Effect of Extended Crop Rotations on Incidence of Black Dot, Silver Scurf, and Verticillium Wilt of Potato

Johnson, Dennis A.; Cummings, Thomas F.

doi:10.1094/pdis-03-14-0271-re

Cited by 20 publications

(14 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After harvest, any of the plant-derived products and residues will be considered as an organic amendment. Plant-based amendments noticeably increase potato yield due to a high volume of biomass input and in the meantime diseases can be suppressed at various levels [ 50 , 51 ].…”

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

“…A rotation crop is usually a cash crop, and it takes one complete season to finish the growth cycle. They can be arranged to be grown for one season in a two-year rotation, or over multiple years [ 47 , 51 ]. Usually, longer duration of rotation cycles results in better disease control [ 35 , 47 , 51 , 52 ].…”

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

“…They can be arranged to be grown for one season in a two-year rotation, or over multiple years [ 47 , 51 ]. Usually, longer duration of rotation cycles results in better disease control [ 35 , 47 , 51 , 52 ]. Crop rotation has multiple benefits, as it impacts physical soil properties and reduces soil erosion.…”

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

See 2 more Smart Citations

Irreplaceable Role of Amendment-Based Strategies to Enhance Soil Health and Disease Suppression in Potato Production

Hao

Ashley

2021

Microorganisms

View full text Add to dashboard Cite

Soilborne diseases are a major constraining factor to soil health and plant health in potato production. In the toolbox of crop management, soil amendments have shown benefits to control these diseases and improve soil quality. Most amendments provide nutrients to plants and suppress multiple soilborne pathogens. Soil amendments are naturally derived materials and products and can be classified into fresh or living plants, organic or inorganic matters, and microbial supplements. Fresh plants have unique functions and continuously exude chemicals to interact with soil microbes. Organic and inorganic matter contain high levels of nutrients, including nitrogen and carbon that plants and soil microorganisms need. Soil microorganisms, whether being artificially added or indigenously existing, are a key factor in plant health. Microbial communities can be considered as a biological reactor in an ecosystem, which suppress soilborne pathogens in various mechanisms and turn soil organic matter into absorbable forms for plants, regardless of amendment types. Therefore, soil amendments serve as an energy input, nutrient source, and a driving force of microbial activities. Advanced technologies, such as microbiome analyses, make it possible to analyze soil microbial communities and soil health. As research advances on mechanisms and functions, amendment-based strategies will play an important role in enhancing soil health and disease suppression for better potato production.

show abstract

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

Section: Soil Amendment For Disease Management—from Practice To Promisementioning

confidence: 99%

See 1 more Smart Citation

Irreplaceable Role of Amendment-Based Strategies to Enhance Soil Health and Disease Suppression in Potato Production

Hao

Ashley

2021

Microorganisms

View full text Add to dashboard Cite

show abstract

“…Although reports of V. dahliae on sugar beet are limited, this fungus is known to infect over 200 plant species and cause considerable economic impact (Pegg & Brady 2002). In the Pacific North-west region (Idaho, Oregon and Washington), V. dahliae is one of the primary pathogens of concern in both mint and potato production (Strausbaugh 1993;Dung et al 2013;Johnson & Cummings 2015).…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity, vegetative compatibility and genetic diversity ofVerticillium dahliaeisolates from sugar beet

