Abstract

HERNANDEZ-CAMPUZANO, A.V; MARTINEZ-RUEDA, C.G; ESTRADA-CAMPUZANO, G  and  DOMINGUEZ-LOPEZ, A. Efecto de la fertilización nitrogenada y del genotipo sobre el rendimiento y el contenido de nitrógeno y β-glucanos en el grano de la avena (Avena sativa L.). RIA. Rev. investig. agropecu. [online]. 2018, vol.44, n.2, pp.88-95. ISSN 1669-2314.

Oat grain contains relatively high amounts of dietary fiber, particularly β-glucans. This is an advantage since it represents a significant potential in the production of human prebiotic, nutraceutical and functional foods. The aim of this work was to evaluate the effect of genotype and nitrogen (N) applied through the growing, on the concentration of grain β-glucans, nitrogen and yield. For this purpose, seven commercial varieties, Turquesa, Obsidiana, Karma, Avemex (Cevamex), Chihuahua, Paramo y Menonita were sowing in the Universidad Autónoma del Estado de México, located north of Toluca city (19°15’33’’N, 99°39’38’’ W, 2640 msnm) in Mexico, and the fertilization treatments consisted of 60, and 120 kg Nha^-1. β-glucans content and yield and some of its main components were quantified in harvested grain. Results showed that N dose increases the β-glucans content in the Turquesa Paramo and Menonita genotypes and in the other four, the content of this dietary fiber decreases. The grain yield increases with the N dose, although each genotype responds differently to this factor. This parameter is better explained by the number of grains obtained per surface than by the unit grain weight. Grain yield is produced in the tillers and in this part of the architecture of the plants is where the effect of N dose is focused.

Keywords : Nitrogen dose; β-Glucans; Oat; Dietary Fiber.

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