LOOSE SMUT RESISTANCE IN TWO INTRODUCTIONS OF BARLEY FROM ETHIOPIA

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

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.


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


1998 ◽  
Vol 78 (2) ◽  
pp. 217-222 ◽  
Author(s):  
M. J. Edney ◽  
T. M. Choo ◽  
D. Kong ◽  
T. Ferguson ◽  
K. M. Ho ◽  
...  

Kernel colour is an important marketing trait for both malting and feed barleys. Therefore a study was initiated to investigate the kernel colour of 75 Canadian barley (Hordeum vulgare L.) cultivars at three locations (Charlottetown, Ottawa and Bentley) across Canada in 1991 and 1992. Kernel colour was measured by an Instrumar Colormet Spectrocolorimeter. Kernel colour was found to be brighter at the two locations in eastern Canada (Charlottetown and Ottawa) than at the location in western Canada (Bentley). Two-row cultivars on average were more discoloured than six-row cultivars; eastern two-row were more discoloured than western two-row. Covered barleys were less discoloured than hulless barleys in five of the six environments, but covered barleys at Bentley in 1992 were more discoloured than hulless barleys. Kernel discolouration appeared to be associated with susceptibility to net blotch for six-row cultivars. More studies are needed on kernel discolouration of barley. Key words: Barley, Hordeum vulgare, kernel colour


2018 ◽  
Vol 98 (5) ◽  
pp. 1203-1211 ◽  
Author(s):  
W.G. Legge ◽  
A. Badea ◽  
J.R. Tucker ◽  
T.G. Fetch ◽  
M. Banik ◽  
...  

AAC Goldman is a hulled, two-row, spring, malting barley (Hordeum vulgare L.) cultivar widely adapted to western Canada. It was developed from the cross TR04282/Newdale made in 2002 and was evaluated in the Western Cooperative Two-row Barley Registration Test (2010–2011) as well as the Collaborative Malting Barley Trials (2011–2012) conducted by the malting and brewing industry before being registered in 2018. AAC Goldman has a desirable combination of agronomic, malting quality, and disease resistance traits including low deoxynivalenol content.


2013 ◽  
Vol 93 (2) ◽  
pp. 291-297 ◽  
Author(s):  
W. G. Legge ◽  
J. R. Tucker ◽  
T. G. Fetch ◽  
S. Haber ◽  
J. G. Menzies ◽  
...  

Legge, W. G., Tucker, J. R., Fetch, Jr., T. G., Haber, S., Menzies, J. G., Noll, J. S., Tekauz, A., Turkington, T. K. and Savard, M. E. 2013. Major barley. Can. J. Plant Sci. 93: 291–297. Major is a hulled two-row spring malting barley (Hordeum vulgare L.) cultivar widely adapted to western Canada. Developed from the cross Rivers/Newdale made in 1999, Major was evaluated in the Western Cooperative Two-row Barley Registration Test (2006–2007) and the Collaborative Malting Barley Trials (2007–2008) conducted by the malting and brewing industry before being registered in 2009. Major has an excellent combination of agronomic traits and disease resistance with malting quality similar to AC Metcalfe, a cultivar widely used commercially by the malting and brewing industry in domestic and export markets.


1995 ◽  
Vol 75 (2) ◽  
pp. 371-376 ◽  
Author(s):  
P. Narasimhalu ◽  
D. Kong ◽  
T. M. Choo ◽  
K. M. Ho ◽  
T. Ferguson ◽  
...  

Two-row and six-row barley (Hordeum vulgare L.) cultivars, originating from eastern and western Canada were grown in six environments across Canada. The grain was studied for the effects of environment and cultivar on the total mixed-linkage β-glucan content (TBG, g hg−1 DM). Environment significantly affected TBG content in barley. TBG content differed among the 32 eastern or 43 western Canadian cultivars but the mean TBG for the eastern cultivars was not different from the mean of western cultivars. All eastern cultivars were hulled-feed types, and their TBG ranged from 3.31 in Micmac to 4.09 in Birka for two-row barleys, and from 3.78 in OAC Kippen to 4.41 in Maskot for six-row barleys. Western hulled cultivars which included feed and malt types, contained TBG ranging from 3.37 in Manley to 4.14 in Betzes for two-row barleys, and from 3.71 in Heartland to 4.42 in Tankard for six-row barleys. The two-row hulless cultivar, Condor, contained more TBG (4.69) than the other two hulless cultivars, CDC Richard (3.91) and Scout (3.85). The six-row hulless cultivars, CDC Buck and Tupper, were equal in TBG (4.35). The mean TBG was lower for the two- than six-row barleys (3.7 vs. 4.0), and a broader range for TBG in the two- (3.31–4.55) than six-row barleys (3.71–4.42) suggesed the greater possibility of producing low and high TBG barleys from the two-row cultivars. Canadian cultivars contained between 3.31 and 4.55 g TBG hg−1 DM, and there is a need to develop feed-type barleys containing a third less than the minimum TBG, and food-type barleys containing a third more than the maximum TBG. Key words: Barley, Hordeum vulgare cultivars, β-glucan


1993 ◽  
Vol 73 (4) ◽  
pp. 1087-1089
Author(s):  
Solomon Kibite

AC Lacombe is a six-rowed feed barley (Hordeum vulgare L.) developed at Agriculture Canada, Lacombe Research Station from the cross Klondike/Galt/Unitan. It has plump kernels, high test weight, adequate lodging resistance, and good agronomic characteristics. AC Lacombe is recommended for the Black and Grey Wooded soils of western Canada, where it yields more than other registered cultivars. Key words: Hordeum vulgare, feed barley, cultivar description


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