Is time to flowering in wheat and barley influenced by nitrogen? a critical appraisal of recent published reports
The literature includes a number of reports, relating to both crop and non-crop species, showing conflicting responses of developmental plasticity to nitrogen availability. We reviewed 1130 papers published from 1990 to 2010 drawn from 14 agriculture-themed journals and conducted a critical appraisa...
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| Otros Autores: | , |
| Formato: | Artículo |
| Lenguaje: | Español |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2014hall.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 100 | 1 | |a Hall, Antonio Juan |9 24024 | |
| 245 | 0 | 0 | |a Is time to flowering in wheat and barley influenced by nitrogen? |b a critical appraisal of recent published reports |
| 520 | |a The literature includes a number of reports, relating to both crop and non-crop species, showing conflicting responses of developmental plasticity to nitrogen availability. We reviewed 1130 papers published from 1990 to 2010 drawn from 14 agriculture-themed journals and conducted a critical appraisal of the effects of fertiliser nitrogen on time to heading or anthesis in barley and wheat, species for which there is a good deal of data. Features of the analysis were the use of relative responses [respect to unfertilised controls] of yield and time to flowering to nitrogen as a proxy for crop nitrogen status and developmental differences, respectively, and the standardisation of the start point for calculating time [in both calendar and thermal units] to flowering in autumn-sown winter cultivars to March 1 [N Hemisphere]. The resulting database [180 cases] covered a broad range of unfertilised crop yields [1-8Mgha-1], and times to flowering [47-168 days]. In very few cases [19 out of 118], the relative time to flowering in fertilised crops differed by more than 5 percent from those of unfertilised crops across a range of yield responses to fertiliser nitrogen from negligible to three-fold. Currently available evidence does not provide solid support to a plastic response of time to flowering to nitrogen in these two species. | ||
| 653 | 0 | |a AGRONOMY | |
| 653 | 0 | |a BARLEY | |
| 653 | 0 | |a BIOLOGICAL DEVELOPMENT | |
| 653 | 0 | |a CROP YIELD | |
| 653 | 0 | |a CULTIVAR | |
| 653 | 0 | |a DATABASE | |
| 653 | 0 | |a DEVELOPMENTAL PLASTICITY | |
| 653 | 0 | |a FERTILIZER APPLICATION | |
| 653 | 0 | |a FLOWERING | |
| 653 | 0 | |a HORDEUM VULGARE | |
| 653 | 0 | |a NITROGEN | |
| 653 | 0 | |a NUTRIENT AVAILABILITY | |
| 653 | 0 | |a PHENOTYPIC PLASTICITY | |
| 653 | 0 | |a TRITICUM AESTIVUM | |
| 653 | 0 | |a TRITICUM DURUM | |
| 653 | 0 | |a WHEAT | |
| 653 | 0 | |a YIELD RESPONSE | |
| 700 | 1 | |a Savin, Roxana |9 6313 | |
| 700 | 1 | |a Slafer, Gustavo Ariel |9 9842 | |
| 773 | |t European Journal of Agronomy |g vol.54 (2014), p.40-46 | ||
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| 900 | |a ^tIs time to flowering in wheat and barley influenced by nitrogen?^sA critical appraisal of recent published reports | ||
| 900 | |a ^aHall^bA.J. | ||
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| 900 | |a Hall, A.J. IFEVA, Facultad de Agronomía UBA/CONICET, Av. San Martín 4453, C1417DSE Buenos Aires, Argentina | ||
| 900 | |a Savin, R. Department of Crop and Forest Sciences, AGROTECNIO [Center for Research in Agrotechnology] University of Lleida, Av. Rovira Roure 191, 25198 Lleida, Spain | ||
| 900 | |a Slafer, G.A. Department of Crop and Forest Sciences, AGROTECNIO [Center for Research in Agrotechnology] University of Lleida, Av. Rovira Roure 191, 25198 Lleida, Spain | ||
| 900 | |a Slafer, G.A. ICREA [Catalonian Institute for Research and Advanced Studies], Spain | ||
| 900 | |a ^tEuropean Journal of Agronomy^cEur. J. Agron. | ||
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| 900 | |a 40 | ||
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| 900 | |a Vol. 54 | ||
| 900 | |a 46 | ||
| 900 | |a AGRONOMY | ||
| 900 | |a BARLEY | ||
| 900 | |a BIOLOGICAL DEVELOPMENT | ||
| 900 | |a CROP YIELD | ||
| 900 | |a CULTIVAR | ||
| 900 | |a DATABASE | ||
| 900 | |a DEVELOPMENTAL PLASTICITY | ||
| 900 | |a FERTILIZER APPLICATION | ||
| 900 | |a FLOWERING | ||
| 900 | |a HORDEUM VULGARE | ||
| 900 | |a NITROGEN | ||
| 900 | |a NUTRIENT AVAILABILITY | ||
| 900 | |a PHENOTYPIC PLASTICITY | ||
| 900 | |a TRITICUM AESTIVUM | ||
| 900 | |a TRITICUM DURUM | ||
| 900 | |a WHEAT | ||
| 900 | |a YIELD RESPONSE | ||
| 900 | |a The literature includes a number of reports, relating to both crop and non-crop species, showing conflicting responses of developmental plasticity to nitrogen availability. We reviewed 1130 papers published from 1990 to 2010 drawn from 14 agriculture-themed journals and conducted a critical appraisal of the effects of fertiliser nitrogen on time to heading or anthesis in barley and wheat, species for which there is a good deal of data. Features of the analysis were the use of relative responses [respect to unfertilised controls] of yield and time to flowering to nitrogen as a proxy for crop nitrogen status and developmental differences, respectively, and the standardisation of the start point for calculating time [in both calendar and thermal units] to flowering in autumn-sown winter cultivars to March 1 [N Hemisphere]. The resulting database [180 cases] covered a broad range of unfertilised crop yields [1-8Mgha-1], and times to flowering [47-168 days]. In very few cases [19 out of 118], the relative time to flowering in fertilised crops differed by more than 5 percent from those of unfertilised crops across a range of yield responses to fertiliser nitrogen from negligible to three-fold. Currently available evidence does not provide solid support to a plastic response of time to flowering to nitrogen in these two species. | ||
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