Distribution and prediction of<i>Fusarium</i>species associated with maize ear rot in Ontario

Vigier, B.; Reid, L. M.; Seifert, Keith A.; Stewart, Donald C.; Hamilton, R. I.

doi:10.1080/07060669709500574

Cited by 108 publications

(67 citation statements)

References 9 publications

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“…As a result, little inoculum was available for infection in corn. This result is in agreement with previous findings by Reid et al (1995) and Vigier et al (1997) indicating that lower F. graminearum infection levels are observed during dry years in eastern Canada.…”

Section: Resultssupporting

confidence: 83%

“…were recovered from the 9600 kernels sampled in 2001 and 2002 ( Neish et al (1983) and Vigier et al (1997), except that F. verticilloides was not detected.…”

Section: Resultsmentioning

confidence: 99%

“…The wet weather can delay the silage corn from being harvested at the optimum time. In addition, the moist conditions accentuate the development of fusarium ear rot and the production of mycotoxins in the kernel (Miller et al 1995;Reid et al 1996aReid et al , 1996bReid et al , 1999Sutton 1982;Vigier et al 1997).…”

Section: Introductionmentioning

confidence: 99%

“…were associated with grain corn in Ontario (Neish et al 1983;Vigier et al 1997 (Xue et al 2004), and the objective of this research was to investigate the occurrence and prevalence of Fusarium spp. in several silage corn hybrids according to the effect of time of harvest.…”

Section: Introductionmentioning

confidence: 99%

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Effect of time of harvest on the incidence of Fusarium spp. in kernels of silage corn

Xue

Baoluo

Clear³

et al. 2006

phyto

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The effect of time of harvest (at 75, 50 and 25% of milkline) on the incidence of kernel-borne Fusarium spp. was examined in four silage corn (Zea mays) hybrids (MAIZEX Leafy 4, NK BRAND Enerfeast 1, PIO-NEER 37M81 and MYCOGEN TMF94) in Ottawa, Ontario, in 2001 and2002. Eleven Fusarium species were isolated over the 2 yr. Fusarium subglutinans was the dominant species recovered from 28.8% of the kernels. Other frequently isolated species included F. oxysporum (2.6%), F. graminearum (2.5%), F. proliferatum (0.3%) and F. sporotrichioides (0.2%). Trace amounts (< 0.1%) of the remaining six species, F. avenaceum, F. crookwellense, F. culmorum, F. equiseti and F. solani, were recovered from the kernels. When the kernels were harvested at 75, 50 and 25% of milkline, the incidence of F. subglutinans increased from 20.9 to 26.7 and to 38.7%, respectively; that of F. graminearum increased from 1.7 to 2.9 and to 3.1%; and for the total of the five main Fusarium species it increased from 28.7 to 32.2 and to 42.3%. Incidence of the other species was not affected by harvesting date. Of the four silage corn hybrids, NK BRAND Enerfeast1 had a significantly lower incidence of Fusarium species in kernels than the other hybrids, indicating a genotypic variation in resistance to kernel-borne infection by Fusarium species.Keywords: Corn, Fusarium spp., silage, time of harvest, Zea mays. . avenaceum, F. crookwellense, F. culmorum, F. equiseti et F. solani, ont aussi été détectées sur les grains. L'incidence du F. subglutinans a augmenté respectivement de 20,9 à 26,7 puis à 38,7 % en fonction du temps de récolte (75, 50 et 25 % de l'état laiteux), tandis qu'elle a augmenté de 1,7 à 2,8 puis à 3,1 % pour le F. graminearum et de 28,7 à 32,2 puis à 42,3 % pour les cinq espèces principales confondues. L'incidence des autres espèces n'a pas été affectée par les dates de récolte. Parmi les quatre hybrides à l'essai, l'hybride commercial NK BRAND Enerfeast1 a eu la plus basse incidence d'espèces de Fusarium dans le grain, ce qui indique qu'il existe une variation géno-typique de la résistance des grains aux infections causées par les espèces de Fusarium. [Effet du temps de récolte sur la présence des espèces de

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Section: Resultssupporting

confidence: 83%

“…were recovered from the 9600 kernels sampled in 2001 and 2002 ( Neish et al (1983) and Vigier et al (1997), except that F. verticilloides was not detected.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of time of harvest on the incidence of Fusarium spp. in kernels of silage corn

Xue

Baoluo

Clear³

et al. 2006

phyto

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“…Environmental factors have a significant influence on the occurrence of fungal species and disease severity (Vigier et al 1997). Temperature and rainfall affect the production and dispersal of inoculum and the infection of wheat spikes and stem bases, which in turn determine the occurrence and severity of diseases (Pettitt et al 1996).…”

Section: Fungal Infection Of Malt Barley Kernels In Slovak Republicmentioning

confidence: 99%

Fungal infection of malt barley kernels in Slovak Republic

Roháčik¹,

Hudec²

2007

Plant Prot. Sci.

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Roháčik T., Hudec K. (2007): Fungal infection of malt barley kernels in Slovak Republic. Plant Protect. Sci., 43: 86-93.The influence of agro-environmental factors (year, cultivar and climatic factors) on the occurrence of fungi on kernels of malt barley, species spectrum and seedling viability were evaluated during 2004 and 2005. The seeds (asymptomatic, fraction above 2.5 mm) originated from different cultivars and locations of the Slovak Republic. Surface sterilisation of the kernels before isolation of the fungi was the key factor for objective results on the occurrence of Fusarium species. Screening of non-sterilised kernels gave a different spectrum of fungal species and their frequency and may lead to distorted results. The most frequent species isolated from barley kernels were Alternaria spp., cochliobolus sativus, epicoccum nigrum, Fusarium spp. and Pyrenophora teres. The results confirmed that agro-environmental factors (mostly year and microclimatic conditions) had a major influence on infection by and population structure of fungi in malt barley kernels. The total sample infection by Fusarium spp. was significantly higher at localities with higher altitude and in 2005. The infection level varied from 0% to 20%, in some localities in 2005 it exceeded 20%. The widest fungal species spectrum was recorded in the locations with high level of kernel infestation. In localities with lower infection, the species spectrum was narrower.

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References

2006

The Fusarium Laboratory Manual

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Distribution and prediction ofFusariumspecies associated with maize ear rot in Ontario

Cited by 108 publications

References 9 publications

Effect of time of harvest on the incidence of Fusarium spp. in kernels of silage corn

Effect of time of harvest on the incidence of Fusarium spp. in kernels of silage corn

Fungal infection of malt barley kernels in Slovak Republic

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