Suppression of Soybean Yield Potential in the Continental United States by Plant Diseases from 2006 to 2009

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

doi:10.1094/php-2010-1122-01-rs

Cited by 300 publications

(186 citation statements)

References 7 publications

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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).…”

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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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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“…In the USA, the disease was first reported on soybean in Illinois, in 1946(Chamberlain, 1951. The disease is mostly reported to cause yield losses in the upper Midwest, and was ranked the second most important disease in the USA in 2009, and the fifth over the period from 2006 to 2009 (Koenning & Wrather, 2010).…”

Section: Introductionmentioning

confidence: 99%

Mycelial compatibility and aggressiveness of Sclerotinia sclerotiorum isolates from Brazil and the United States

Koga

Bowen

Godoy

et al. 2014

Pesq. agropec. bras.

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-The objective of this work was to evaluate the genetic diversity among Sclerotinia sclerotiorum isolates from Brazil and the USA, assess their aggressiveness variability, and verify the existence of an isolate-cultivar interaction. Isolate variability was determined by mycelial compatibility grouping (MCG), and isolate aggressiveness by cut-stem inoculations of soybean cultivars. Two experiments for MCGs and two for aggressiveness were conducted with two sets of isolates. The first set included nine isolates from the same soybean field in Brazil and nine from the Midwest region of the USA. The second set included 16 isolates from several regions of Brazil and one from the USA. In the first set, 18 isolates formed 12 different MCGs. In the second set, 81% of the isolates from Brazil grouped into a single MCG. No common MCGs were observed among isolates from Brazil and the USA. The isolates showed aggressiveness differences in the first set, but not in the second. Although aggressiveness differed in the first set, soybean cultivars and isolates did not interact significantly. Cultivar rank remained the same, regardless of the genetic diversity, aggressiveness difference, and region or country of origin of the isolate. Results from screening of soybean cultivars, performed by the cut-stem method in the USA, can be used as reference for researchers in Brazil.Index terms: Glycine max, Sclerotinia stem rot, disease resistance, screening of cultivars, white mold. Termos para indexação: Glycine max, podridão-de-esclerotinia, resistência a doenças, seleção de cultivares, mofo-branco. Compatibilidade micelial e agressividade de isolados de Sclerotinia sclerotiorum do Brasil e dos Estados Unidos

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“…In the 2016-2017 growing season, both countries each produced more than 100 million tons (Mt) of soybeans (U.S., 117 Mt; Brazil, 114 Mt; USDA 2018). In the U.S., estimated annual losses of soybean due to Sclerotinia stem rot in 28 states ranged between approximately 0.057 to 1.6 Mt from 1996 to 2009 (Koenning and Wrather 2010;Wrather and Koenning 2009). Disease is widespread in the southern, southeast, west-central, and some areas of the northeast region of Brazil (Juliatti et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Variation in pathogen aggression and cultivar performance against Sclerotinia sclerotiorum in soybean and dry bean from Brazil and the U.S.

Miorini

Kamvar

Higgins

et al. 2018

Preprint

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Sclerotinia sclerotiorum (Lib.) de Bary is an important yield-reducing disease in the UnitedStates and Brazil with a diverse host range, including dry bean and soybean. Characterization of both the physiological resistance of commercial cultivars to S. sclerotiorum and the range of aggressiveness among S. sclerotiorum isolates collected from locations where these cultivars are to be deployed, provides important information for making management recommendations. To address this in the present study, we first sought to characterize the range of S. sclerotiorum aggressiveness on soybean and dry bean, using a selection of isolates from Brazil and the U.S.Our second objective was to evaluate the performance of dry bean and soybean cultivars that were developed in Brazil. Eighty-seven isolates of S. sclerotiorum were collected from soybean crops from the U.S. and Brazil and used in this project. U.S. soybean cultivar Dassel and Brazilian dry bean cultivar IAC Alvorada were evaluated using a detached leaf bioassay (DLB) with 65 and 28 isolates respectively. For the straw test, U.S. dry bean cultivar G122 and Brazilian dry bean cultivar IAC Alvorada were inoculated with 32 and 28 isolates respectively.Results showed a significant difference among isolates (P < 0.001). After evaluating 23 Brazilian dry bean cultivars, results of the DLB and straw test showed IAC Diplomata and IPR Tangará were more tolerant to S. sclerotiorum. Among the 11 Brazilian soybean cultivars, M5410 and M6410 were found to be less susceptible to S. sclerotiorum. Collectively, results of this study are important for improving our understanding of variation in pathogen aggressiveness from geographically isolated populations and in identifying cultivars that are likely to have partial resistance.

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Suppression of Soybean Yield Potential in the Continental United States by Plant Diseases from 2006 to 2009

Cited by 300 publications

References 7 publications

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

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

Mycelial compatibility and aggressiveness of Sclerotinia sclerotiorum isolates from Brazil and the United States

Variation in pathogen aggression and cultivar performance against Sclerotinia sclerotiorum in soybean and dry bean from Brazil and the U.S.

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