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Abstract
The higher tillering potential of winter wheat cultivars as compared to spring ones has been attributed to an earlier tillering onset in the former. Tillering in grasses is known to depend on temperature and light environment, and may be mediated by plant C status. The aim of this work was to elucidate whether differences in carbohydrate accumulation between wheat types at low temperature may contribute to differences in tillering potential. A set of [ver mas...]
dc.contributor.authorLorenzo, Maximo
dc.contributor.authorAssuero, Silvia Graciela
dc.contributor.authorTognetti, Jorge Alberto
dc.date.accessioned2019-04-04T13:57:52Z
dc.date.available2019-04-04T13:57:52Z
dc.date.issued2015-03
dc.identifier.issn0003-4746
dc.identifier.issn1744-7348
dc.identifier.otherhttps://doi.org/10.1111/aab.12177
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12177
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4816
dc.description.abstractThe higher tillering potential of winter wheat cultivars as compared to spring ones has been attributed to an earlier tillering onset in the former. Tillering in grasses is known to depend on temperature and light environment, and may be mediated by plant C status. The aim of this work was to elucidate whether differences in carbohydrate accumulation between wheat types at low temperature may contribute to differences in tillering potential. A set of experiments with contrasting temperatures was conducted in both field enclosures (high irradiance, three experiments) and growth chambers (low irradiance, two experiments). The relative tiller production rate (RTR) was the highest in winter cultivars grown in cool field enclosures, and the lowest in spring cultivars in growth chambers, either cool or warm. Plant C status was inversely related to temperature the response being more pronounced in winter cultivars. Components of RTR, site filling and phyllochron, responded differently to environment and plant C status. Phyllochron increased with temperature, and was inversely correlated to sugar concentration irrespective of cultivar type. Site filling increased with irradiance in both cultivar types while sugar concentration contributed additively to its promotion solely in winter cultivars. Nevertheless, variation in site filling was larger in percentage than variation in phyllochron (200% and 41%, respectively, between most contrasting treatments). Thus, differences in tillering potential between winter and spring wheats may be attributed not only to the earlier tillering onset in the former but also to their differential response to environment and C status.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceAnnals of Applied Biology 166 (2) : 236-248 (March 2015)es_AR
dc.subjectTemperaturaes_AR
dc.subjectTemperatureeng
dc.subjectTrigoes_AR
dc.subjectWheateng
dc.subjectPrimaveraes_AR
dc.subjectSpringeng
dc.subjectInviernoes_AR
dc.subjectWintereng
dc.subjectMacollamientoes_AR
dc.subjectTilleringeng
dc.subjectCarbonoes_AR
dc.subjectCarboneng
dc.subjectTriticum Aestivumes_AR
dc.subjectFrio
dc.subjectColdeng
dc.subject.otherBaja Temperatura
dc.titleLow temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon statuses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Lorenzo, Maximo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Assuero, Silvia Graciela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentinaes_AR
dc.description.filFil: Tognetti, Jorge Alberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentinaes_AR
dc.subtypecientifico


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