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Interaction And Frequencies Of Faba Bean Seed-Transmitted Viruses Under
Natural Conditions
M.H. El-Hammady(1) S.E. Albrechtsen(2) A.M.
Abdelmonem(3) F.M Abo El-Abbas(1) M.R.
Rasmi(3) and W.S. Gazalla(1)
(1)Faculty of Agriculture, Ain Shams University, Cairo,
Egypt
(2)Danish Government Institute of Seed Pathology for
Developing Countries (DGISP), Thorvaldsensvej 57, DK-1871, Frederiksberg C,
Copenhagen, Denmark
E-mail: seedpath@kvl.dk
(3) Plant Pathology Research Institute, Agricultural Research Center, Giza, Egyp, E-mail: dimam@link.net
Abstract
Five seed-transmitted viruses, Broad bean mottle (BBMV), Broad bean
true mosaic (BBTMV), Broad bean stain (BBSV), Pea seed-borne
mosaic (PSbMV) and Bean yellow mosaic (BYMV), were detected by ELISA
in faba bean plant samples collected from certain governorates in Egypt. Virus
incidence differed among cultivars and seed sources with highest incidence in
fields in southern regions. When young seedlings and adult plants were tested,
BBMV was always the most prevalent virus. BBSV was not detected singly in young
seedlings but occurred in few mature plants. BBMV and BBTMV were always detected
as mixed infection. BBSV and BYMV were not detected together in young seedling
but were found only in few mature plants. No triple virus infections were
detected in young seedlings but were detected in mature plants
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