Reaction of melon genotypes to the gummy stem blight and the downy mildew

Detalhes bibliográficos
Autor(a) principal: Santos,Gil R dos
Data de Publicação: 2009
Outros Autores: Castro Neto,Manoel D de, Ramos,Leandro N, Café-Filho,Adalberto C, Reis,Ailton, Momenté,Valéria G, Pelúzio,Joenes M, Ignácio,Maíra
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Horticultura Brasileira
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200007
Resumo: The gummy stem blight (Didymella bryoniae) and the downy mildew (Pseudoperonospora cubensis) are two foremost melon (Cucumis melo) diseases, considering their effects on yield and fruit quality. Despite the importance of such diseases, relatively few studies have been done so far on the identification of resistance sources to D. bryoniae and P. cubensis in Brazil. This work aimed at evaluating the resistance of commercial melon genotypes to the gummy stem blight and the downy mildew. Firstly, the most aggressive and representative D. bryoniae isolate was selected. Subsequently, the resistance of 86 melon genotypes to stem infection was studied upon greenhouse conditions by inoculating with the previously selected isolate. Afterwards, the resistance to mildew and leaf infection by D. bryoniae of 28 melon genotypes was evaluated in the field, under natural infection. In the greenhouse, all 86 melon genotypes were infected and showed stem infection symptoms caused by D. bryoniae four days after inoculation. Nevertheless, a significant variation on the resistance levels of the melon genotypes was found. Under field conditions and natural inoculation, genotypes Taslaki and Sary Juliabi were the most susceptible to leaf infection by D. bryoniae, significantly differing from the other genotypes. The lowest levels of susceptibility were identified in genotypes Perlita Busle S1, Valenciano Elíptico, Glaver, MR1, and 2526. All genotypes were susceptible to the downy mildew, albeit differing in susceptibility levels.
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spelling Reaction of melon genotypes to the gummy stem blight and the downy mildewCucumis meloDidymella bryoniaePseudoperonospora cubensisgenetic resistanceThe gummy stem blight (Didymella bryoniae) and the downy mildew (Pseudoperonospora cubensis) are two foremost melon (Cucumis melo) diseases, considering their effects on yield and fruit quality. Despite the importance of such diseases, relatively few studies have been done so far on the identification of resistance sources to D. bryoniae and P. cubensis in Brazil. This work aimed at evaluating the resistance of commercial melon genotypes to the gummy stem blight and the downy mildew. Firstly, the most aggressive and representative D. bryoniae isolate was selected. Subsequently, the resistance of 86 melon genotypes to stem infection was studied upon greenhouse conditions by inoculating with the previously selected isolate. Afterwards, the resistance to mildew and leaf infection by D. bryoniae of 28 melon genotypes was evaluated in the field, under natural infection. In the greenhouse, all 86 melon genotypes were infected and showed stem infection symptoms caused by D. bryoniae four days after inoculation. Nevertheless, a significant variation on the resistance levels of the melon genotypes was found. Under field conditions and natural inoculation, genotypes Taslaki and Sary Juliabi were the most susceptible to leaf infection by D. bryoniae, significantly differing from the other genotypes. The lowest levels of susceptibility were identified in genotypes Perlita Busle S1, Valenciano Elíptico, Glaver, MR1, and 2526. All genotypes were susceptible to the downy mildew, albeit differing in susceptibility levels.Associação Brasileira de Horticultura2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200007Horticultura Brasileira v.27 n.2 2009reponame:Horticultura Brasileirainstname:Associação Brasileira de Horticultura (ABH)instacron:ABH10.1590/S0102-05362009000200007info:eu-repo/semantics/openAccessSantos,Gil R dosCastro Neto,Manoel D deRamos,Leandro NCafé-Filho,Adalberto CReis,AiltonMomenté,Valéria GPelúzio,Joenes MIgnácio,Maíraeng2009-10-09T00:00:00Zoai:scielo:S0102-05362009000200007Revistahttp://cms.horticulturabrasileira.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||hortbras@gmail.com1806-99910102-0536opendoar:2009-10-09T00:00Horticultura Brasileira - Associação Brasileira de Horticultura (ABH)false
