation under natural infection conditions at Harrington (Prince Edward Island) for 3 yr (2005–2007). They were also evaluated for resistance to FHB incidence and DON accumulation under artificial inoculation conditions at Ottawa (Ontario) in 2005 and 2006 and at Hangzhou (China) in 2005–2006. Black RILs on average contained 17 to 59% less DON than yellow RILs under natural conditions in both crosses in two tests. Black RILs had 2 to 20% lower FHB incidence than yellow RILs in both crosses in two tests and contained 16 to 18% less DON in one test. In another experiment, 26 hulless accessions were evaluated at Ottawa in 2011 and 2012. Black accessions on average contained 53% less DON than the yellow accessions in 2012 and they contained 46% less DON when the DON data were combined over 2 yr. In conclusion, black barley can be used as a means of mitigating DON contamination.

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“…The disease burden can be directly correlated to the amount of primary inoculum present in monocyclic epidemics (Pirgozliev et al ., ). Management of sowing date, bearing in mind the importance of early sowing, has proven to be significant for FHB control in barley and wheat crops (Choo et al ., ). The sowing date and the selection of wheat cultivar must be considered in association with the climatic conditions to which the crop might be exposed during anthesis and grain filling.…”

Section: Control By Cultural Methodsmentioning

confidence: 97%

Integrated control of fusarium head blight and deoxynivalenol mycotoxin in wheat

et al. 2017

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Fusarium head blight (FHB), a devastating disease that affects wheat, is caused by a complex of Fusarium species. The overall impact of Fusarium spp. in wheat production arises through the combination of FHB and mycotoxin infection of the grain harvested from infected wheat spikes. Spike infection occurs during opening of flowers and is favoured by high humidity or wet weather accompanied with warm temperatures. Available possibilities for controlling FHB include the use of cultural practices, fungicides and biological approaches. Three cultural practices are expected to be of prime importance in controlling FHB and the production of mycotoxins: soil preparation method (deep tillage), the choice of the preceding crop in the rotation and the selection of appropriate cultivar.

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Effects of planting date and earliness on deoxynivalenol contamination in barley under natural epidemic conditions

Cited by 12 publications

References 21 publications

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

Black Barley as a Means of Mitigating Deoxynivalenol Contamination

Integrated control of fusarium head blight and deoxynivalenol mycotoxin in wheat

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