Tolerance of domestic [Slovak] winter wheat varieties to septoria glume blotch (Stagonospora nodorum Berk.)
1996
Vanco, B. | Huszar, J. (Vyskumny Ustav Rastlinnej Vyroby, Piestany (Slovakia))
Under field conditions using artificial inoculation, tolerance of 22 winter wheat varieties to septoria glume blotch (Stagonospora nodorum Berk.) was evaluated. Reduction of stem length, grain number in spike, grain weight in spike, and thousand grain weight in inoculated varieties was determined in comparison to a control, non-inoculated group of varieties. From among resistant varieties, cvs. Hana and Regina appeared to be the most tolerant. In medium resistant varieties, grain weight in spike and thousand grain weight was affected the least negatively in cvs. Barbara and Sparta; in susceptible varieties, only in cv. Sofia. Differing reactions of varieties to septoria glume blotch infection in both characters is confirmed also by weaker correlation coefficients between control and inoculated variants (r = 0.27 and 0.50). No clear tendency of reactions to this fungus infection according to earliness and variety height was found. The smallest reduction of grain weight in spike and thousand grain weight was on average found in the late short-stemmed group of varieties
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