CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis
– The downy mildew, caused by the fungus Pseudoperonospora cubensis is a major foliar disease that attacks the melon crop in the rainy season in northeastern Brazil. The objective of this study was to identify and characterize morphologically resistant melon accessions to P. cubensis. Thirty-six acc...
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Universidade Federal Rural do Semi-Árido
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doaj-a5e00c8453d6412eb3bc834d453cfa682020-11-25T01:27:10ZengUniversidade Federal Rural do Semi-ÁridoRevista Caatinga0100-316X1983-21252015-01-01283100107CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensisLEIDIANE BEZERRA ALBUQUERQUERAFAELA PRISCILA ANTONIOGLAUBER HENRIQUE DE SOUSA NUNESRAVIER VALCÁCER DE MEDEIROSANTONIO JOSÉ RODRIGUES DA SILVA FILHO– The downy mildew, caused by the fungus Pseudoperonospora cubensis is a major foliar disease that attacks the melon crop in the rainy season in northeastern Brazil. The objective of this study was to identify and characterize morphologically resistant melon accessions to P. cubensis. Thirty-six accessions and four commercial cultivars were evaluated in a randomized block design with three replications. The plot was composed of seven plants. The evaluation was conducted in the under field conditions with a diagrammatic scale and calculating the disease percentage index (DPI). Resistance sources and references genotypes were characterized morphologically. The accessions C-RN-2, C-SE-2, C-CE-2, C-PE-2, C-PI-1, and C-BA-2 show resistance to P. cubensis and are promising for use in programs breeding for resistance to downy mildew although its fruits have reduced commercial quality.http://www.redalyc.org/articulo.oa?id=237141066012 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
LEIDIANE BEZERRA ALBUQUERQUE RAFAELA PRISCILA ANTONIO GLAUBER HENRIQUE DE SOUSA NUNES RAVIER VALCÁCER DE MEDEIROS ANTONIO JOSÉ RODRIGUES DA SILVA FILHO |
spellingShingle |
LEIDIANE BEZERRA ALBUQUERQUE RAFAELA PRISCILA ANTONIO GLAUBER HENRIQUE DE SOUSA NUNES RAVIER VALCÁCER DE MEDEIROS ANTONIO JOSÉ RODRIGUES DA SILVA FILHO CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis Revista Caatinga |
author_facet |
LEIDIANE BEZERRA ALBUQUERQUE RAFAELA PRISCILA ANTONIO GLAUBER HENRIQUE DE SOUSA NUNES RAVIER VALCÁCER DE MEDEIROS ANTONIO JOSÉ RODRIGUES DA SILVA FILHO |
author_sort |
LEIDIANE BEZERRA ALBUQUERQUE |
title |
CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis |
title_short |
CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis |
title_full |
CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis |
title_fullStr |
CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis |
title_full_unstemmed |
CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis |
title_sort |
caracterização morfológica de fontes de resistência de meloeiro a pseudoperonospora cubensis |
publisher |
Universidade Federal Rural do Semi-Árido |
series |
Revista Caatinga |
issn |
0100-316X 1983-2125 |
publishDate |
2015-01-01 |
description |
– The downy mildew, caused by the fungus Pseudoperonospora cubensis is a major foliar disease that attacks the melon crop in the rainy season in northeastern Brazil. The objective of this study was to identify and characterize morphologically resistant melon accessions to P. cubensis. Thirty-six accessions and four commercial cultivars were evaluated in a randomized block design with three replications. The plot was composed of seven plants. The evaluation was conducted in the under field conditions with a diagrammatic scale and calculating the disease percentage index (DPI). Resistance sources and references genotypes were characterized morphologically. The accessions C-RN-2, C-SE-2, C-CE-2, C-PE-2, C-PI-1, and C-BA-2 show resistance to P. cubensis and are promising for use in programs breeding for resistance to downy mildew although its fruits have reduced commercial quality. |
url |
http://www.redalyc.org/articulo.oa?id=237141066012 |
work_keys_str_mv |
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