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Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii
Fruit rot is the principal phytopathological problem of pipiana pumpkin (Cucurbita argyrosperma Huber) in the state of Guerrero. The aims of this research were to 1) identify the causal agent of southern blight on pumpkin fruits by morphological, pathogenic, and molecular analysis (ITS1, 5.8S, ITS2)...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Korean Society of Plant Pathology
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5985643/ https://www.ncbi.nlm.nih.gov/pubmed/29887773 http://dx.doi.org/10.5423/PPJ.OA.08.2017.0185 |
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author | Nájera, José Francisco Díaz Castellanos, Jaime Sahagún Hernández, Mateo Vargas Serna, Sergio Ayvar Gómez, Omar Guadalupe Alvarado Verduzco, Clemente Villanueva Ramos, Marcelo Acosta |
author_facet | Nájera, José Francisco Díaz Castellanos, Jaime Sahagún Hernández, Mateo Vargas Serna, Sergio Ayvar Gómez, Omar Guadalupe Alvarado Verduzco, Clemente Villanueva Ramos, Marcelo Acosta |
author_sort | Nájera, José Francisco Díaz |
collection | PubMed |
description | Fruit rot is the principal phytopathological problem of pipiana pumpkin (Cucurbita argyrosperma Huber) in the state of Guerrero. The aims of this research were to 1) identify the causal agent of southern blight on pumpkin fruits by morphological, pathogenic, and molecular analysis (ITS1, 5.8S, ITS2); 2) evaluate in vitro Trichoderma spp. strains and chemical fungicides; and 3) evaluate under rainfed field conditions, the strains that obtained the best results in vitro, combined with fungicides during two crop cycles. Number of commercial and non-commercial fruits at harvest, and seed yield (kg ha(−1)) were registered. Morphological, pathogenic and molecular characterization identified Sclerotium rolfsii as the causal agent of rot in pipiana pumpkin fruits. Now, in vitro conditions, the highest inhibition of S. rolfsii were obtained by Trichoderma virens strain G-41 (70.72%), T. asperellum strain CSAEGro-1 (69%), and the fungicides metalaxyl (100%), pyraclostrobin (100%), quintozene (100%), cyprodinil + fludioxonil (100%), and prochloraz (100%). Thiophanate-methyl only delayed growth (4.17%). In field conditions, during the spring-summer 2015 cycle, T. asperellum strain CSAEGro-1 + metalaxyl, and T. asperellum + cyprodinil + fludioxonil, favored the highest number of fruits and seed yield in the crop. |
format | Online Article Text |
id | pubmed-5985643 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Korean Society of Plant Pathology |
record_format | MEDLINE/PubMed |
spelling | pubmed-59856432018-06-08 Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii Nájera, José Francisco Díaz Castellanos, Jaime Sahagún Hernández, Mateo Vargas Serna, Sergio Ayvar Gómez, Omar Guadalupe Alvarado Verduzco, Clemente Villanueva Ramos, Marcelo Acosta Plant Pathol J Research Article Fruit rot is the principal phytopathological problem of pipiana pumpkin (Cucurbita argyrosperma Huber) in the state of Guerrero. The aims of this research were to 1) identify the causal agent of southern blight on pumpkin fruits by morphological, pathogenic, and molecular analysis (ITS1, 5.8S, ITS2); 2) evaluate in vitro Trichoderma spp. strains and chemical fungicides; and 3) evaluate under rainfed field conditions, the strains that obtained the best results in vitro, combined with fungicides during two crop cycles. Number of commercial and non-commercial fruits at harvest, and seed yield (kg ha(−1)) were registered. Morphological, pathogenic and molecular characterization identified Sclerotium rolfsii as the causal agent of rot in pipiana pumpkin fruits. Now, in vitro conditions, the highest inhibition of S. rolfsii were obtained by Trichoderma virens strain G-41 (70.72%), T. asperellum strain CSAEGro-1 (69%), and the fungicides metalaxyl (100%), pyraclostrobin (100%), quintozene (100%), cyprodinil + fludioxonil (100%), and prochloraz (100%). Thiophanate-methyl only delayed growth (4.17%). In field conditions, during the spring-summer 2015 cycle, T. asperellum strain CSAEGro-1 + metalaxyl, and T. asperellum + cyprodinil + fludioxonil, favored the highest number of fruits and seed yield in the crop. Korean Society of Plant Pathology 2018-06 2018-06-01 /pmc/articles/PMC5985643/ /pubmed/29887773 http://dx.doi.org/10.5423/PPJ.OA.08.2017.0185 Text en © The Korean Society of Plant Pathology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Nájera, José Francisco Díaz Castellanos, Jaime Sahagún Hernández, Mateo Vargas Serna, Sergio Ayvar Gómez, Omar Guadalupe Alvarado Verduzco, Clemente Villanueva Ramos, Marcelo Acosta Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title | Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title_full | Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title_fullStr | Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title_full_unstemmed | Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title_short | Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii |
title_sort | diagnosis and integrated management of fruit rot in cucurbita argyrosperma, caused by sclerotium rolfsii |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5985643/ https://www.ncbi.nlm.nih.gov/pubmed/29887773 http://dx.doi.org/10.5423/PPJ.OA.08.2017.0185 |
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