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dc.contributor.author
Nuñez Bordoy, Iris Evangelina
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dc.contributor.author
Quiroz, Facundo José
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dc.contributor.author
Dosio, Guillermo Aníbal Adrián
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dc.date.available
2019-05-16T19:26:28Z
dc.date.issued
2018-03
dc.identifier.citation
Nuñez Bordoy, Iris Evangelina; Quiroz, Facundo José; Dosio, Guillermo Aníbal Adrián; Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower; Springer; European Journal of Plant Pathology; 150; 3; 3-2018; 623-637
dc.identifier.issn
0929-1873
dc.identifier.uri
http://hdl.handle.net/11336/76572
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Black Stem
dc.subject
Carbohydrates
dc.subject
Helianthus Annuus L
dc.subject
Leptosphaeria Lindquistii
dc.subject
Phoma Macdonaldii
dc.subject
Source to Sink Ratio
dc.subject
Sunflower
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-16T20:42:18Z
dc.identifier.eissn
1573-8469
dc.journal.volume
150
dc.journal.number
3
dc.journal.pagination
623-637
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Nuñez Bordoy, Iris Evangelina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina
dc.description.fil
Fil: Dosio, Guillermo Aníbal Adrián. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
European Journal of Plant Pathology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s10658-017-1308-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10658-017-1308-4
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