Associations of biophysical factors with faba bean root rot (Fusarium solani) epidemics in the northeastern highlands of Ethiopia

Belete, Eshetu; Ayalew, Amare; Ahmed, Seid

doi:10.1016/j.cropro.2013.05.003

Cited by 29 publications

(18 citation statements)

References 9 publications

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“…Scheuemann et al (2012) suggested that disease occurrence and severity may vary by year, location and even within field depending on environmental conditions and crop management practices. In contrast, Belete et al (2013) did not find any association between elevation and Fusarium root rot disease of Fabae beans in Northern Ethiopia.…”

Section: Discussionmentioning

confidence: 43%

Prevalence of angular leaf spot disease and sources of resistance in common bean in eastern Democratic Republic of Congo

Kijana¹,

Abang²,

Edema³

et al. 2017

Afr. Crop Sci. J.

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Section: Discussionmentioning

confidence: 43%

Prevalence of angular leaf spot disease and sources of resistance in common bean in eastern Democratic Republic of Congo

Kijana¹,

Abang²,

Edema³

et al. 2017

Afr. Crop Sci. J.

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“…This might be in fields with dense weed populations; there was competition for space, moisture, and soil nutrients as a result of which the faba bean plants were less vigorous and prone to the disease. Similarly, white rot of garlic [38] and root rot of faba bean [39] have been reported that high weed density in non-weeded fields increased disease severity. Besides, the presence of a high weed population in a field increases the humidity within the crop canopy (microclimate) which is more favorable for B. fabae infection and the development of chocolate spot disease epidemics [22].…”

Section: Discussionmentioning

confidence: 94%

Association of Chocolate Spot and Faba Bean Rust Epidemics with Climate Change Resilient Cultural Practices in Bale Highlands, Ethiopia

Eshetu

Bimrew

Shifa

2018

Advances in Agriculture

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Field survey was conducted in south eastern Ethiopia to determine the disease intensity of chocolate spot and rust and to investigate the association of disease intensity (incidence and severity) with environmental factors and crop cultural practices. A total of 280 faba bean fields were surveyed in eight districts, and type of cropping system, weed management practices, crop growth stage, previous crop in the field, and sowing date were recorded. The associations of disease intensity with independent variables were evaluated using logistic regression model. Mean disease incidence of chocolate spot varied from 70.9 to 93.2% in most fields while percentage severity index (PSI) ranged from 10.5 to 47.1%. In a reduced multiple variable model, chocolate PSI ≤ 30% showed high probability of association with mixed cropping system, good weed management practices, late planting, and when faba bean was rotated with vegetables and cereals. The mean disease incidence of faba bean rust was varied from 23.6 to 78.2%, while the mean PSI of rust was varied from 4.8 to 37.9%. In Gasera, Dinsho, and Agarfa districts, poor weed management practices, fields planted in the month of July, and when previous crop was legume had a high probability of association to (>20) rust PSI in a multiple variable reduced model. In contrast, soil types, fertilizer applied, and fungicides sprayed were not associated with disease intensity. The present study has identified cropping system, planting date, previous crop, district, and weed management practices as important variables that influence faba bean chocolate spot and rust epidemics in diversified fields. Therefore, proper weeding management practices, late planting, crop rotation habit, and other related farm practices should be carried out to reduce chocolate spot and rust impact until resistant faba bean genotypes are developed and distributed to the area.

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“…are soil borne plant pathogens representing a major threat to grain legumes crops (Patkowska et al, 2007;Pierre et al, 2016). The Fusarium diseases consist on a loss of seed germination capacity, reduced emergence, vascular wilt, root rot, seed decay rot in host plants that could be responsible of up to 100% yield loss in susceptible cultivars (Patkowska et al, 2007;de Toledo-Souza et al, 2012;Belete et al, 2013). Among Fusarium spp., F. culmorum is mentioned among the major fungal pathogens of beans associated to severe damages as described above (Tseng et al, 1995;Pięta et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

The bean rhizosphere Pseudomonas aeruginosa strain RZ9 strongly reduces Fusarium culmorum growth and infectiveness of plant roots

Haddoudi

Sendi

Batnini

et al. 2017

Span. j. agric. res.

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A faba bean rhizospheric Pseudomonas aeruginosa isolate RZ9 was used for studying its antifungal activity and protecting effects of faba bean and common bean against the root pathogen Fusarium culmorum strain MZB47. The dual culture tests showed that RZ9 inhibits MZB47 in vitro growth by 56%. When mixing RZ9 cell suspension with MZB47 macroconidia at equal proportion, the macroconidia viability was reduced with 70%. Pathogenicity tests conducted in sterile conditions showed that MZB47 caused an intense root rotting in faba bean 'Aquadulce' plantlets and a slight level in common bean 'Coco blanc'. This was associated to significant decreases in plant growth only in 'Aquadulce', reducing shoot dry weight (DW) by 82% and root DW by 70%. In soil samples, MZB47 caused severe root rotting and induced significant decreases in shoot DW (up to 51%) and root DW (up to 60%) for both beans. It was associated to a decrease in nodule number by 73% and 52% for faba bean and common bean, respectively. Biocontrol assays revealed that the inoculation of RZ9 to MZB47-treated plantlets enhanced shoot DWs (25% and 110%) and root DWs (29% and 67%), in faba bean and common bean, respectively. Moreover, root rotting levels decreased and nodule number increased in treated compared to untreated plantlets. Collected data highlighted the disease severity of F. culmorum and demonstrated the potential of using RZ9 in controlling Fusaria root diseases in beans. Thereby, the current study represents the first report on the biocontrol effectiveness of P. aeruginosa against F. culmorum in beans.Additional keywords: biocontrol; root rot; Vicia faba; Phaseolus vulgaris.

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Associations of biophysical factors with faba bean root rot (Fusarium solani) epidemics in the northeastern highlands of Ethiopia

Cited by 29 publications

References 9 publications

Prevalence of angular leaf spot disease and sources of resistance in common bean in eastern Democratic Republic of Congo

Prevalence of angular leaf spot disease and sources of resistance in common bean in eastern Democratic Republic of Congo

Association of Chocolate Spot and Faba Bean Rust Epidemics with Climate Change Resilient Cultural Practices in Bale Highlands, Ethiopia

The bean rhizosphere Pseudomonas aeruginosa strain RZ9 strongly reduces Fusarium culmorum growth and infectiveness of plant roots

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