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PUCCINIA|graminis f. sp. dactylidis":
3 articles found in Index.
URBAN Z., MARKOVÁ J. (1984): Ecology and evolution of Puccinia graminis Pers. Česká Mykologie 38(2): 65-95 (published: 15th May, 1984)
abstract
In the area of the secondary evolutionary gene center of wheat (the Mediterranean) as well as in the regions of the primary gene centers the “graminicolous facies“ of the wheat stem rust, Puccinia graminis subsp. graminis seems to play a significant role. Similarly as in the Mediterranean also in Asia the “ruderal facies“ is combined with that of sexual hybridization on barberry (“montane facies“). Future studies envisage the following: 1) study of the rust ecology in the evolutionary centers, determination of geographic distribution of the individual physiologic races and populations and investigation into the urediospore long distance spread; 2) in search after the gene sources of resistance using of stem rust resistant grass populations indigenous to the evolutionary centers is preferred; 3) to protect natural ecosystems embracing barberry within the evolutionary centers and thus ensure the existence and further development of wild and cultivated grass populations possessing a high degree of nonspecific (general) stem rust resistance or tolerance.
CAGAŠ B. (1984): Unterschiedliche Virulenz der Kronenrostpopulationen (Puccinia coronata Corda var. coronata f. sp. festucae) in der ČSSR. Česká Mykologie 38(1): 31-38 (published: 1984)
abstract
The differences in the virulence of the crown rust populations of Puccinia coronata Corda var. coronata f. sp. festucae in Czechoslovakia were studied by field infestation of selected clones of Festuca pratensis Huds. at 8 sites under various environmental conditions in 1978–1979. The results, complemented by greenhouse tests on the offspring of the clones, confirmed the existence of at least two rust populations with different virulence levels. This underlines the necessity of testing resistant plant varieties at different localities or using mixed populations of the rust in breeding for resistance.
KUBIČKA J. (1975): Mykoflora des Naturschutzgebietes „Vyšenské kopce“ bei Český Krumlov. Česká Mykologie 29(1): 25-34 (published: 1975)
abstract
During 1970–1972, the occurrence of higher fungi was systematically recorded in the “Vyšenské kopce” Nature Reserve near Český Krumlov. The area lies on crystalline limestones at 500–600 m a.s.l. and is largely covered by hazel thickets. A total of 149 species were identified, with 89 species found in hazel stands. Several species are new for southern Bohemia, and for some, hazel is a new substrate in Czechoslovakia.
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