Reaction of melon genotypes to the gummy stem blight and the downy mildew
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , , |
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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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 |
_version_ |
1754213080006393856 |