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- Title
Influence of Barley Scald Disease on Yield and Competition in Barley-Oat Mixtures.
- Authors
Karjalainen, R.; Jokinen, K.
- Abstract
Field experiments with mixtures of barley and oats in southern Finland demonstrated a reduction in barley scald disease caused by Rhynchosporium secalis on upper leaves compared with that on pure barley stands. Mixtures lowered disease-induced yield reductions only slightly. In general, barley was not less competitive in the presence of disease than in its absence. Competitive relationships between the species were more important for yield determination than the direct influence of the disease. Over three years the yield increase of the mixtures compared with the means of pure components was close to 5 %, whereas extreme conditions in one year led to a decrease of 11 %. The role of competition for yield determination in barley-oats mixtures under disease conditions is emphasized.
- Subjects
EXPERIMENTAL agriculture; BARLEY leaf scald disease; RHYNCHOSPORIUM secalis; CROP science; BARLEY diseases &; pests
- Publication
Journal of Agronomy & Crop Science, 1993, Vol 171, Issue 5, p314
- ISSN
0931-2250
- Publication type
Article
- DOI
10.1111/j.1439-037X.1993.tb00146.x