Effect of nitrogen fixation, nitrogen fertilization and viral infection on yield, tannin and protein contents and in vitro protein digestibility of faba bean

A field investigation of two faba bean cultivars (cv.), Agabat and Silaim, showed that bean yellow mosaic virus (BYMV) infection reduced (p < or = 0.001) yield (Kg/ha), protein content and in vitro protein digestibility (IVPD) but increased (p < or = 0.05) tannin content (mg/100 ml). Nitrogen...

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Bibliographic Details
Published in:Plant foods for human nutrition (Dordrecht) 1995-04, Vol.47 (3), p.257-263
Main Authors: Babiker, E.E. (Faculty of Agriculture, Shambat (Sudan). Dept. of Biochemistry and Soil Science), El Sheikh, E.A.E, Osman, A.J, El Tinay, A.H
Format: Article
Language:English
Subjects:
ABONOS NITROGENADOS
Biological and medical sciences
Cereal and baking product industries
CONTENIDO PROTEICO
DIGESTIBILIDAD
DIGESTIBILITE
DIGESTIBILITY
Digestion
ENGRAIS AZOTE
Fabaceae - metabolism
Fabaceae - virology
Fertilizers
FIJACION DEL NITROGENO
FIXATION DE L'AZOTE
Food industries
Fundamental and applied biological sciences. Psychology
Hydrolyzable Tannins - metabolism
In Vitro Techniques
Nitrogen - administration & dosage
NITROGEN FERTILIZERS
NITROGEN FIXATION
Plant Diseases
Plant Proteins - metabolism
PLANT VIRUSES
Plants, Medicinal
PROTEIN CONTENT
RENDEMENT
RENDIMIENTO
TANINOS
TANNIN
TANNINS
TENEUR EN PROTEINES
VICIA FABA
VIRUS DE LAS PLANTAS
VIRUS DES VEGETAUX
YIELDS
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Summary:A field investigation of two faba bean cultivars (cv.), Agabat and Silaim, showed that bean yellow mosaic virus (BYMV) infection reduced (p < or = 0.001) yield (Kg/ha), protein content and in vitro protein digestibility (IVPD) but increased (p < or = 0.05) tannin content (mg/100 ml). Nitrogen fertilization with viral infection significantly reduced yield and IVPD for cv. Silaim and increased (p < or = 0.05) protein and tannin contents. Nitrogen fertilization alone was found to increase (p < or = 0.05) yield, protein and tannin contents but slightly reduced IVPD. Rhizobium inoculation with viral infection significantly decreased yield per unit area, protein content and IVPD, but increased (p < or = 0.05) tannin content. Rhizobium inoculation alone significantly increased (p < or = 0.001) yield and tannin content and slightly increased protein content but decreased IVPD. The results indicated that nitrogen fertilization or nitrogen fixation increased yield, protein and tannin contents and decreased IVPD. Viral infection had an adverse effect on yield, protein content and IVPD but had no effect on tannin content.
ISSN:0921-9668
1573-9104
DOI:10.1007/BF01088334