Effect of Diseases on Soybean Yields in the United States and Ontario (1999 to 2002)

Wrather, J. A.; Koenning, S. R.; Anderson, Terry

doi:10.1094/php-2003-0325-01-rv

Cited by 117 publications

(81 citation statements)

References 5 publications

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“…Working with southern stem canker, Rupe et al (1999) completed two field trials in which disease progression occurred most rapidly when soybeans were inoculated at growth stage V 6 and slowest at growth stage V 1 . In our experiments, V 1 is slightly younger than seedlings in our study that were inoculated at 2 wk after planting Smith and Backman (1989) found in field studies that the highest disease severity at R6 resulted when soybeans were inoculated For personal use only.…”

contrasting

confidence: 43%

“…With the decline in production of susceptible varieties and implementation of good management practices the incidence of stem canker has decreased. However, from 1999 to 2002 stem canker was considered an important soybean disease in Ontario with estimated yield losses of up to 7000 t in 1999 (Wrather et al 2003). Recently, in Ontario, stem canker was observed on soybean seedlings and plants prior to flowering that were growing through soybean debris from the previous year.…”

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confidence: 99%

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A method for screening soybean seedlings for resistance to northern stem canker caused by Diaporthe phaseolorum var. caulivora

Thickett¹,

VanDerWal²,

Lovett‐Doust³

et al. 2007

Can. J. Plant Sci.

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Thickett, K., VanDerWal, J., Lovett-Doust, L. and Anderson, T. R. 2007. A method for screening soybean seedlings for resistance to northern stem canker caused by Diaporthe phaseolorum var. caulivora. Can J. Plant Sci. 87: 443-446. Five soybean varieties, Williams, Harosoy, AC Hime, Coles and Leo were inoculated 2 and 4 wk after planting with Diaporthe phaseolorum var. caulivora to determine if differences in resistance to stem canker could be detected in the early stages of plant development. Seedling stems were severed above the unifoliolate leaves and inoculum was applied to the cut surface. Stem lesion lengths were measured at 1, 2 and 3 wk following inoculation. The mean lesion length on seedlings inoculated 2 wk after planting (27.2 mm) was significantly less than seedlings inoculated 4 wk after planting (44.5 mm). Based on mean lesion length, Williams was the most susceptible variety followed by Harosoy. AC Hime, Coles and Leo were equally resistant. Stem canker development measured at 2 and 3 wk following inoculation was negatively correlated with stem moisture at the time of inoculation suggesting that stem moisture is important in the development and severity of stem canker. La tige des plantules a été tranchée au-dessus des feuilles à une foliole et l'inoculum appliqué à la surface coupée. Les auteurs ont ensuite mesuré la longueur des lésions 1, 2 et 3 semaines après le traitement. Les plantules inoculées 2 semaines après la plantation présentaient des lésions d'une longueur moyenne (27,2 mm) significativement plus faible que celles des plantules inoculées 4 semaines après la plantation (44,5 mm). Selon la longueur moyenne des lésions, Williams paraît la variété la plus sensible, suivie de Harosoy. AC Hime, Coles et Leo jouissent de la même résistance. Le degré de développement du chancre 2 ou 3 semaines après l'inoculation est négativement corrélé à la teneur en eau de la tige au moment du traitement, signe que ce paramètre revêt une certaine importance dans l'apparition de la maladie et sa gravité.

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confidence: 43%

mentioning

confidence: 99%

A method for screening soybean seedlings for resistance to northern stem canker caused by Diaporthe phaseolorum var. caulivora

Thickett¹,

VanDerWal²,

Lovett‐Doust³

et al. 2007

Can. J. Plant Sci.

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“…Estimated yield losses was 3.3 million tons in 2009 in 28 U.S. states (Wrather and Koenning 2010). RKN often occurs in soybean fields, but to a lesser extent than SCN (Wrather et al 2003) with losses estimated at 1.9 million tons over 28 U.S. states in 2009 (Wrather and Koenning 2010). If RKN interacts with other disease pathogens, damage is greater than would occur with RKN alone (Goswami and Agrawal 1978).…”

Section: Introductionmentioning

confidence: 99%

Reaction of Soybean Cyst Nematode Resistant Plant Introductions to Root-Knot and Reniform Nematodes

Lee¹,

Kim²,

Robbins³

et al. 2015

Plant Breed. Biotech.

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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Out of these accessions, 64 PIs were identified with high or moderate resistance to RKN. Of these 64 lines, 24 accessions showed good resistance to both RKN and RN. These new sources of resistance to multiple nematodes will be valuable materials for soybean breeding programs to develop new resistant cultivars that can overcome yield losses caused by one or more of these nematode species.

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“…Soybean cyst nematode (Heterodera glycines Ichinohe -SCN) is the pathogen that causes more damages to soybean [Glycine max (L.) Merrill] throughout the world (Wrather et al, 2003). The most secure and economical control of SCN is the use of resistant cultivars associated to the rotation of non-host crops (Embrapa, 2006).…”

Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to soybean cyst nematode races 3 and 14 in soybean RIL and F2 populations

Silva

Schuster²,

Cervigni

et al. 2007

Pesq. agropec. bras.

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-The objective of this work was to evaluate the soybean inheritance of resistance to cyst nematode races 3 and 14. The following populations where evaluated: one population of recombinant inbred lines (RILs) [Hartwig (resistant) x Y23 (susceptible line)] for races 3, 14 and 9; one population of families F 2:3 [M-SOY 8001 (resistant) x MB/BR 46 -Conquista (susceptible)] for race 3; and one population of families F 2:3 [(S5995 (resistant) x BRSMG Renascença (susceptible)] for race 14. In RIL populations, four epistatic genes were identified which conditioned resistance to race 14, and three epistatic ones for resistance to races 3 and 9. The lack of one gene provided moderate resistance under all situations. The highest number of genes for resistance to race 14 points out that genes responsible for lower effects might be involved. In population F 2:3 from M-SOY 8001 x MB/BR 46 -Conquista, one recessive gene for moderate resistance and two recessive genes complete resistance to race 3 were identified. Two recessive genes conditioning moderate resistance to race 14 were identified in population F 2:3 from the crossing S5995 x BRSMG Renascença. These results will be useful in designing crossings, involving these parentals, with higher possibility to accumulating genes that provide resistance to several SCN races.

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Effect of Diseases on Soybean Yields in the United States and Ontario (1999 to 2002)

Cited by 117 publications

References 5 publications

A method for screening soybean seedlings for resistance to northern stem canker caused by Diaporthe phaseolorum var. caulivora

A method for screening soybean seedlings for resistance to northern stem canker caused by Diaporthe phaseolorum var. caulivora

Reaction of Soybean Cyst Nematode Resistant Plant Introductions to Root-Knot and Reniform Nematodes

Inheritance of resistance to soybean cyst nematode races 3 and 14 in soybean RIL and F2 populations

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