Disease progress of soybean bud blight and spatial pattern of diseased plants.
Fourteen epidemics of soybean bud blight, caused by the tobacco streak virus, were monitored in two soybean cultivars ('IAC-4' and 'FT-10') for two years (1987 and 1988) at Arapoti County, state of Parana, southern Brazil. Disease incidence, based on different sowing dates, were analyzed for statistical fitness in several growth models. Ten epidemics were better described by the monomolecular model, while four epidemics were better described by the Gompertz model. The highest final level of disease incidence was y((f))= 0.6 in 1987 and 0.9 in 1988. There were no significant differences between the cultivars in relation to susceptibility. Early-crops always presented more disease than late-crops. The spatial patterns of diseased plants also changed according to sowing dates as determined by ordinary runs analysis. Diseased plants in early sowings had a random pattern, at first, later becoming clustered (Z below -1.64). In late sowings, diseased plants always had a random pattern.
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Format: | Separatas biblioteca |
Language: | English eng |
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1995-05-16
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Subjects: | Fitopatologia, Distribuicao espacial, Desenvolvimento temporal, Brasil, Soybean, Phytopathology, Disease, Bud blight, Spatial pattern, Temporal development., Epidemiologia, Doença, Queima do Broto, Soja, Vírus., epidemiology., Brazil, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/458775 |
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dig-alice-doc-4587752017-08-16T02:34:11Z Disease progress of soybean bud blight and spatial pattern of diseased plants. ALMEIDA, A. M. R. BERGAMIN FILHO, A. AMORIM, L. EMBRAPA-CNPSo. Londrina, PR. Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil Fourteen epidemics of soybean bud blight, caused by the tobacco streak virus, were monitored in two soybean cultivars ('IAC-4' and 'FT-10') for two years (1987 and 1988) at Arapoti County, state of Parana, southern Brazil. Disease incidence, based on different sowing dates, were analyzed for statistical fitness in several growth models. Ten epidemics were better described by the monomolecular model, while four epidemics were better described by the Gompertz model. The highest final level of disease incidence was y((f))= 0.6 in 1987 and 0.9 in 1988. There were no significant differences between the cultivars in relation to susceptibility. Early-crops always presented more disease than late-crops. The spatial patterns of diseased plants also changed according to sowing dates as determined by ordinary runs analysis. Diseased plants in early sowings had a random pattern, at first, later becoming clustered (Z below -1.64). In late sowings, diseased plants always had a random pattern. 2011-04-10T11:11:11Z 2011-04-10T11:11:11Z 1995-05-16 1994 2015-09-08T11:11:11Z Separatas Journal of Plant Diseases and Protection, v.101, n.4, p.386-392, 1994. http://www.alice.cnptia.embrapa.br/alice/handle/doc/458775 en eng openAccess |
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Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil |
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Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil ALMEIDA, A. M. R. BERGAMIN FILHO, A. AMORIM, L. Disease progress of soybean bud blight and spatial pattern of diseased plants. |
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Fourteen epidemics of soybean bud blight, caused by the tobacco streak virus, were monitored in two soybean cultivars ('IAC-4' and 'FT-10') for two years (1987 and 1988) at Arapoti County, state of Parana, southern Brazil. Disease incidence, based on different sowing dates, were analyzed for statistical fitness in several growth models. Ten epidemics were better described by the monomolecular model, while four epidemics were better described by the Gompertz model. The highest final level of disease incidence was y((f))= 0.6 in 1987 and 0.9 in 1988. There were no significant differences between the cultivars in relation to susceptibility. Early-crops always presented more disease than late-crops. The spatial patterns of diseased plants also changed according to sowing dates as determined by ordinary runs analysis. Diseased plants in early sowings had a random pattern, at first, later becoming clustered (Z below -1.64). In late sowings, diseased plants always had a random pattern. |
author2 |
EMBRAPA-CNPSo. Londrina, PR. |
author_facet |
EMBRAPA-CNPSo. Londrina, PR. ALMEIDA, A. M. R. BERGAMIN FILHO, A. AMORIM, L. |
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Separatas |
topic_facet |
Fitopatologia Distribuicao espacial Desenvolvimento temporal Brasil Soybean Phytopathology Disease Bud blight Spatial pattern Temporal development. Epidemiologia Doença Queima do Broto Soja Vírus. epidemiology. Brazil |
author |
ALMEIDA, A. M. R. BERGAMIN FILHO, A. AMORIM, L. |
author_sort |
ALMEIDA, A. M. R. |
title |
Disease progress of soybean bud blight and spatial pattern of diseased plants. |
title_short |
Disease progress of soybean bud blight and spatial pattern of diseased plants. |
title_full |
Disease progress of soybean bud blight and spatial pattern of diseased plants. |
title_fullStr |
Disease progress of soybean bud blight and spatial pattern of diseased plants. |
title_full_unstemmed |
Disease progress of soybean bud blight and spatial pattern of diseased plants. |
title_sort |
disease progress of soybean bud blight and spatial pattern of diseased plants. |
publishDate |
1995-05-16 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/458775 |
work_keys_str_mv |
AT almeidaamr diseaseprogressofsoybeanbudblightandspatialpatternofdiseasedplants AT bergaminfilhoa diseaseprogressofsoybeanbudblightandspatialpatternofdiseasedplants AT amoriml diseaseprogressofsoybeanbudblightandspatialpatternofdiseasedplants |
_version_ |
1756021340131819520 |