scholarly journals Screening of winter barley varieties (Hordeum vulgare) for resistance against loose smut (Ustilago nuda) and covered smut (Ustilago hordei) in Germany

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 20-25
Author(s):  
N. Lorenz ◽  
S. Klause ◽  
K.-J. Müller ◽  
H. Spiess

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1969 ◽  
Vol 49 (4) ◽  
pp. 447-451 ◽  
Author(s):  
J. G. Moseman ◽  
D. R. Metcalfe

The reactions of 18 cultivars and selections of barley, Hordeum vulgare L., to inoculations with three cultures of the loose smut fungus, Ustilago nuda (Jens.) Rostr., were determined. The following conclusions were derived by analyzing the reactions of cultivars Jet (CI 967) and Milton (CI 4966) and derivatives from them to inoculations with cultures 244 of race 2, 49-70 of race 2, and 10 of race 1. Jet was shown to have two genes, Un3 and Un6, and Milton, one gene, Un8. Derivatives from Jet with only gene Un6 were distinguished from those with genes Un3 and Un6. Five host selections known to have a gene or genes at the same locus as Jet were shown to have gene Un6 or a similar gene at that locus.


1974 ◽  
Vol 54 (3) ◽  
pp. 453-456 ◽  
Author(s):  
P. L. THOMAS

Three collections of loose smut, Ustilago nuda (Jens.) Rostr., from Manitoba and and Saskatchewan were virulent on commercial cultivars of barley (Hordeum vulgare L.) derived from Jet (C.I. 967): Bonanza (C.I. 14003), Conquest (C.I. 11638), Keystone (C.I. 10877), and Paragon (C.I. 13649). These cultivars were previously resistant to all races in North America. The virulence pattern of one of the cultures indicates that the genes Un and Un8 confer resistance and that the genes Un and Un3 are separate.


1963 ◽  
Vol 43 (3) ◽  
pp. 390-396 ◽  
Author(s):  
D. R. Metcalfe ◽  
W. H. Johnston

The inheritance of resistance of the barley varieties Br. 5479–754, a derivative of Jet (C.I. 967), PR28, a derivative of C.I. 4966, and Valkie (C.I. 5748) to races 1, 2 and 3 of Ustilago nuda (Jens.) Rostr. was studied. The genes for resistance in all varieties were dominant in effect. Resistance to races 2 and 3 in Br. 5479–754 was due to a single gene and resistance to race 1 to duplicate genes. A single gene in PR28 controlled resistance to all three races. Valkie proved susceptible to race 2 and had single and independent genes for resistance to each of races 1 and 3. The genes for resistance to the various smut races in each variety was independent of those in the other two.The winter barley variety C.I. 4966 is a valuable new source of immunity to U. nuda.


1984 ◽  
Vol 64 (2) ◽  
pp. 255-260 ◽  
Author(s):  
P. L. THOMAS ◽  
D. R. METCALFE

Resistance to loose smut (Ustilago nuda (Jens.) Rostr.) was identified in two introductions of barley (Hordeum vulgare L.) from Ethiopia (CI9973 and CI14099). The gene(s) responsible for the resistance were different from gene Un8 and were equally effective against all strains of loose smut known to be present in western Canada. A synthetic culture of U. nuda containing a combination of virulence factors caused a low level of sporulation on CI14099, but CI9973 remained immune when tested against this strain.Key words: Barley, Hordeum vulgare, loose smut, Ustilago nuda, resistance


1992 ◽  
Vol 72 (2) ◽  
pp. 473-475
Author(s):  
K. M. Ho ◽  
T. M. Choo ◽  
R. A. Martin

AC Burman is a six-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture Canada and is adapted to Eastern Canada. It was selected from a Leger/Bruce/2/2*Leger cross. AC Burman has high yield, good test weight and is moderately resistant to loose smut (Ustilago nuda (Jens.) Rostr.).Key words: Hordeum vulgare L., six-rowed barley, feed barley, high yield


1997 ◽  
Vol 77 (4) ◽  
pp. 639-640 ◽  
Author(s):  
D. E. Falk ◽  
E. Reinbergs ◽  
G. Meatherall

OAC Elmira is a high-yielding, disease-resistant, hardy winter barley adapted to Southern Ontario. OAC Elmira has good winter hardiness and high hectoliter weight. It has better disease resistance than any of the check cultivars and long straw with a lax, nodding head. It was developed by the Ontario Ministry of Agriculture and Food through the Crop Science Department of the University of Guelph. Key words: Hordeum vulgare L., high yield, disease resistance, winter hardiness


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