Influence of Planting Date and Cultivar on Soybean Sudden Death Syndrome in Kentucky

Hershman, D. E.; Hendrix, James W.; Stuckey, R. E.; Bachi, Paul; Henson, G. T.

doi:10.1094/pd-74-0761

Cited by 91 publications

(51 citation statements)

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“…A partir dos resultados obtidos, foi estimada a área abaixo da curva de progresso da doença (AACPD) (Hershman et al, 1990) para os tratamentos. Para a análise de variância, foi utilizado o programa SAS (1999).…”

Section: Análise Dos Resultadosunclassified

“…As avaliações foram realizadas aos 15, 18, 21, 24 e 28 dias após a emergência (dae), sendo avaliada a severidade de doença na parte aérea das plantas, por meio de uma escala de notas de 1 a 5 adaptada de Hershman et al (1990) e Huang & Hartman (1998), onde 1 = ausência de sintomas, 2 = leve desenvolvimento de sintomas com clorose (1%-10% de área foliar afetada -afa), 3 = desenvolvimento moderado de sintomas com clorose internerval e necrose nas bordas foliares (11%-30% de afa e necrose ≤ 10%), 4 = forte desenvolvimento de sintomas com clorose e necrose internerval (31%-70% afa e 11%-30% de necrose) e 5 = desenvolvimento de sintomas severos com clorose e necrose internerval e/ou plantas mortas (>70% afa e necrose >30%).…”

Section: Avaliaçãounclassified

“…vezes não é consistente e sua reação à SMS pode diferir de acordo com o ano e a época de semeadura, que podem afetar o processo de colonização da raiz e a expressão de sintomas (Hershman et al, 1990). Desse modo, a identificação da resistência à SMS no campo é dificultada, devido a natureza quantitativa do caráter e da interação genótipo-ambiente (Njiti et al, 1996(Njiti et al, , 2001.…”

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Métodos de inoculação para quantificação de resistência em soja a Fusarium solani f. sp. glycines, em casa-de-vegetação

2007

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A síndrome da morte súbita (SMS), causada por Fusarium solani f. sp. glycines, tem se mostrado uma das mais importantes doenças da soja, devido aos prejuízos provocados e à dificuldade de controle. Este trabalho teve como objetivo selecionar os métodos de inoculação mais eficientes para a avaliação de resistência genética de genótipos de soja à SMS. Foram realizados dois experimentos em delineamento de blocos casualizados, sendo seis tratamentos e 12 repetições, no primeiro experimento, e seis tratamentos e 16 repetições, no segundo. Cada parcela foi constituída por um vaso contendo uma planta de soja da cultivar FT Estrela, altamente suscetível à SMS e outra planta de "Conquista", moderadamente resistente. As plantas foram avaliadas quanto à incidência e à severidade da SMS a cada três dias e durante 15 dias, com início no 15 dia após a emergência. A partir dos resultados, foi estimada a área abaixo da curva de progresso da doença (AACPD) para os tratamentos. As inoculações com grãos de sorgo e milho colonizados pelo patógeno foram mais eficientes em causar doença, no primeiro experimento, e com grãos de milho, no segundo. Entretanto, nos dois experimentos, apenas a inoculação com grãos de milho foi capaz de separar a reação das cultivares quanto à resistência à SMS, de acordo com o teste de Tukey (P<0,05). Desse modo, a inoculação com grãos de milho pode ser indicada para avaliações da reação de genótipos de soja à SMS, em casa-de-vegetação.

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Section: Análise Dos Resultadosunclassified

Section: Avaliaçãounclassified

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Métodos de inoculação para quantificação de resistência em soja a Fusarium solani f. sp. glycines, em casa-de-vegetação

2007

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“…Though the estimated yield loss of 2. and corresponding average economic loss was $133.3 million (range $8.1-669.2 million) at an average soybean price at $233.24/metric ton (range $152.5-385.1/metric ton). Yield losses due to SDS vary widely depending on planting dates [39,123,135], maturity groups, cultivar selection [123], climatic and environmental trends during the growing season [57], glyphosate spray and many more dynamics as outlined in factors affecting SDS. Also, economic losses vary depending on the market price of soybean in a given year and primary factors affecting the market price according to USDA Economic Research Service include, population and income growth, demand for livestock products, as well as export import policies.…”

Section: Economic Significance Of Sdsmentioning

confidence: 99%

Sudden death syndrome - a growing threat of losses in soybeans.