Strausbaugh

Eujayl

Martin

2016

Canadian Journal of Plant Pathology

View full text Add to dashboard Cite

Verticillium wilt of sugar beet is a disease that has received very little attention, but which has been reported to reduce sugar quality. A survey of sugar beet fields with wilt symptoms was conducted in 2007 (5 roots from each of 40 fields) and 2008 (5 roots from each of 45 fields) in Idaho. Verticillium dahliae was isolated from all root samples. From a collection of 106 V. dahliae sugar beet isolates, all were of the MAT1-2 mating type. The vegetative compatibility grouping (VCG) was evaluated for 93 of these isolates and 95, 3, 1 and 1% were VCG 4A, VCG 2B, VCG 4B and non-compatible, respectively. All the VCG 4A isolates had the same mitochondrial haplotype based on sequencing of cox3 to nad6 and cox1 to rnl loci, while the VCG 2B isolates had two haplotypes. Pathogenicity tests on sugar beet cultivar 'Monohikari' revealed that the VCG 4A isolates produced more foliar symptoms (P < 0.0001) than VCG 1, 1A, 2A, 2B, 3 and 4B isolates, but none of the VCGs consistently reduced root and foliage weight. Since V. dahliae VCG 4A isolates have also been reported as a pathogen of potato in North America, rotating sugar beet fields with potato could be a concern.Keywords: Beta vulgaris, mitochondrial haplotype, soilborne pathogens, Verticillium wilt Résumé: La flétrissure verticillienne de la betterave à sucre est une maladie dont on s'est peu préoccupé, mais qui est reconnue pour altérer la qualité du sucre. Une étude des champs de betterave à sucre affichant des symptômes de la flétrissure a été menée en Idaho en 2007 (5 racines dans chacun des 40 champs) et en 2008 (5 racines dans chacun des 45 champs). On a obtenu des isolats de Verticillium dahliae de tous les échantillons de racines. À partir d'une collection de 106 isolats de V. dahliae obtenus de la betterave à sucre, il a été possible de conclure que tous appartenaient au type sexuel MAT1-2. Le groupement de compatibilité végétative (GCV) a été évalué pour 93 de ces isolats et 95, 3 et 1 % appartenaient au GCV 4A, au GCV 2B et au GCV 4B, respectivement, et 1 % étaient incompatibles. En se basant sur le séquençage des locus cox3 à nad6 et cox1 à rnl, tous les isolats du GCV 4A avaient le même haplotype mitochondrial, tandis que les isolats du GCV 2B en avaient deux. Des tests de pathogénicité menés sur le cultivar de la betterave à sucre 'Monohikari' ont révélé que les isolats du GCV 4A produisaient plus de symptômes foliaires (P < 0.0001) que les isolats des GCV 1, 1A, 2A, 2B, 3 et 4B, mais qu'aucun ne réduisait substantiellement le poids du feuillage et de la racine. Étant donné qu'on a rapporté que les isolats du GCV 4A s'attaquent également à la pomme de terre en Amérique du Nord, le fait d'alterner, selon un plan de rotation, betterave à sucre et pomme de terre dans un même champ, devrait préoccuper les producteurs.

show abstract

“…The pathogen is also able to colonize, and survive on, many weed species (Raid & Pennypacker, ). Whilst Hide & Read () found no effect of crop rotation (potato grown in 2‐, 4‐ and 6‐year rotations with spring barley) on the incidence of black dot, more recent research showed that increasing crop rotation to 5 years or more without potato reduced black dot incidence on progeny tubers (Johnson & Cummings, ). Research to improve skin finish demonstrated the importance of minimizing crop duration in controlling black dot in cultivar Estima (Wiltshire et al ., ), and Brierley et al .…”

Section: Introductionmentioning

confidence: 99%

The effect of post‐harvest storage conditions on the development of black dot (Colletotrichum coccodes) on potato in crops grown for different durations

et al. 2016

View full text Add to dashboard Cite

The effects of post-harvest curing and storage temperature on severity of black dot, caused by Colletotrichum coccodes, were investigated for potato crops grown for different crop durations (days from 50% emergence to harvest) in soils that posed a low, medium and high risk of disease. In field trials over four growing seasons , black dot severity at harvest increased with increasing crop duration, within the range 103-146 days from 50% emergence to harvest (P < 0.05). In field trials over three growing seasons , black dot severity on tubers at harvest increased significantly with increasing soil inoculum in each year, within the range 43-4787 pg C. coccodes DNA/g soil (P < 0.05). Storage trials were conducted to measure the influence of accumulated post-harvest temperature on black dot. In 2005, no difference in black dot severity was observed on tubers stored for 20 weeks at 2.5 and 3.5°C. In 2006 (but not 2007), increasing the duration of curing after harvest from 4 to 14 days increased black dot severity on tubers from 8.9 to 11.2% (P < 0.01) in long duration crops (>131 days after 50% emergence) grown under high (>1000 pg C. coccodes DNA/g soil) soil inoculum. The number of days of curing did not affect disease severity for shorter duration crops grown at high soil inoculum, or on crops grown at medium or low (100-1000 and <100 pg C. coccodes DNA/g soil, respectively) soil inoculum concentrations. Soil inoculum and crop duration together provided a reasonable prediction of black dot severity at harvest and after a 20-week storage period.

show abstract

Effect of Extended Crop Rotations on Incidence of Black Dot, Silver Scurf, and Verticillium Wilt of Potato

Abstract: Johnson, D. A., and Cummings, T. F. 2015. Effect of extended crop rotations on incidence of black dot, silver scurf, and Verticillium wilt of potato. Plant Dis. 99:257-262.

Cited by 20 publications

References 39 publications

Irreplaceable Role of Amendment-Based Strategies to Enhance Soil Health and Disease Suppression in Potato Production

Irreplaceable Role of Amendment-Based Strategies to Enhance Soil Health and Disease Suppression in Potato Production

Pathogenicity, vegetative compatibility and genetic diversity ofVerticillium dahliaeisolates from sugar beet

The effect of post‐harvest storage conditions on the development of black dot (Colletotrichum coccodes) on potato in crops grown for different durations

Contact Info

Product

Resources

About