Patterns of urediniospores release and development of rose apple rust

Detalhes bibliográficos
Autor(a) principal: Blum, Luiz Eduardo Bassay
Data de Publicação: 2001
Outros Autores: Dianese, José Carmine
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6203
Resumo: This research was conducted to evaluate some epidemiological features of the rose apple (Syzygium jambos) rust (Puccinia psidii Winter) under field conditions at the Universidade de Brasília, Brasília, DF, Brazil, from March 29 through December 31, 1988. Data for the amount of airborne urediniospores were collected in ten plants, using a Burkard's seven-day volumetric spore trap set between two rose apple trees. Most of the airborne urediniospores were collected between June 23 and July 6, from 10 a.m. to 1 p.m. The major quantity of S. jambos affected shoots occurred between April 28 and July 20. There was a positive correlation between the amount of trapped urediniospores and infected young shoots. A negative correlation was shown between temperature (12h) and number of airborne urediniospores. The number of days with relative humidity (RH) ³80% was positively correlated to the amount of deformed shoots. Also, the amount of urediniospores and infected young shoots were positively correlated to the number of days with night (24h) temperature £20oC or night RH³80%. These data show that this disease was favored by low temperatures (£20oC), high night RH (³80%) and high levels of airborne urediniospores.
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spelling Patterns of urediniospores release and development of rose apple rustPadrões de liberação de urediniósporos e desenvolvimento da ferrugem do jambeiroPuccinia psidii; Syzygium jambos; plant diseases; environmental factorsPuccinia psidii; Syzygium jambos; doenças das plantas; fatores ambientaisThis research was conducted to evaluate some epidemiological features of the rose apple (Syzygium jambos) rust (Puccinia psidii Winter) under field conditions at the Universidade de Brasília, Brasília, DF, Brazil, from March 29 through December 31, 1988. Data for the amount of airborne urediniospores were collected in ten plants, using a Burkard's seven-day volumetric spore trap set between two rose apple trees. Most of the airborne urediniospores were collected between June 23 and July 6, from 10 a.m. to 1 p.m. The major quantity of S. jambos affected shoots occurred between April 28 and July 20. There was a positive correlation between the amount of trapped urediniospores and infected young shoots. A negative correlation was shown between temperature (12h) and number of airborne urediniospores. The number of days with relative humidity (RH) ³80% was positively correlated to the amount of deformed shoots. Also, the amount of urediniospores and infected young shoots were positively correlated to the number of days with night (24h) temperature £20oC or night RH³80%. These data show that this disease was favored by low temperatures (£20oC), high night RH (³80%) and high levels of airborne urediniospores.O objetivo deste trabalho foi avaliar padrões epidemiológicos de campo do fungo (Puccinia psidii Winter) que causa a ferrugem em jambeiro (Syzygium jambos). Entre 29/3 e 31/12/1988, levantou-se a incidência da doença e a população aérea de urediniósporos, na Universidade de Brasília, DF. Avaliaram-se dez plantas, sendo que, entre duas delas, instalou-se uma armadilha Burkard caça-esporos de sete dias. A maior quantidade de urediniósporos capturada foi de 23 de junho a 6 de julho. A principal carga de esporos ocorreu de maio a julho, entre as 10h e as 13 horas. Os maiores números de brotos de jambeiro com pústulas esporulantes ocorreram entre 28 de abril e 20 de julho. O número de brotos terminais infectados foi positivamente correlacionado com a quantidade de esporos. A temperatura (às 12h) foi negativamente correlacionada com a quantidade de urediniósporos dispersos no ar. O número de dias com umidade relativa (UR) do ar (às 24h) ³80% foi positivamente correlacionado com a quantidade de brotos deformados. A quantidade de urediniósporos foi positivamente correlacionada com o número de dias com temperatura £20oC e UR(24h) ³80%. Ao maior pico de urediniósporos capturados precedeu um período sem precipitação, porém com vários dias de UR(24h) ³80% e temperatura £20oC. Estes dados mostraram que a doença foi favorecida por temperaturas £20oC e por UR noturna ³80%.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBlum, Luiz Eduardo BassayDianese, José Carmine2001-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6203Pesquisa Agropecuaria Brasileira; v.36, n.6, jun. 2001; 845-850Pesquisa Agropecuária Brasileira; v.36, n.6, jun. 2001; 845-8501678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6203/3268info:eu-repo/semantics/openAccess2010-08-09T13:26:42Zoai:ojs.seer.sct.embrapa.br:article/6203Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-09T13:26:42Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Patterns of urediniospores release and development of rose apple rust
Padrões de liberação de urediniósporos e desenvolvimento da ferrugem do jambeiro
title Patterns of urediniospores release and development of rose apple rust
spellingShingle Patterns of urediniospores release and development of rose apple rust
Blum, Luiz Eduardo Bassay
Puccinia psidii; Syzygium jambos; plant diseases; environmental factors
Puccinia psidii; Syzygium jambos; doenças das plantas; fatores ambientais
title_short Patterns of urediniospores release and development of rose apple rust
title_full Patterns of urediniospores release and development of rose apple rust
title_fullStr Patterns of urediniospores release and development of rose apple rust
title_full_unstemmed Patterns of urediniospores release and development of rose apple rust
title_sort Patterns of urediniospores release and development of rose apple rust
author Blum, Luiz Eduardo Bassay
author_facet Blum, Luiz Eduardo Bassay
Dianese, José Carmine
author_role author
author2 Dianese, José Carmine
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Blum, Luiz Eduardo Bassay
Dianese, José Carmine
dc.subject.por.fl_str_mv Puccinia psidii; Syzygium jambos; plant diseases; environmental factors
Puccinia psidii; Syzygium jambos; doenças das plantas; fatores ambientais
topic Puccinia psidii; Syzygium jambos; plant diseases; environmental factors
Puccinia psidii; Syzygium jambos; doenças das plantas; fatores ambientais
description This research was conducted to evaluate some epidemiological features of the rose apple (Syzygium jambos) rust (Puccinia psidii Winter) under field conditions at the Universidade de Brasília, Brasília, DF, Brazil, from March 29 through December 31, 1988. Data for the amount of airborne urediniospores were collected in ten plants, using a Burkard's seven-day volumetric spore trap set between two rose apple trees. Most of the airborne urediniospores were collected between June 23 and July 6, from 10 a.m. to 1 p.m. The major quantity of S. jambos affected shoots occurred between April 28 and July 20. There was a positive correlation between the amount of trapped urediniospores and infected young shoots. A negative correlation was shown between temperature (12h) and number of airborne urediniospores. The number of days with relative humidity (RH) ³80% was positively correlated to the amount of deformed shoots. Also, the amount of urediniospores and infected young shoots were positively correlated to the number of days with night (24h) temperature £20oC or night RH³80%. These data show that this disease was favored by low temperatures (£20oC), high night RH (³80%) and high levels of airborne urediniospores.
publishDate 2001
dc.date.none.fl_str_mv 2001-06-01
dc.type.none.fl_str_mv
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dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6203
url https://seer.sct.embrapa.br/index.php/pab/article/view/6203
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6203/3268
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.36, n.6, jun. 2001; 845-850
Pesquisa Agropecuária Brasileira; v.36, n.6, jun. 2001; 845-850
1678-3921
0100-104x
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collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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