Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status
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 elucid...
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| Format: | Artículo |
| Language: | Inglés |
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Wiley
2019
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| Online Access: | https://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12177 http://hdl.handle.net/20.500.12123/4816 https://doi.org/10.1111/aab.12177 |
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| author | Lorenzo, Maximo Assuero, Silvia Graciela Tognetti, Jorge Alberto |
| author_browse | Assuero, Silvia Graciela Lorenzo, Maximo Tognetti, Jorge Alberto |
| author_facet | Lorenzo, Maximo Assuero, Silvia Graciela Tognetti, Jorge Alberto |
| author_sort | Lorenzo, Maximo |
| collection | INTA Digital |
| description | 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 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. |
| format | Artículo |
| id | INTA4816 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA48162019-04-04T14:21:31Z Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status Lorenzo, Maximo Assuero, Silvia Graciela Tognetti, Jorge Alberto Temperatura Trigo Primavera Invierno Macollamiento Carbono Triticum Aestivum Temperature Wheat Spring Winter Tillering Carbon Cold Frio Baja Temperatura 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 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. EEA Balcarce Fil: Lorenzo, Maximo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Assuero, Silvia Graciela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina Fil: 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; Argentina 2019-04-04T13:57:52Z 2019-04-04T13:57:52Z 2015-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12177 http://hdl.handle.net/20.500.12123/4816 0003-4746 1744-7348 https://doi.org/10.1111/aab.12177 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Annals of Applied Biology 166 (2) : 236-248 (March 2015) |
| spellingShingle | Temperatura Trigo Primavera Invierno Macollamiento Carbono Triticum Aestivum Temperature Wheat Spring Winter Tillering Carbon Cold Frio Baja Temperatura Lorenzo, Maximo Assuero, Silvia Graciela Tognetti, Jorge Alberto Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title | Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title_full | Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title_fullStr | Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title_full_unstemmed | Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title_short | Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| title_sort | low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status |
| topic | Temperatura Trigo Primavera Invierno Macollamiento Carbono Triticum Aestivum Temperature Wheat Spring Winter Tillering Carbon Cold Frio Baja Temperatura |
| url | https://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12177 http://hdl.handle.net/20.500.12123/4816 https://doi.org/10.1111/aab.12177 |
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