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Abstract
Maize (Zea mays L.) endosperms with high amylose proportion are harder and denser than endosperms with low amylose. Environmental conditions could affect amylose/starch ratio. The purpose of this work was to prove the effect of incident solar radiation, temperature, refertilization with nitrogen (N) and sulfur (S) and source/sink ratio during grain filling on maize amylose/starch ratio. The associations among changes in amylose/starch ratio and other [ver mas...]
dc.contributor.authorMartínez, Roberto D.
dc.contributor.authorCirilo, Alfredo Gabriel
dc.contributor.authorCerrudo, Aníbal Alejandro
dc.contributor.authorAndrade, Fernando Hector
dc.contributor.authorIzquierdo, Natalia Gabriela
dc.date.accessioned2019-06-14T11:39:33Z
dc.date.available2019-06-14T11:39:33Z
dc.date.issued2019-05
dc.identifier.issn0733-5210
dc.identifier.otherhttps://doi.org/10.1016/j.jcs.2019.03.011
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0733521018309226
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5318
dc.description.abstractMaize (Zea mays L.) endosperms with high amylose proportion are harder and denser than endosperms with low amylose. Environmental conditions could affect amylose/starch ratio. The purpose of this work was to prove the effect of incident solar radiation, temperature, refertilization with nitrogen (N) and sulfur (S) and source/sink ratio during grain filling on maize amylose/starch ratio. The associations among changes in amylose/starch ratio and other grain components were also analyzed. We evaluated shading treatments in two periods during grain filling period. Fertilization treatments were evaluated by adding extra N and S per hectare in V15. Heating treatments were evaluated by increasing surface grain temperature during the grain filling period. Source/sink ratio was modified via defoliation and plant thinning. Variations in source/sink ratio or refertilization with N and S did not produce significant changes in starch composition. Increases in minimum temperature during early effective grain filling were related to decreases in starch percentage and to increases in amylose/starch ratio. Thus, future maize starch quality studies need to focus on thermal conditions during grain filling and on the metabolic steps involved. According to these results, management practices that imply a modification in temperature during the grain filling period affect starch composition.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevier
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Cereal Science 87 : 150-156 (May 2019)es_AR
dc.subjectMaízes_AR
dc.subjectMaizeeng
dc.subjectTemperaturaes_AR
dc.subjectTemperatureeng
dc.subjectGranoses_AR
dc.subjectGraineng
dc.subjectDefoliaciónes_AR
dc.subjectDefoliationeng
dc.subjectAlmidón de Maízes_AR
dc.subjectCorn Starcheng
dc.subject.otherRefertilizaciónes_AR
dc.subject.otherLlenado de granoes_AR
dc.titleDiscriminating post-silking environmental effects on starch composition in maize kernelses_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 Pergaminoes_AR
dc.description.filFil: Martínez, Roberto D. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Cirilo, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentinaes_AR
dc.description.filFil: Cerrudo, Anibal Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Andrade, Fernando Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas (CONICET); Argentinaes_AR
dc.description.filFil: Izquierdo, Natalia Gabriela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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