INBA   12521
INSTITUTO DE INVESTIGACIONES EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Nitrogen use efficiency in cropping for high baking quality wheat.
Autor/es:
BARNEIX, A.J.
Lugar:
Costa do Sauípe, Bahía, Brasil
Reunión:
Workshop; The Fourth International Nitrogen Conference: N-2007. Agriculture, Development, and Nitrogen .A problem of too little or too much”,; 2007
Institución organizadora:
International Nitrogen Initiative
Resumen:
Grain protein concentration is one of the main determinants of wheat baking quality. High levels of grain protein are usually achieved through the addition of big amounts of N fertilizer, demanding high costs and environmental damage. In this presentation the introduction of technologies that may allow the production of high protein wheat with a decrease in N fertilizers input are considered. One alternative is the use of wheat varieties with genetic potential to produce high-protein grains under low nitrogen fertility. Genes that increase grain protein concentration through an increased nitrogen export to the grain have been described lately. These genes can be introduced in breeding programs for wheat varieties adapted to different environments. Another possibility is the use of biofertilizers to increase the efficiency of fertilizers uptake. Several rhizobacteria strains have been shown to consistently increase nitrogen uptake by the wheat crop when inoculated to the rhizosphere, and thus increasing grain protein concentration. Some strains produce an increase in root growth that improves soil exploration, while others increase nitrogen uptake by the root. Both these technologies, genetic improvement and the application of biofertilizers are alternatives that may aid the producer to access to high quality-demanding markets while decreasing environmental degradation.