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Revista industrial y agrícola de Tucumán

versión On-line ISSN 1851-3018


SANCHEZ, José R. et al. New soybean cultivar released by the EEAOC: Yanasu RR. Rev. ind. agric. Tucumán [online]. 2012, vol.89, n.1, pp.21-29. ISSN 1851-3018.

In recent decades, soybean planted area, production, and productivity have increased worldwide. This has also occurred in Argentina, especially during the last century, based on the use of high technology, which has turned this crop and its products into the cornerstone of grain and exportation systems. The development of this crop in North Western Argentina has coincided with the process at the national level. Estación Experimental Agroindustrial Obispo Colombres (EEAOC) from Tucumán is constantly producing new technology, partly through the generation of new varieties adapted to this area. Yanasu is a new soybean variety released by the EEAOC, with 123 days to physiological maturity (it belongs to early maturity group VIII) and excellent yield potential. It was obtained by parental crossing and subsequent generation advance at Monte Redondo sub-station, in San Agustín, Tucumán. Comparative yield trials were conducted at four different sites in the soybean area in Tucuman during the 2005/2006 and 2006/2007 seasons. Yanasu presented higher yields than the control in most trials. Among other characteristics, it showed very good resistance to shattering and lodging and a 1000 seed weight of 162.6 grams. As for its sanitary conditions, it exhibited an outstanding tolerance to stem canker disease and frog eye spot, as well as to seed pathogens such as Cercospora kikuchii, Alternaria spp. and Macrophomina spp. Since the 2009/2010 season, Yanasu has been included in the evaluation network of commercial varieties in North Western Argentina, and has proven to have an excellent yield potential, outdoing that of the control at over a dozen sites in the region.

Palabras clave : Soybean; Variety; Maturity group VIII; North Western Argentina; Glyphosate resistance.

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