Reactions of Oat, Barley, and Wheat to Infection with Barley Yellow Dwarf Virus Isolates 1

Crop Science ◽  
1987 ◽  
Vol 27 (2) ◽  
pp. 195-198 ◽  
Author(s):  
D. E. Baltenberger ◽  
H. W. Ohm ◽  
J. E. Foster
Keyword(s):  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Virus Isolates

REACTION OF BARLEY HYBRIDS FROM CROSSES WITH C.I. 5791 TO FOUR ISOLATES OF BARLEY YELLOW DWARF VIRUS

1972 ◽  
Vol 52 (3) ◽  
pp. 305-309 ◽  
Author(s):  
C. C. GILL ◽  
K. W. BUCHANNON
Keyword(s):  
Virus Isolate ◽  
Barley Yellow Dwarf Virus ◽  
Rhopalosiphum Padi ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Leaf Stage ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Virus Isolates ◽  
Specific Tolerance

The Ethiopian barley line C.I. 5791, and six hybrids from crosses between this line and commercial cultivars, were tested in growth cabinets for their reaction to barley yellow dwarf virus (BYDV) isolates 6409 (Macrosiphum avenae-specific) and 6515 (nonspecific). C.I. 5791 was highly tolerant to both isolates. Two hybrids, 62-528 and 65-407-3, were highly tolerant to isolates 6409 and 6515, respectively. Herta, included as a susceptible cultivar, showed the least tolerance to each virus isolate. When these two hybrids were tested against BYDV isolates 6524 (Rhopalosiphum padi-specific) and 6716 (R. maidis-specific), tolerance was higher when plants were inoculated at the four- to five-leaf stage than at the two-leaf stage. Tolerance to isolate 6716, characterized as mild on susceptible oats, was lower than to isolate 6524, which was moderately severe on the oats. Tolerance to the four virus isolates was generally highest for hybrid 62-528.

The identity of barley yellow dwarf virus isolates in cereals and grasses from mainland Australia

1988 ◽  
Vol 39 (3) ◽  
pp. 375 ◽  
Author(s):  
RJ Sward ◽  
RM Lister
Keyword(s):  
Species Differences ◽  
Barley Yellow Dwarf Virus ◽  
Aphid Transmission ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Transmission Studies ◽  
North American Type ◽  
Virus Isolates

Four serologically distinct types of barley yellow dwarf virus (BYDV) were identified infecting cereals and grasses collected around mainland Australia. On the basis of serological relatedness to North American type-isolateq, the Australian isolates were classified as MAV-, PAV-, RMV- and RPV-like. However, aphid transmission studies showed that, while the Australian PAV-, RPV-, and RMV-like isolates had conventional vector relationships, the Australian MAV-like isolates had Rhopaloszphium padi as a major vector species. Differences in the Sitobion species occurring in North America and Australia made comparisons of the transmissibility of MAV- and PAV-like isolates by these vectors impractical. Isolates serologically like PAV were by far the most common viruses in each State surveyed, with the next most common varying from State to State. The identifications of RMV- and MAV-like isolates are the first confirmed records of these types of BYDV in Australia.

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