Root rot severity and fungal populations in spring common, durum and spelt wheat, and Kamut grown under organic management in western Canada

Fernandez, M. R.; Fox, S. L.; Hucl, P.; Singh, Asheesh K.; Stevenson, F. Craig

doi:10.4141/cjps2013-359

Cited by 18 publications

(19 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diseased plants had fewer tillers resulting in reduced grain yield per plant. Similar results were reported by Fernandez et al (2014) and Duczek and Jones-Flory (1993), who found that wheat plants infected by C. sativus early in the season produced fewer tillers than those infected later in the season, which was refl ected in yield per plant. The current study also showed that the average response of wheat cultivars to CRR diff ered with the susceptibility level.…”

Section: Resultssupporting

confidence: 87%

Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Arabi

Al-Shehadah

Jawhar

2019

Hellenic Plant Protection Journal

View full text Add to dashboard Cite

The yield response of widely grown cultivars and landraces of Syrian wheat challenged with common root rot (CRR: Cochliobolus sativus) was measured by comparing plots with and without artifi cial inoculation under experimental conditions in two consecutive seasons. The results showed that response to CRR diff ered depending on the susceptibility levels of the wheat cultivars, and that the disease signifi cantly (P<0.05) reduced grain yield, number of tillers and kernel weight. The diseased plants had fewer tillers which consequently reduced grain yield per plant. Yield losses of Triticum durum cultivars were higher than those of Triticum aestivum. In addition, the T. durum landrace Horani exhibited the best level of resistance to the disease, which indicates that this landrace might be a candidate donor for resistance in future breeding programmes. As CRR can dramatically reduce wheat grain yields under favorable conditions, management practices that reduce disease severity are highly recommended.

show abstract

Section: Resultssupporting

confidence: 87%

Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Arabi

Al-Shehadah

Jawhar

2019

Hellenic Plant Protection Journal

View full text Add to dashboard Cite

show abstract

“…is abundant members of this guild. They are ubiquitous and generally abundant soil fungi involved in important crop diseases ( Fernandez, 2007 ; Fernandez et al, 2014 ). Fusarium spp.…”

Section: Discussionmentioning

confidence: 99%

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

et al. 2018

View full text Add to dashboard Cite

The association of plants and microbial communities is crucial for crop production, and host plants influence the composition of rhizosphere microbiomes. Pulse crops play an important role in the development of sustainable cropping systems, and producers in the Canadian prairies often increase the frequency of pulses in their cropping systems. In this study, we determined the shifts in the fungal community of pea (Pisum sativum L.) rhizosphere, as influenced by the frequency of pulses in rotation, using high throughput sequencing. Six cropping systems containing pea (P), lentil (Lens culinaris Medik., L), hybrid canola (Brassica napus L., C), wheat (Triticum aestivum L., W), and oat (Avena sativa L., O) in different intensities were tested. The fungal communities were assessed at the flowering stage in the fourth and fifth year of the 4-year rotations. Cropping system had a significant impact on the composition of the rhizosphere fungal community, and the effect of crop rotation sequence was greater and explained more of the variation than the effect of previous crops. The rotation with consecutive pulses (WPLP) decreased fungal evenness and increased the proportion of pathotrophs. Fusarium was a dominant and ubiquitous pathotrophic genus. Olpidium virulentus, Botrytis cinerea, Fusarium solani, F. graminearum, and Alternaria eichhorniae were generally more abundant in pulse intensive rotations (WPLP, WLOP, and WPOP), the exception being F. solani which was not promoted by lentil. Reads of O. virulentus and B. cinerea were most abundant in pea preceded by lentil followed by the reads of Mortierella elongata in pea preceded by wheat. Pea consistently had higher grain yield when grown in diversified rotations including wheat, canola/lentil, and oat than rotations with two repeated crops (canola or pea). Cropping system affected the soil physicochemical properties, and soil pH was the main driver of fungal community shift. No evidence of beneficial microorganisms involvement in plant productivity was observed, but the high abundance of pathotrophs in pulse intensified rotations suggests the possibility of pathogen buildup in the soil with increasing pulse frequency. Diversifying rotation sequences minimized disease risk and increased pea production, in this study. Careful selection of plant species appears as a strategy for the management of rhizosphere fungal communities and the maintenance of crop production system’s health.

show abstract

“…Our field experiment conducted in Poland revealed that spelt wheat plants, grown at two levels of protection, with root and stem base necrosis symptoms occurred at a higher percentage than in the case of spelt wheat grown in western Canada [24], but at a lower percentage than common wheat 'Tonacja' grown under the above-mentioned conditions with complex protection [15]. Species of the genus Fusarium proved to be the cause of damage to spelt wheat plants grown at the two levels of protection.…”

Section: Discussionmentioning

confidence: 78%

“…The species B. sorokiniana, isolated from the roots and stem bases of T. aestivum ssp. spelta in the years 2007-2009, is recognized as a wheat pathogen [15,24,43,[51][52][53]. In western Canada, root and crown rot is mostly caused by B. sorokiniana together with Fusarium spp.…”

Section: Experimental Combinationmentioning

confidence: 99%

The occurrence of fungi on roots and stem bases of Triticum aestivum ssp. spelta L. Thell. grown under two levels of chemical protection and harmfulness of Fusarium graminearum Schwabe to seedlings of selected genotypes

et al. 2016

View full text Add to dashboard Cite

Investigations were carried out in 2007–2009 on the plots of the Felin Experimental Station belonging to the University of Life Sciences in Lublin, Poland. The studies comprised two breeding lines of spelt wheat (Triticum aestivum ssp. spelta L. Thell.) – STH 3 and STH 715. Two levels of chemical protection were applied in the cultivation with minimal and complex protection. Infection of winter spelt wheat roots and stem bases was recorded in each growing season at hard dough stage (87 in Zadok’s scale). After 3 years of the study, the mean values of disease indexes for the analyzed spelt wheat lines in the experimental treatment with minimal protection were 28.53 and 40.30 respectively for STH 3 and STH 715. In the experimental combination with complex protection, after 3 years of the study the mean values of disease indexes ranged from 25.96 (STH 3) to 26.90 (STH 715). The mycological analysis showed that Fusarium spp., especially F. culmorum, caused root rot and necrosis of stem bases of spelt wheat in the experimental combination with minimal and complex protection. Moreover, Fusarium avenaceum and Bipolaris sorokiniana caused root rot and necrosis of stem bases of spelt wheat. Investigation carried out in a growth chamber on susceptibility of seedlings of three lines of spelt wheat (LO 2/09/n/2, LO 5/09/13/3, LO 5/09/5/4) to infection with Fusarium graminearum No. 8 and F. graminearum No. 45 showed that the genotypes did not differ in their susceptibility. All of them were susceptible, as indicated by high values of the disease indexes. No interaction was found between genotypes and strains of the fungus. This indicates the differential pathogenicity of Fusarium graminearum species.

show abstract

Root rot severity and fungal populations in spring common, durum and spelt wheat, and Kamut grown under organic management in western Canada

Cited by 18 publications

References 24 publications

Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

The occurrence of fungi on roots and stem bases of Triticum aestivum ssp. spelta L. Thell. grown under two levels of chemical protection and harmfulness of Fusarium graminearum Schwabe to seedlings of selected genotypes

Contact Info

Product

Resources

About