dc.creatorWohlfeiler Altavilla, Josefina
dc.creatorAlessandro, Maria Soledad
dc.creatorMorales Sanfurgo, Hugo Andres
dc.creatorCavagnaro, Pablo
dc.creatorGalmarini, Claudio Romulo
dc.date.accessioned2022-04-22T13:26:35Z
dc.date.accessioned2023-03-15T14:14:30Z
dc.date.available2022-04-22T13:26:35Z
dc.date.available2023-03-15T14:14:30Z
dc.date.created2022-04-22T13:26:35Z
dc.date.issued2022-04
dc.identifier2223-7747
dc.identifierhttps://doi.org/10.3390/plants11081075
dc.identifierhttp://hdl.handle.net/20.500.12123/11712
dc.identifierhttps://www.mdpi.com/2223-7747/11/8/1075
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6214668
dc.description.abstractCarrots require a certain number of cold hours to become vernalized and proceed to the reproductive stage, and this phenomenon is genotype-dependent. Annual carrots require less cold than biennials to flower; however, quantitative variation within annuals and biennials also exists, defining a gradient for vernalization requirement (VR). The flowering response of carrots to day length, after vernalization has occurred, is controversial. This vegetable has been described both as a long-day and a neutral-day species. The objective of this study was to evaluate flowering time and frequency in response to different cold treatments and photoperiod regimes in various carrot genotypes. To this end, three annual genotypes from India, Brazil, and Pakistan, and a biennial carrot from Japan, were exposed to 7.5 °C during 30, 60, 90, or 120 days, and then transferred to either long day (LD) or short day (SD) conditions. Significant variation (p < 0.05) among the carrot genotypes and among cold treatments were found, with increased flowering rates and earlier onset of flowering being associated with longer cold exposures. No significant differences in response to photoperiod were found, suggesting that post-vernalization day length does not influence carrot flowering. These findings will likely impact carrot breeding and production of both root and seed, helping in the selection of adequate genotypes and sowing dates to manage cold exposure and day-length for different production purposes.
dc.languageeng
dc.publisherMDPI
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcePlants 11 (8) : 1075. (April 2022)
dc.subjectZanahoria
dc.subjectDaucus carota
dc.subjectVernalización
dc.subjectFloración
dc.subjectFotoperiodismo
dc.subjectCarrots
dc.subjectVernalization
dc.subjectFlowering
dc.subjectPhotoperiodicity
dc.titleVernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.)
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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