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- Title
Some effects of barley yellow dwarf virus on spring and winter cereals in glasshouse trials.
- Authors
DOODSON, J. K.; SAUNDERS, P. J. W.
- Abstract
SUMMARY The tolerance of spring and winter varieties of wheat, oats and barley to infection by barley yellow dwarf virus (BYDV) was examined in glasshouse tests. Severely affected plants were stunted and grain yields were considerably decreased because of decreases in both ear number and numbers and sizes of grains. Winter barley varieties were very susceptible and many were killed by BYDV infection. The winter wheat varieties were more widely tolerant than those of oats and barley. Individual seedling symptoms, although correlated with reductions in yield, could not be relied upon for accurate classification of all varieties in order of their susceptibility to infection. Symptoms of seedling infection incorporated into an index of infection permit estimates to be made o eventual decreases in yield by applying the formula DY = 1.4 × (SH+LA+LL)+18. Thus decrease in grain yield (DY) can be related to decreases in height (SH) and leaf length (LL) and increases in leaf area discoloured (LA) in seedling plants infected with BYDV.
- Publication
Annals of Applied Biology, 1970, Vol 65, Issue 2, p317
- ISSN
0003-4746
- Publication type
Article
- DOI
10.1111/j.1744-7348.1970.tb04593.x