A framework for the interpretation of temperature effects on dormancy and germination in seed populations showing dormancy

Temperature is a key factor affecting both dormancy and germination. In non-dormant seeds, when temperature is within the thermal range permissive for germination, it just regulates germination velocity, while in seeds presenting dormancy it can also be affecting dormancy level, dormancy termination...

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Detalles Bibliográficos
Autor principal: Batlla, Diego
Otros Autores: Benech Arnold, Roberto Luis
Formato: Artículo
Lenguaje:Español
Materias:
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2015batlla.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
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100 1 |9 11303  |a Batlla, Diego  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.   |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura. Buenos Aires, Argentina. 
245 0 0 |a A framework for the interpretation of temperature effects on dormancy and germination in seed populations showing dormancy 
520 |a Temperature is a key factor affecting both dormancy and germination. In non-dormant seeds, when temperature is within the thermal range permissive for germination, it just regulates germination velocity, while in seeds presenting dormancy it can also be affecting dormancy level, dormancy termination and the expression of dormancy itself. This dual effect of temperature on dormancy and germination often leads to misinterpretation of obtained germination results and confounds the analysis of temperature effects in seed populations presenting some degree of dormancy. In the present paper we discuss the effect of temperature in the regulation of dormancy level and its implications in dormancy expression, as an attempt to construct a conceptual framework that allows distinguishing between the effects of temperature on dormancy and germination. Finally, we present examples of how a better understanding of these effects could help us to interpret the mixed effects of temperature on both processes during incubation of seeds presenting dormancy. 
650 |2 Agrovoc  |9 26 
653 0 |a TEMPERATURE 
653 0 |a GERMINATION 
653 0 |a FLUCTUATING TEMPERATURES 
653 0 |a DORMANCY TERMINATION 
653 0 |a DORMANCY INDUCTION 
653 0 |a DORMANCY EXPRESSION 
653 0 |a BASE TEMPERATURE 
700 1 |a Benech Arnold, Roberto Luis  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.   |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales. Buenos Aires, Argentina.  |9 663 
773 |t Seed Science Research  |g vol.25, no.2 (2015), p.147-158 
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