dc.title.none.fl_str_mv Reaction of melon genotypes to the gummy stem blight and the downy mildew
title Reaction of melon genotypes to the gummy stem blight and the downy mildew
spellingShingle Reaction of melon genotypes to the gummy stem blight and the downy mildew
Santos,Gil R dos
Cucumis melo
Didymella bryoniae
Pseudoperonospora cubensis
genetic resistance
title_short Reaction of melon genotypes to the gummy stem blight and the downy mildew
title_full Reaction of melon genotypes to the gummy stem blight and the downy mildew
title_fullStr Reaction of melon genotypes to the gummy stem blight and the downy mildew
title_full_unstemmed Reaction of melon genotypes to the gummy stem blight and the downy mildew
title_sort Reaction of melon genotypes to the gummy stem blight and the downy mildew
author Santos,Gil R dos
author_facet Santos,Gil R dos
Castro Neto,Manoel D de
Ramos,Leandro N
Café-Filho,Adalberto C
Reis,Ailton
Momenté,Valéria G
Pelúzio,Joenes M
Ignácio,Maíra
author_role author
author2 Castro Neto,Manoel D de
Ramos,Leandro N
Café-Filho,Adalberto C
Reis,Ailton
Momenté,Valéria G
Pelúzio,Joenes M
Ignácio,Maíra
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,Gil R dos
Castro Neto,Manoel D de
Ramos,Leandro N
Café-Filho,Adalberto C
Reis,Ailton
Momenté,Valéria G
Pelúzio,Joenes M
Ignácio,Maíra
dc.subject.por.fl_str_mv Cucumis melo
Didymella bryoniae
Pseudoperonospora cubensis
genetic resistance
topic Cucumis melo
Didymella bryoniae
Pseudoperonospora cubensis
genetic resistance
description The gummy stem blight (Didymella bryoniae) and the downy mildew (Pseudoperonospora cubensis) are two foremost melon (Cucumis melo) diseases, considering their effects on yield and fruit quality. Despite the importance of such diseases, relatively few studies have been done so far on the identification of resistance sources to D. bryoniae and P. cubensis in Brazil. This work aimed at evaluating the resistance of commercial melon genotypes to the gummy stem blight and the downy mildew. Firstly, the most aggressive and representative D. bryoniae isolate was selected. Subsequently, the resistance of 86 melon genotypes to stem infection was studied upon greenhouse conditions by inoculating with the previously selected isolate. Afterwards, the resistance to mildew and leaf infection by D. bryoniae of 28 melon genotypes was evaluated in the field, under natural infection. In the greenhouse, all 86 melon genotypes were infected and showed stem infection symptoms caused by D. bryoniae four days after inoculation. Nevertheless, a significant variation on the resistance levels of the melon genotypes was found. Under field conditions and natural inoculation, genotypes Taslaki and Sary Juliabi were the most susceptible to leaf infection by D. bryoniae, significantly differing from the other genotypes. The lowest levels of susceptibility were identified in genotypes Perlita Busle S1, Valenciano Elíptico, Glaver, MR1, and 2526. All genotypes were susceptible to the downy mildew, albeit differing in susceptibility levels.
publishDate 2009
dc.date.none.fl_str_mv 2009-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-05362009000200007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Horticultura
publisher.none.fl_str_mv Associação Brasileira de Horticultura
dc.source.none.fl_str_mv Horticultura Brasileira v.27 n.2 2009
reponame:Horticultura Brasileira
instname:Associação Brasileira de Horticultura (ABH)
instacron:ABH
instname_str Associação Brasileira de Horticultura (ABH)
instacron_str ABH
institution ABH
reponame_str Horticultura Brasileira
collection Horticultura Brasileira
repository.name.fl_str_mv Horticultura Brasileira - Associação Brasileira de Horticultura (ABH)
repository.mail.fl_str_mv ||hortbras@gmail.com
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