Cultural practices in the control of bean root rot

O’Brien, R. Douglas; O'Hare, P.; Glass, R. J.

doi:10.1071/ea9910551

Cited by 29 publications

(16 citation statements)

References 4 publications

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“…Siddique and Loss (1999) reported that the yield of chickpea and faba bean was increased by deep seeding. Another field study showed that shallow seeding (at 2.5 cm depth) was the most effective method among the cultural practices tested (seeding and hilling depth, and fungicide use) to decrease the severity of bean root rot (Brien et al 1991); however, the impacts of those practices on the disease incidence and yield were not determined. To our knowledge, there is no previous report on how strongly planting depth interacts with the components of bean yield and FRR on a regional scale.…”

Section: Discussionmentioning

confidence: 96%

“…Because of noticeable losses to FRR on susceptible beans under environmental stresses (Harveson et al 2005), most previous studies have focused on identifying cultural practices that reduce various types of stress on bean crops. Although irrigation regime, nitrogen fertilization, plant and weed density, planting date and depth, and previous cropping history are known to be important factors affecting FRR development and bean production (Abawi and Widmer 2000;Brien et al 1991;Burke and Miller 1983;Deibert 1995;Kraft et al 1981), regional assessment of the various agronomic factors linked to FRR at different growth stages is not well documented. Although there have been a number of large-scale investigations describing the associations between agricultural and disease variables (Fernandez et al 2007;Fininsa and Yuen 2001;Rodríguez et al 2008;Sahile et al 2008;Workneh et al 1999;Zewde et al 2007), only a few large-scale studies have explored agronomic indicators of yield reductions in pathosystems (Mila et al 2003).…”

Section: Introductionmentioning

confidence: 98%

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Large-scale assessment of agricultural practices affecting Fusarium root rot and common bean yield

Naseri

Marefat

2011

Eur J Plant Pathol

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The relationships between a number of agronomic practices, Fusarium root rot (FRR) measurements and yield variables were characterized at different growth stages in 122 commercial bean fields in Zanjan, Iran. Mean FRR incidence, severity and index differed among growth stages and years. A lower FRR index at growth stage R9 and higher yields were detected in Red beans compared to Pinto and White beans. FRR severity affected the number of pods and seeds per plant. Despite the lack of an impact of initial drought on FRR and yield factors, FRR levels were higher following frequent irrigations at 2-3 days intervals than at longer intervals at R6-7. The highest FRR index at R6-7 (51.9%) and incidence at R9 (69.1%) were associated with the densest category of plant populations. Yield components differed significantly between the levels of plant density at R9. FRR levels at V3 were lower for June plantings than for May-second-week plantings. Lower FRR ratings and higher yields were detected at a seeding depth of 0-5 cm in comparison to 10-20 cm.At R9, FRR levels on beans following maize were lower than those following barley, bean, tomato or wheat. At V3, FRR severity was greater in fields that received 50-500 kg/ha of urea compared to nonfertilized fields. Greater mean FRR index at R6-7 and lower yield levels were associated with the greatest weed density compared to weed-free fields. This new information benefits the systematic understanding of interactions between bean yield, FRR and various agronomic variables at large-scale.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 98%

Large-scale assessment of agricultural practices affecting Fusarium root rot and common bean yield

Naseri

Marefat

2011

Eur J Plant Pathol

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“…Roots were excised from the plants and data collected for analysis. Data included root and crown rot severity assessed on a rating scale of 0-4 (Brien et al, 1991). where, A is the disease severity exhibited in the root/crown region due to F. oxysporum alone and B is the disease severity exhibited in the root/crown region after inoculation with both the pathogen and bacterial antagonists.…”

Section: Disease Assessmentmentioning

confidence: 99%

Screening rhizobacteria for biological control of Fusarium root and crown rot of sorghum in Ethiopia

2007

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Fusarium oxysporum Schlectend causes root and crown rot in several crops including sorghum that results in low grain yield in Ethiopia and other East African countries.Seventy-eight bacterial isolates were obtained and subsequently tested both in vitro and in the greenhouse. Of the 78 isolates tested, 23 displayed between 30 and 66.3% inhibition of in vitro mycelial growth of F. oxysporum and also showed significant root colonization ability on sorghum seedlings. These isolates were further tested for their biocontrol ability against F. oxysporum in the greenhouse. Four isolates viz. KBE5-7, KBE5-1, KBE2-5 and NAE5-5 resulted in 100% disease suppression and no symptoms of root and crown rot were observed compared to the control. The complete suppression of F. oxysporum by these isolates was also confirmed by root plating on Fusarium-

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“…Few options are available for the control of root rot diseases caused by Fusarium spp. and other fungi in beans (O'Brien et al, 1991). Seed treatments with chemical fungicides provide only a small zone of protection around the seed, which limit their efficacy (Conner et al, 2014).…”

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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Cultural practices in the control of bean root rot

Cited by 29 publications

References 4 publications

Large-scale assessment of agricultural practices affecting Fusarium root rot and common bean yield

Large-scale assessment of agricultural practices affecting Fusarium root rot and common bean yield

Screening rhizobacteria for biological control of Fusarium root and crown rot of sorghum in Ethiopia

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

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