Seed pathology
Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting, can affect seed viability, germination and contamination b...
| Main Authors: | , |
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| Format: | Book Chapter |
| Language: | Inglés |
| Published: |
International Center for Tropical Agriculture
1980
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/81689 |
| _version_ | 1855513317679824896 |
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| author | Ellis, M.A. Gálvez E., Guillermo E. |
| author_browse | Ellis, M.A. Gálvez E., Guillermo E. |
| author_facet | Ellis, M.A. Gálvez E., Guillermo E. |
| author_sort | Ellis, M.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting, can affect seed viability, germination and contamination by microorganisms. Seed pathogens can be controlled with protectant fungicides that penetrate the seed coat but not the cotyledons. Systemic fungicides, which penetrate that seed coat and cotyledons, provide some degree of control. The date of harvest is very important in the production of high-quality, pathogen-free seed. Leaving plants for prolonged periods in the field after plant maturity increases the percentage of seed infection by fungi and decreases the percentage of seed germination. Various species of bacteria and viruses are seed borne, but no treatment controls them satisfactorily. The seed-borne and seed-contaminating organisms associated with dry beans are given in table form. Color illustrations are given. (AS) |
| format | Book Chapter |
| id | CGSpace81689 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1980 |
| publishDateRange | 1980 |
| publishDateSort | 1980 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace816892025-11-05T16:53:12Z Seed pathology Ellis, M.A. Gálvez E., Guillermo E. phaseolus vulgaris seed transmission storage seed disease control chemical control colletotrichum lindemuthianum xanthomonas campestris phaseoli corynebacterium flaccumfaciens bean common mosaic virus seed production Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting, can affect seed viability, germination and contamination by microorganisms. Seed pathogens can be controlled with protectant fungicides that penetrate the seed coat but not the cotyledons. Systemic fungicides, which penetrate that seed coat and cotyledons, provide some degree of control. The date of harvest is very important in the production of high-quality, pathogen-free seed. Leaving plants for prolonged periods in the field after plant maturity increases the percentage of seed infection by fungi and decreases the percentage of seed germination. Various species of bacteria and viruses are seed borne, but no treatment controls them satisfactorily. The seed-borne and seed-contaminating organisms associated with dry beans are given in table form. Color illustrations are given. (AS) La semilla constituye un metodo eficiente de diseminacion de organismos fitopatogenos entre distintas localidades; mas del 50 por ciento de las principales enfermedades del frijol son transmitidas por semilla. El dano mecanico que ocurre durante la cosecha, trilla y/o siembra tambien puede afectar la viabilidad, germinacion y contaminacion de la semilla por parte de microorganismos. Los patogenos de la semilla se pueden controlar con fungicidas protectores que penetran en la testa de la semilla pero no en el interior de los cotiledones. Los fungicidas sistemicos, que penetran en la testa y en los cotiledones, brindan cierto grado de control. La fecha de cosecha es muy importante en la produccion de semilla de alta calidad, libre de agentes patogenos. El dejar las plantas por periodos prolongados en el campo despues de que estas han madurado, hace que el porcentaje de infeccion por hongos aumente y que el porcentaje de germinacion de la semilla disminuya. Varias especies de bacterias y virus son portadas por la semilla, pero ningun tratamiento las controla satisfactoriamente. En forma de cuadro se presentan los organismos portados por las semillas y contaminantes de ellos asociados con el frijol. Se presentan ilustraciones a color. (RA 1980 2017-06-20T08:51:22Z 2017-06-20T08:51:22Z Book Chapter https://hdl.handle.net/10568/81689 en Open Access application/pdf International Center for Tropical Agriculture Ellis, M.A.;Galvez E., G.E. 1980. Seed pathology . In: Schwartz, Howard F.; Gálvez E., Guillermo E. (eds.). Bean production problems: Disease, insect soil and climatic constraints of Phaseolus vulgaris . Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. p. 301-314 |
| spellingShingle | phaseolus vulgaris seed transmission storage seed disease control chemical control colletotrichum lindemuthianum xanthomonas campestris phaseoli corynebacterium flaccumfaciens bean common mosaic virus seed production Ellis, M.A. Gálvez E., Guillermo E. Seed pathology |
| title | Seed pathology |
| title_full | Seed pathology |
| title_fullStr | Seed pathology |
| title_full_unstemmed | Seed pathology |
| title_short | Seed pathology |
| title_sort | seed pathology |
| topic | phaseolus vulgaris seed transmission storage seed disease control chemical control colletotrichum lindemuthianum xanthomonas campestris phaseoli corynebacterium flaccumfaciens bean common mosaic virus seed production |
| url | https://hdl.handle.net/10568/81689 |
| work_keys_str_mv | AT ellisma seedpathology AT galvezeguillermoe seedpathology |