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Ethiopia as a Source of Resistance to the Barley Yellow Dwarf Virus in Tetraploid Wheat 1
Author(s) -
Qualset C. O.,
McGuire P. E.,
Vogt H. E.,
Topcu M. A.
Publication year - 1977
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1977.0011183x001700040011x
Subject(s) - barley yellow dwarf , biology , triticum turgidum , hordeum vulgare , agronomy , poaceae , luteovirus , plant disease resistance , resistance (ecology) , virus , plant virus , virology , genetics , gene
Because Ethiopia provided the only source of resistance to the barley yellow dwarf virus (BYDV) disease in barley ( Hordeum vulgare L.), a test for parallel variation was made with Ethiopia tetraploid wheats ( Triticum turgidum L.). High levels of BYDV resistance have not been found in wheat ( T. aestivum L. em Thell. or T. turgidum L.). Ethiopian materials from the USDA world collection were no exception, but 40 entries out of the 584 tested showed tolerance in 4 or 5 years of field tests. Three entries (CI 17610, CI 17621, and CI 17647) had symptom expression comparable to ‘Anza,’ a tolerant common wheat cuitivar, but none was as resistant as certain Ethiopian barleys. Ethiopia is apparently not a center for BYDV resistance in wheat, but further collections are needed.