Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower
Phoma black stem (BS), caused by Leptosphaeria lindquistii (synonymous Phoma macdonaldii Boerema) is an endemic disease of sunflower in Argentina and occurs worldwide. The expression of some diseases is related to the translocation of photosynthates during grain fill, which in turn is related to the...
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| Format: | Artículo |
| Language: | Inglés |
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Springer Netherlands
2019
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| Online Access: | https://link.springer.com/article/10.1007/s10658-017-1308-4 http://hdl.handle.net/20.500.12123/5346 http://dx.doi.org/10.1007/s10658-017-1308-4 |
| _version_ | 1855483605935980544 |
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| author | Nuñez Bordoy, Evangelina Quiroz, Facundo Jose Dosio, Guillermo |
| author_browse | Dosio, Guillermo Nuñez Bordoy, Evangelina Quiroz, Facundo Jose |
| author_facet | Nuñez Bordoy, Evangelina Quiroz, Facundo Jose Dosio, Guillermo |
| author_sort | Nuñez Bordoy, Evangelina |
| collection | INTA Digital |
| description | Phoma black stem (BS), caused by Leptosphaeria lindquistii (synonymous Phoma macdonaldii Boerema) is an endemic disease of sunflower in Argentina and occurs worldwide. The expression of some diseases is related to the translocation of photosynthates during grain fill, which in turn is related to the source to sink ratio (SSr). The aim of this study was to assess the effect of total soluble carbohydrates (TSC) in the stem, and determine the effect of changes in SSr during the grain filling period on the incidence and severity of BS. A range of SSr and TSC was obtained by artificial shading and performing grain excision treatments, in two sunflower hybrids. A positive relationship was determined between SSr and TSC. Both the incidence and severity index of BS decreased with increasing SSr and TSC. This response was affected by the conditions of the experiment and the leaf position, for both incidence and severity of BS, respectively. Rainy days and leaf position (leaf age) were the main factors affecting the relationship between BS and TSC. Results contribute to understanding the physiological basis of the interaction between L. lindquistii and sunflower, and suggest how breeding for particular traits might result in improved cultivars. The results should also be useful for guiding management of the disease. |
| format | Artículo |
| id | INTA5346 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer Netherlands |
| publisherStr | Springer Netherlands |
| record_format | dspace |
| spelling | INTA53462019-06-21T10:57:49Z Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower Nuñez Bordoy, Evangelina Quiroz, Facundo Jose Dosio, Guillermo Helianthus Annuus Leptosphaería Maculans Phoma Enfermedades de las Plantas Plant Diseases Carbohydrates Carbohidratos Girasol Sunflower Black Stem Phoma black stem (BS), caused by Leptosphaeria lindquistii (synonymous Phoma macdonaldii Boerema) is an endemic disease of sunflower in Argentina and occurs worldwide. The expression of some diseases is related to the translocation of photosynthates during grain fill, which in turn is related to the source to sink ratio (SSr). The aim of this study was to assess the effect of total soluble carbohydrates (TSC) in the stem, and determine the effect of changes in SSr during the grain filling period on the incidence and severity of BS. A range of SSr and TSC was obtained by artificial shading and performing grain excision treatments, in two sunflower hybrids. A positive relationship was determined between SSr and TSC. Both the incidence and severity index of BS decreased with increasing SSr and TSC. This response was affected by the conditions of the experiment and the leaf position, for both incidence and severity of BS, respectively. Rainy days and leaf position (leaf age) were the main factors affecting the relationship between BS and TSC. Results contribute to understanding the physiological basis of the interaction between L. lindquistii and sunflower, and suggest how breeding for particular traits might result in improved cultivars. The results should also be useful for guiding management of the disease. EEA Balcarce Fil: Nuñez Bordoy, Iris Evangelina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Dosio, Guillermo Aníbal Adrián. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina 2019-06-21T10:39:02Z 2019-06-21T10:39:02Z 2018-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s10658-017-1308-4 http://hdl.handle.net/20.500.12123/5346 0929-1873 1573-8469 (Online) http://dx.doi.org/10.1007/s10658-017-1308-4 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Netherlands European journal of plant pathology 150 (3) : 623-637. (March 2018) |
| spellingShingle | Helianthus Annuus Leptosphaería Maculans Phoma Enfermedades de las Plantas Plant Diseases Carbohydrates Carbohidratos Girasol Sunflower Black Stem Nuñez Bordoy, Evangelina Quiroz, Facundo Jose Dosio, Guillermo Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title | Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title_full | Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title_fullStr | Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title_full_unstemmed | Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title_short | Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| title_sort | increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower |
| topic | Helianthus Annuus Leptosphaería Maculans Phoma Enfermedades de las Plantas Plant Diseases Carbohydrates Carbohidratos Girasol Sunflower Black Stem |
| url | https://link.springer.com/article/10.1007/s10658-017-1308-4 http://hdl.handle.net/20.500.12123/5346 http://dx.doi.org/10.1007/s10658-017-1308-4 |
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