Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm

ABSTRACT The cultivation of melon (Cucumis melo L.) in greenhouses has contributed to the increased incidence of fungal diseases, particularly gummy stem blight caused by Didymella bryoniae (Fuckel) Rehm. This disease is currently considered the main disease affecting this crop, causing conditions s...

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Autores principales:	Santos,Lucas da S., S.-Candido,Willame dos, 0.-Rabelo,Hudson de, Marin,Marcus V., Gaion,Lucas A., Gomes,Rafaelle F., Camargo,Margarete, Braz,Leila T.
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	Acessions Cucumis melo phenotyping gummy stem blight
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100009
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spelling	oai:scielo:S0718-583920170001000092017-11-09Reaction of melon genotypes to Didymella bryoniae (Fuckel) RehmSantos,Lucas da S.S.-Candido,Willame dos0.-Rabelo,Hudson deMarin,Marcus V.Gaion,Lucas A.Gomes,Rafaelle F.Camargo,MargareteBraz,Leila T. Acessions Cucumis melo phenotyping gummy stem blight ABSTRACT The cultivation of melon (Cucumis melo L.) in greenhouses has contributed to the increased incidence of fungal diseases, particularly gummy stem blight caused by Didymella bryoniae (Fuckel) Rehm. This disease is currently considered the main disease affecting this crop, causing conditions such as water soaked seedlings, and stem and fruit cankers, reducing productivity and fruit quality. Considering the importance of this disease, the aim of this study was to evaluate the reaction of different C. melo genotypes to D. bryoniae. Sixty-eight different melon genotypes were investigated. Two phenotyping assays were performed to investigate the resistance to the disease, following a randomized block design with four replicates. Subsequently, a new assay was conducted to validate the resistance of the genotypes selected in the previous step, using a randomized block design with three replicates. The plants were inoculated using the toothpick method, and resistance was evaluated according to a grading scale. Also, reaction classes and assay groups were used for classifying the resistance level of the genotype. The JAB-11 and JAB-20 strains were susceptible to the pathogen, as well as the commercial hybrids Louis F1 and Fantasy Fi. The hits AC-29, C160, Charentais Fom 1, PI 420145, PI 482398 and PI 532830 were resistant to D. bryoniae, and could become an important gene source for the development of resistant cultivars.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.1 20172017-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100009en10.4067/S0718-58392017000100009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Acessions Cucumis melo phenotyping gummy stem blight
spellingShingle	Acessions Cucumis melo phenotyping gummy stem blight Santos,Lucas da S. S.-Candido,Willame dos 0.-Rabelo,Hudson de Marin,Marcus V. Gaion,Lucas A. Gomes,Rafaelle F. Camargo,Margarete Braz,Leila T. Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
description	ABSTRACT The cultivation of melon (Cucumis melo L.) in greenhouses has contributed to the increased incidence of fungal diseases, particularly gummy stem blight caused by Didymella bryoniae (Fuckel) Rehm. This disease is currently considered the main disease affecting this crop, causing conditions such as water soaked seedlings, and stem and fruit cankers, reducing productivity and fruit quality. Considering the importance of this disease, the aim of this study was to evaluate the reaction of different C. melo genotypes to D. bryoniae. Sixty-eight different melon genotypes were investigated. Two phenotyping assays were performed to investigate the resistance to the disease, following a randomized block design with four replicates. Subsequently, a new assay was conducted to validate the resistance of the genotypes selected in the previous step, using a randomized block design with three replicates. The plants were inoculated using the toothpick method, and resistance was evaluated according to a grading scale. Also, reaction classes and assay groups were used for classifying the resistance level of the genotype. The JAB-11 and JAB-20 strains were susceptible to the pathogen, as well as the commercial hybrids Louis F1 and Fantasy Fi. The hits AC-29, C160, Charentais Fom 1, PI 420145, PI 482398 and PI 532830 were resistant to D. bryoniae, and could become an important gene source for the development of resistant cultivars.
author	Santos,Lucas da S. S.-Candido,Willame dos 0.-Rabelo,Hudson de Marin,Marcus V. Gaion,Lucas A. Gomes,Rafaelle F. Camargo,Margarete Braz,Leila T.
author_facet	Santos,Lucas da S. S.-Candido,Willame dos 0.-Rabelo,Hudson de Marin,Marcus V. Gaion,Lucas A. Gomes,Rafaelle F. Camargo,Margarete Braz,Leila T.
author_sort	Santos,Lucas da S.
title	Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
title_short	Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
title_full	Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
title_fullStr	Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
title_full_unstemmed	Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm
title_sort	reaction of melon genotypes to didymella bryoniae (fuckel) rehm
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100009
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Reaction of melon genotypes to Didymella bryoniae (Fuckel) Rehm

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