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Productividad y calidad nutricional de genotipos de sorgo para doble propósito.

Authors: Gutiérrez-Palacios, Nury; Chow-Wong, Zildghean; Bastianelli, Denis; Bonnal, Laurent; Obando-Solís, Rafael; Trouche, Gilles;

Productividad y calidad nutricional de genotipos de sorgo para doble propósito.

Abstract

El objetivo del presente trabajo fue evaluar genotipos de sorgo para productividad de grano y rastrojo, así como la calidad nutricional para la alimentación del ganado. En los años 2003, 2004 y 2005 se evaluaron 26, 15 y 8 genotipos, respectivamente, con el testigo INTA CNIA en época de postrera (agosto noviembre), en las instalaciones del Centro Nacional de Investigación Agropecuaria (INTA- CNIA), Nicaragua. Se midieron variables agronómicas y se determinó la calidad nutricional de hojas y tallos, usando el método de espectrometría en el infrarrojo cercano. Para todas las variables agronómicas y de calidad nutricional, se encontraron diferencias significativas entre genotipos, a excepción de rendimiento de grano en 2004 y contenido de fibra detergente neutro y ácido en tallos. La heredabilidad de características agronómicas y de los componentes de calidad en hojas fue alta (≥ 0,50), con valores comprendidos entre 0,96 y 0,51 e inferior para la mayoría de los parámetros de calidad en tallos, comprendidos entre 0,47 y 0,20. La única correlación positiva fue entre materia proteica total (MAT) y hoja/rastrojo fresco (H/RF) en los tallos. Los genotipos BF 95-11/195, Sureño, SH 688, V 142 y V 144 sobresalieron en rendimiento de grano, rastrojo y calidad nutricional (hojas-tallos). Sureño superó en materia proteica bruta por hectárea (MPB/ha) al testigo en 50 y 33% en hojas y tallos, respectivamente.

Country
France
Keywords

feuille, http://aims.fao.org/aos/agrovoc/c_28568, fourrage grain, héritabilité, digestibilité, composition chimique, http://aims.fao.org/aos/agrovoc/c_2736, http://aims.fao.org/aos/agrovoc/c_7390, rendement des cultures, ganado, http://aims.fao.org/aos/agrovoc/c_210, variabilidad genética., valeur nutritive, F30 - Génétique et amélioration des plantes, spectroscopie infrarouge, http://aims.fao.org/aos/agrovoc/c_10176, F01 - Culture des plantes, tige, genetic variability, variabilidad genética, http://aims.fao.org/aos/agrovoc/c_3349, http://aims.fao.org/aos/agrovoc/c_3225, Q04 - Composition des produits alimentaires, http://aims.fao.org/aos/agrovoc/c_7244, Sorghum, http://aims.fao.org/aos/agrovoc/c_12213, fourrage vert, S, contrôle continu, Agriculture, variation génétique, livestock, http://aims.fao.org/aos/agrovoc/c_5278, http://aims.fao.org/aos/agrovoc/c_4243, http://aims.fao.org/aos/agrovoc/c_3374, http://aims.fao.org/aos/agrovoc/c_3570, aliment du bétail, digestibilidad, digestibility, http://aims.fao.org/aos/agrovoc/c_5171, génotype, caractère agronomique, http://aims.fao.org/aos/agrovoc/c_2266, http://aims.fao.org/aos/agrovoc/c_1794, http://aims.fao.org/aos/agrovoc/c_15975

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
gold