Septoria/Stagonospora leaf spot diseases on barley in North Dakota, USA
Krupinsky, J.M.
Septoria/Stagonospora leaf spot diseases on barley in North Dakota, USA - Mexico, DF (Mexico) CIMMYT : 1999 - Printed
Diseased barley leaves were collected from fields in North Dakota in 1998. The most common Septoria/Stagonospora diseases were septoria speckled leaf blotch (Septoria passerinii) and stagonospora avenae leaf blotch (Stagonospora avenae f. sp. triticea). Net blotch (Drechslera teres) and spot blotch (Bipolaris sorokiniana) were also commonly present. Stagonospora nodorum blotch (Stagonospora nodorum) and tan spot (Drechslera tritici-repentis), which are major diseases on wheat in the area, were detected on barley but at rather low levels. When isolates of S. nodorum from barley were tested on wheat and barley in greenhouse inoculations, higher symptom severity ratings were obtained on wheat compared to barley, indicating that the isolates obtained from barley were probably wheat-type isolates. Because of the importance of both Septoria passerinii and Stagonospora avenae f. sp. triticea on barley, selecting barley for Septoria/Stagonospora resistance will require screening with both organisms.
English
970-648-035-8
Barley
North dakota
Plant diseases
Septoria
Spots
Stagonospora
USA
CIMMYT
632.4 / GIN
Septoria/Stagonospora leaf spot diseases on barley in North Dakota, USA - Mexico, DF (Mexico) CIMMYT : 1999 - Printed
Diseased barley leaves were collected from fields in North Dakota in 1998. The most common Septoria/Stagonospora diseases were septoria speckled leaf blotch (Septoria passerinii) and stagonospora avenae leaf blotch (Stagonospora avenae f. sp. triticea). Net blotch (Drechslera teres) and spot blotch (Bipolaris sorokiniana) were also commonly present. Stagonospora nodorum blotch (Stagonospora nodorum) and tan spot (Drechslera tritici-repentis), which are major diseases on wheat in the area, were detected on barley but at rather low levels. When isolates of S. nodorum from barley were tested on wheat and barley in greenhouse inoculations, higher symptom severity ratings were obtained on wheat compared to barley, indicating that the isolates obtained from barley were probably wheat-type isolates. Because of the importance of both Septoria passerinii and Stagonospora avenae f. sp. triticea on barley, selecting barley for Septoria/Stagonospora resistance will require screening with both organisms.
English
970-648-035-8
Barley
North dakota
Plant diseases
Septoria
Spots
Stagonospora
USA
CIMMYT
632.4 / GIN