Navi¹,

Yang²

2016

CABI Reviews

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Sudden death syndrome (SDS) caused by Fusarium virguliforme is one of the major yield-limiting soil borne diseases of soybean (Glycine max). The SDS has been reported from 21 U.S. states and is known to occur in Africa, North America, and South America. In the U.S. the losses due to SDS was estimated at $3.06 billion for a period from 1988 to 2010. Since 1983, several management approaches have been investigated to reduce SDS and yet, continued efforts are necessary to develop long term disease management programs and to sustain disease below economic threshold levels. Integrating available control measures is an option, but adaptability and real-world assessments are equally important. Support of several funding agencies to better understand the disease in identifying suitable control measures to reduce yield losses in commercial cultivations has been indispensable in accomplishing these goals. In spite of sustained efforts, SDS continued to spread within the U.S. and reported in seven other countries since its first report in 1971.Comprehensive reviews have previously been published on this disease by Roy et al. [98], Leandro et al. [58], and Hartman et al. [32]. In this review, updated information on geographic distribution and economic significance of SDS, epidemiology, factors affecting SDS, and management options for SDS including screening techniques have been compiled. Also, discussed significant gaps in use of plant, fungi and bacteria based biocontrol agents in addressing management of SDS.Keywords: Soybean sudden death syndrome, SDS, Fusarium virguliforme, biocontrol, global reports, yield losses due to SDS, epidemiological factors, greenhouse and field screening. ______________________________________________________________________________This is a manuscript of an article from CAB Reviews 11 (2016): 039, doi: 10.1079/PAVSNNR201611039. Navi, S. S.; Yang, X. B. 2016. Sudden death syndrome -a growing threat of losses in soybeans. CAB International, Wallingford, UK. Aoki et al., and F. virguliforme,90] is an economically significant soil-borne disease, and a risk to many soybean production areas worldwide. The disease was first observed by H.J. Walters in Arkansas, United States in 1971[100], but it was only in 1983 that the disease was named as sudden death syndrome (SDS) of unknown etiology [40]. As of this review, the disease has been reported in three continents, North America (Canada and United States), South America (Argentina, Bolivia, Brazil, Paraguay, and Uruguay), and Africa (South Africa), and within the United States 21 states (Fig. 1) Whether the pathogens causing SDS have been introduced in to new regions or if they have been present in the soil in production fields of these countries for some time without being detected is unknown. After the SDS was detected in Iowa [150], Scherm and Yang [114] developed a risk assessment model to determine potential geographic range of development of this disease, which was considered a southern disease by then, in North America. They predi...

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“…An SDS epidemic is highly correlated with soybean planting date and tends to be more severe in earlier planted soybeans [11,12]. Cool soil temperature (22°C to 24°C) increases root infection by F. virguliforme [13,14], conditions that are typical in early planted soybeans.…”

Section: Introductionmentioning

confidence: 99%

Impact of Crop Residue and Corn-soybean Rotation on the Survival of Fusarium virguliforme a Causal Agent of Sudden Death Syndrome of Soybean

Navi¹,

Yang²

2016

J Plant Pathol Microbiol

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Influence of Planting Date and Cultivar on Soybean Sudden Death Syndrome in Kentucky

Cited by 91 publications

References 0 publications

Métodos de inoculação para quantificação de resistência em soja a Fusarium solani f. sp. glycines, em casa-de-vegetação

Métodos de inoculação para quantificação de resistência em soja a Fusarium solani f. sp. glycines, em casa-de-vegetação

Sudden death syndrome - a growing threat of losses in soybeans.

Impact of Crop Residue and Corn-soybean Rotation on the Survival of Fusarium virguliforme a Causal Agent of Sudden Death Syndrome of Soybean

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