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handle: 10261/102388
[ES] Se seleccionaron doce poblaciones autóctonas de maíz representativas de la zona húmeda y seca de la Península y de las Islas Canarias buscando diferente latitud y fotoperiodo. Se evaluaron en cinco ambientes en 201 1 y se analizó el valor nutritivo de las mazorcas (grano + zuro) mediante el desarrollo de ecuaciones de predicción por Espectroscopía de Reflectancia en el Infrarrojo Cercano (NIRS), que fueron válidas para la determinación de proteína bruta, almidón y fibra ácido y neutro detergente. Las poblaciones fueron clasificadas en función de su calidad nutritiva. En el ambiente subtropical de Tenerife las poblaciones alcanzaron mayores valores de proteína bruta y almidón, así como menores niveles de concentración de fibra, debido tal vez a una mayor radiación solar que favoreció la completa formación de la mazorca en las variedades tardías.
[EN] Twelve maize landraces were selected as representative of the humid and dry zones of Spain and the Canary lslands seeking different latitude and photoperiod regarding the Iberian Peninsula. They were evaluated in five environments in 201 1 and the nutritive value of the maize ears (grain + cob) was assessed by Near Infrared Reflectance Spectroscopy (NIRS). Valid NIRS prediction equations were developed for the determination of crude protein, starch, acid and neutral detergent fiber in maize ears. Landraces were classified according to the nutritious quality. The subtropical environment of Tenerife provided the greater values of crude protein and starch and the lesser levels of fiber concentration likely due to the intensive solar radiation that mainly favored the complete formation of grain in the late varieties.
Este proyecto fue financiado por el Plan Nacional de l+D+i (INIA RF2OIO- 00004-C04).
8 Pags.- 6 Tabls.
Peer reviewed
neutral detergent fiber, starch, Photoperiod, Fotoperiodo, Acid detergent fiber, Almidón, photoperiod, proteína, Neutral detergent fiber, Crude protein, fibra neutro detergente, fibra ácido detergente, fotoperiodo
neutral detergent fiber, starch, Photoperiod, Fotoperiodo, Acid detergent fiber, Almidón, photoperiod, proteína, Neutral detergent fiber, Crude protein, fibra neutro detergente, fibra ácido detergente, fotoperiodo
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