Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.)
Carrots 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 gradie...
| Main Authors: | , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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MDPI
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11712 https://www.mdpi.com/2223-7747/11/8/1075 https://doi.org/10.3390/plants11081075 |
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| author | Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Morales Sanfurgo, Hugo Andres Cavagnaro, Pablo Galmarini, Claudio Romulo |
| author_browse | Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo Morales Sanfurgo, Hugo Andres Wohlfeiler Altavilla, Josefina |
| author_facet | Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Morales Sanfurgo, Hugo Andres Cavagnaro, Pablo Galmarini, Claudio Romulo |
| author_sort | Wohlfeiler Altavilla, Josefina |
| collection | INTA Digital |
| description | Carrots 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. |
| format | Artículo |
| id | INTA11712 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA117122022-04-22T13:28:31Z Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Morales Sanfurgo, Hugo Andres Cavagnaro, Pablo Galmarini, Claudio Romulo Zanahoria Daucus carota Vernalización Floración Fotoperiodismo Carrots Vernalization Flowering Photoperiodicity Carrots 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. EEA La Consulta Fil: Wohlfeiler, Josefina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Wohlfeiler, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Alessandro, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Morales Sanfurgo, Hugo Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Cavagnaro, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Cavagnaro, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Cavagnaro, Pablo. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina Fil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Galmarini, Claudio Romulo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Galmarini, Claudio Romulo. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina 2022-04-22T13:26:35Z 2022-04-22T13:26:35Z 2022-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11712 https://www.mdpi.com/2223-7747/11/8/1075 2223-7747 https://doi.org/10.3390/plants11081075 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Plants 11 (8) : 1075. (April 2022) |
| spellingShingle | Zanahoria Daucus carota Vernalización Floración Fotoperiodismo Carrots Vernalization Flowering Photoperiodicity Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Morales Sanfurgo, Hugo Andres Cavagnaro, Pablo Galmarini, Claudio Romulo Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title | Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title_full | Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title_fullStr | Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title_full_unstemmed | Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title_short | Vernalization Requirement, but Not Post-Vernalization Day Length, Conditions Flowering in Carrot (Daucus carota L.) |
| title_sort | vernalization requirement but not post vernalization day length conditions flowering in carrot daucus carota l |
| topic | Zanahoria Daucus carota Vernalización Floración Fotoperiodismo Carrots Vernalization Flowering Photoperiodicity |
| url | http://hdl.handle.net/20.500.12123/11712 https://www.mdpi.com/2223-7747/11/8/1075 https://doi.org/10.3390/plants11081075 |
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