Reaction of Turkish barley accessions to Canadian barley pathogens

1996 ◽  
Vol 76 (4) ◽  
pp. 927-931 ◽  
Author(s):  
W. G. Legge ◽  
D. R. Metcalfe ◽  
A. W. Chiko ◽  
J. W. Martens ◽  
A. Tekauz
Keyword(s):  
Genetic Resistance ◽  
Spot Blotch ◽  
Cochliobolus Sativus ◽  
Barley Stripe Mosaic Virus ◽  
Puccinia Graminis ◽  
Pyrenophora Teres ◽  
Net Blotch ◽  
Good Source ◽  
Leaf Blotch ◽  
Disease Reaction

Recent changes in the virulence patterns of Canadian barley pathogens have necessitated the search for new sources of genetic resistance in barley. Evaluation of 176 Turkish barley accessions for disease reaction to barley pathogens prevalent in Canada indicated that this germplasm is a good source of resistance to Septoria passerinii, Rhynchosporium secalis and the spot-form of Pyrenophora teres, but not to Cochliobolus sativus (spot blotch phase), Puccinia graminis tritici, Ustilago nuda or barley stripe mosaic virus. A small number of accessions with resistance to the net-form of P. teres were identified. Key words:Hordeum vulgare, barley, disease resistance, net blotch, scald, speckled leaf blotch

REACTION OF BARLEYS FROM THE MIDDLE-EAST TO CANADIAN PATHOGENS

1977 ◽  
Vol 57 (3) ◽  
pp. 995-999 ◽  
Author(s):  
D. R. METCALFE ◽  
A. W. CHIKO ◽  
J. W. MARTENS ◽  
A. TEKAUZ
Keyword(s):  
Middle East ◽  
Mosaic Virus ◽  
Cochliobolus Sativus ◽  
Barley Stripe Mosaic Virus ◽  
Rhynchosporium Secalis ◽  
Puccinia Graminis ◽  
Pyrenophora Teres ◽  
Good Source ◽  
Disease Reaction ◽  
Puccinia Graminis Tritici

Evaluation of 140 barleys from the Middle-East for disease reaction with Canadian pathogens indicates that this region could be a good source of resistance to Septoria passerinii, Pyrenophora teres and Rhynchosporium secalis but not to Puccinia graminis tritici, Ustilago nuda, Cochliobolus sativus or barley stripe mosaic virus.

REACTION OF ETHIOPIAN BARLEYS TO CANADIAN BARLEY PATHOGENS

1978 ◽  
Vol 58 (3) ◽  
pp. 885-890 ◽  
Author(s):  
D. R. METCALFE ◽  
A. W. CHIKO ◽  
J. W. MARTENS ◽  
A. TEKAUZ
Keyword(s):  
Mosaic Virus ◽  
Small Area ◽  
Cochliobolus Sativus ◽  
Barley Stripe Mosaic Virus ◽  
Puccinia Graminis ◽  
Pyrenophora Teres ◽  
Good Source ◽  
Disease Reaction ◽  
Puccinia Graminis Tritici ◽  
Ustilago Nuda

Evaluation of 226 barleys from Ethiopia for disease reaction to pathogens prevalent in Canada indicated that this region is a good source of resistance to Pyrenophora teres and Septoria passerinii but not to Cochliobolus sativus, Puccinia graminis tritici or barley stripe mosaic virus. Barleys with resistance to Ustilago nuda were confined to a relatively small area within the region.

