Abstract
During the years 2002, 2003 and 2004, three trials were conducted in Azul (Buenos Aires Province) on commercial farms, in order to compare thirty varieties of bread wheat. Single effects and combinations of the application of nitrogen (N) and fungicides (F) were analyzed. The treatments were applied between developmental stages Zadocks 50 to 60. The dose of N was of 34 Kg N ha-1 using urea as the source. The fungicides were strobilurine and triazol in the first two years and triazol in the final year. The parameters evaluated were grain yield (GY), test weight (PH), grain protein concentration (GP), grain gluten concentration (GL), dough strength (DS) and farinographic stability (FS). Averaged over years and varieties, the application of N in plots treated with F did not generate significant increases in GY, whereas the quality parameters evaluated tended to increase GP from 0.3 to 0.8%, GL from 0.8 to 3.1% and DS from 6 to 25 10E-4J. The average increase in FS for the N effect was low in all the trials, from -0.4 min to 3.0 min. High variability between years existed in the GY response to F application. In 2002, the response was of + 1068 kg ha-1 , due to a severe attack of leaf rust (Puccinia recondita), whereas in the remaining trials it was low in magnitude: + 203 kg ha-1 in 2003 and + 249 kg ha-1 in 2004. The GY response to F was related to PH increase. The fungicide application caused substantial decreases in the quality parameters of some varieties, especially in year 2002, where, averaged over the varieties, the reductions were -0.4% in GP, -1.2% in GL, -77 10E-4J in DS and –6 min in FS. Nevertheless, within each year, great genotypic variability was observed for FS response to F, corresponding to major reductions in varieties with high FS without the application of F. These alterations in the quality parameters might be caused by the prolongation of the grain filling period due to F application, which would expose the phase of deposition of several protein fractions to periods of high temperature, or to some change in the metabolism of the proteins induced by fungicide action. This hypothesis will be tested in future evaluations
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References
Blumenthal C (1994) The heat-shot response relevant to molecular and structural changes in wheat yield and quality. Aut J Plant Physiol 21:901–909
González Montaner J (1998) Rendimiento y calidad: El equilibrio entre el margen y el mercado. Actas del IV Congreso Nacional de Trigo y II Simposio Nacional de Cereales de siembra Otoño-Invernal. Mar del Plata. Argentina
Nisi J, Bainotti C, Fraschina J, Formica M, Salines J (2004) Avances en el mejoramiento del rendimiento de grano en cultivares de trigo. Actas del VI Congreso Nacional de Trigo y IV Simposio Nacional de Cultivos de Siembra Otoño-Invernal. Bahìa Blanca. Argentina, 29–30
Sarandòn S, Gianibelli M, Chidichimo H (1986) Fertilizaciòn foliar en trigo: Efecto de la dosis y del momento de aplicaciòn sobre el rendimiento y sus componentes, el porcentaje de proteìnas y la calidad del grano. Actas del I Congreso Nacional de Trigo. Pergamino. Argentina, 242–258
Porsborg M, Gonzàlez Montaner G, Di Napoli M (2005) Late Application of nitrogen fertilizers in wheat. 7th International wheat conference. Book of Abstracts, Mar del Plata. Argentina, pp 210
Stone PJ, Nicolas ME (1994) Wheat cultivars vary widely in their responses of grain yield and quality to short periods of post-anthesis heat stress. Aust J Plant Phisiol 21:887–900
Stone PJ, Nicolas ME (1996) Varietal differences in mature protein composition of wheat resulted from different rates of polymer accumulation during grain filling. Aust J Plant Phisiol 23:727–737
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Montaner, J.G., Napoli, M.D. (2007). Genotypic Variability of Commercial Varieties of Bread Wheat for Parameters of Commercial and Industrial Quality. In: Buck, H.T., Nisi, J.E., Salomón, N. (eds) Wheat Production in Stressed Environments. Developments in Plant Breeding, vol 12. Springer, Dordrecht. https://doi.org/10.1007/1-4020-5497-1_63
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DOI: https://doi.org/10.1007/1-4020-5497-1_63
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