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dc.contributor.author
Malavert Pineda, Cristian Jonatan
dc.contributor.author
Batlla, Diego
dc.contributor.author
Benech-Arnold, Roberto Luis
dc.date.available
2018-07-02T19:02:04Z
dc.date.issued
2017-05
dc.identifier.citation
Malavert Pineda, Cristian Jonatan; Batlla, Diego; Benech-Arnold, Roberto Luis; Temperature-dependent regulation of induction into secondary dormancy of Polygonum aviculare L. seeds: A quantitative analysis; Elsevier Science; Ecological Modelling; 352; 5-2017; 128-138
dc.identifier.issn
0304-3800
dc.identifier.uri
http://hdl.handle.net/11336/50902
dc.description.abstract
In seeds of many summer annuals low temperatures under moist conditions provoke dormancy release while high temperatures induce secondary dormancy. Seed dormancy level establishes the range of temperatures under which germination is possible. The range of temperatures permissive for seed germination is determined by two threshold limit temperatures: Lower limit temperature (Tl) and High limit temperature (Th). Numerous studies have been conducted to characterize the effect of temperature on dormancy release, but there is very few information on how temperature regulates secondary dormancy induction. Seeds of Polygonum aviculare were stratified at 1.6, 5 and 10 °C until achieving a minimum dormancy, and then were induced into secondary dormancy by further storage at 10, 15, 20, 25 and 30 °C. Based on obtained germination time course-curves we quantified changes in the thermal range permissive for seed germination through variations in the mean lower limit temperature for seed germination (Tl(50)) using a mathematical simulation germination model. Our data suggest that induction into secondary dormancy in P. aviculare seeds can be assessed quantitatively through changes in Tl(50).This changes could be described through a Dormancy Induction Thermal-Time Index (DItt), in which thermal time units are accumulated above a threshold temperature from which secondary dormancy is induced (7.9 °C). Additionally, the induction-rate into secondary dormancy was affected by the stratification temperature during dormancy release. We conclude that the effect of temperature on the rate of dormancy induction is not only dependent on prevailing temperature, but also on temperature experienced by seeds during previous dormancy release and the resulting dormancy status of the seed population.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Germination
dc.subject
Polygonum Aviculare
dc.subject
Secondary Dormancy
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Temperature
dc.subject
Thermal Time
dc.subject.classification
Agricultura
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Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Temperature-dependent regulation of induction into secondary dormancy of Polygonum aviculare L. seeds: A quantitative analysis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-19T15:54:32Z
dc.journal.volume
352
dc.journal.pagination
128-138
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Malavert Pineda, Cristian Jonatan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales; Argentina
dc.description.fil
Fil: Batlla, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina
dc.description.fil
Fil: Benech-Arnold, Roberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales; Argentina
dc.journal.title
Ecological Modelling
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ecolmodel.2017.03.008
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304380017302065
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