NEW TYPES OF VIRULENCE IN PYRENOPHORA TERES IN CANADA

1974 ◽  
Vol 54 (4) ◽  
pp. 731-734 ◽  
Author(s):  
A. TEKAUZ ◽  
J. T. MILLS
Keyword(s):  
Hordeum Vulgare ◽  
Spot Blotch ◽  
Cochliobolus Sativus ◽  
Pyrenophora Teres ◽  
Hordeum Vulgare L ◽  
Moderately Resistant ◽  
Hybrid Lines ◽  
Spot Type

Isolates of Pyrenophora teres (Died.) Drechsl. causing either net- or spot-type symptoms on barley (Hordeum vulgare L.) were collected in 1973 from fields near Winnipeg, Manitoba. Spot-type symptoms were similar to those of spot blotch incited by Cochliobolus sativus (Ito and Kurib.) Drechsl. ex Dastur. The cultivars Herta and Fergus, previously reported to be moderately resistant, were susceptible to both types of isolates. These two cultivars presently account for virtually all of the two-rowed barley and about half of the total barley acreage in Manitoba. The resistant hybrid lines CI 5791 and BT 201 retained their resistance to the isolates which produced net-type symptoms but were less resistant to those producing the spot type.

Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley

1995 ◽  
Vol 124 (2) ◽  
pp. 195-204 ◽  
Author(s):  
J. F. Jenkyn ◽  
R. J. Gutteridge ◽  
A. D. Todd
Keyword(s):  
Winter Barley ◽  
Rhynchosporium Secalis ◽  
Pyrenophora Teres ◽  
Net Blotch ◽  
Pseudocercosporella Herpotrichoides ◽  
Leaf Blotch ◽  
Grain Yields ◽  
Consistent Effect ◽  
Barley Net Blotch ◽  
Take All

SUMMARYAn experiment at Rothamsted in 1985–89 and another at Whaddon in 1986 studied the effects of incorporating straw on diseases of winter barley. Net blotch (Pyrenophora teres) and leaf blotch (Rhynchosporium secalis) were initially less severe where straw was burnt or incorporated by ploughing than where cultivations only partially buried it. However, by summer both diseases were usually more severe where straw had been burnt than where it had been incorporated. At Whaddon, eyespot (Pseudocercosporella herpotrichoides) tended to be less severe in tine-cultivated plots where straw was incorporated than where it was burnt, but at Rothamsted, where the straw treatments were confounded with cultivations, there was no consistent effect. The disease was usually more severe where straw was incorporated by ploughing than where it was incorporated using other methods. In contrast, the severity of take-all was generally decreased by ploughing. Seedlings usually grew better where straw had been burnt rather than incorporated and grain yields were often larger. However, yields at Rothamsted in 1987 were unusually, and inexplicably, smaller after burning the straw so that the 5-year mean yields showed no significant differences between treatments.

AAC Vitality barley

2016 ◽  
Vol 96 (3) ◽  
pp. 367-370
Author(s):  
Thin Meiw Choo ◽  
Allen G. Xue ◽  
Richard A. Martin
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Spot Blotch ◽  
Research Centre ◽  
Seed Color ◽  
Net Blotch ◽  
Good Resistance ◽  
Hordeum Vulgare L ◽  
Moderately Resistant

AAC Vitality is a six-row spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada. AAC Vitality had high grain yield, good resistance to lodging, and good resistance to straw break. It was late in heading and maturity. Its seed color was bright. AAC Vitality was moderately resistant to net blotch and spot blotch. AAC Vitality performs well in Ontario.

scholarly journals First Report of Spot Blotch of Barley Caused by Cochliobolus sativus in Morocco

Plant Disease ◽  
2020 ◽  
Vol 104 (3) ◽  
pp. 988-988 ◽  
Author(s):  
S. Rehman ◽  
S. Gyawali ◽  
A. Amri ◽  
R. P. S. Verma
Keyword(s):  
Spot Blotch ◽  
Cochliobolus Sativus ◽  
First Report

The gene conferring susceptibility to spot blotch caused by Cochliobolus sativus is located at the Mla locus in barley cultivar Bowman

2018 ◽  
Vol 131 (7) ◽  
pp. 1531-1539 ◽  
Author(s):  
Yueqiang Leng ◽  
Mingxia Zhao ◽  
Rui Wang ◽  
Brian J. Steffenson ◽  
Robert S. Brueggeman ◽  
...  
Keyword(s):  
Spot Blotch ◽  
Cochliobolus Sativus ◽  
Barley Cultivar ◽  
Mla Locus
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