The occurrence of Erysiphe trifolii on Lathyrus pratensis in a foothill area of South Bohemia
The aim of small-site experiments carried out in the foothills of the Šumava Mts. was to determine the effect of the etiological agent powdery mildew (Erysiphe trifolii) on meadow peavine (Lathyrus pratensis). Over three consecutive years, we observed a whitish to grey-white soft cover of mycelium on the meadow peavine during the vegetation period. This characteristic symptom of the disease was observed on the plants during summer and autumn. In a plot trial with permanent grassland we evaluated the following management systems: i) mulched, ii) fallow, iii) mown stands, and iv) pasture stands grazed by cattle. We evaluated the total number of Lathyrus pratensis plants as well as the number of the plants attacked by Erysiphe trifolii. The three-year investigation of Lathyrus pratensis yielded statistical evidence that the most significant growth of the fungal disease was recorded in fallow stands (68.9%), while the lowest occurrence of the disease (4.4%) was found in the pasture stands grazed by cattle.
If the inline PDF is not rendering correctly, you can download the PDF file here.
Čača Z Dušek J Římovský K Svítil J (1990): Protection of field and garden crops. SZN Praha (in Czech).
Dixon GR Doodson JK (1971): Assessment keys for some diseases of greens fodder and herbage crops. J Nat Inst Agric Bot 12: 299-307.
Drobná J Jančovič J (2006): Estimation of red clover (Trifolium pratense L.) foragequality parameters depending on the variety cut and growing year. Plant Soil Env 52: 468-475.
Friberg M Wiklund C (2009): Host plant preference and performance of the sibling species of butterflies Leptidea sinapis and Leptidea reali: a test of the trade-off hypothesis for food specialisation. Oecologia 159: 127-137.
Hejcman M Gaisler J (2005): Year round cattle grazing as an alternative management of hay meadows in the Giant Mts. (Krkonose Karkonosze) the Czech Republic. Ekologia-Bratislava 24: 419-429.
Heluta VP (2004): First records of powdery mildew fungi (Erysiphales) from the Lazovskiy reserve (Russian Far East). Mikol Fitopatol 38: 15-19.
Hoffmann M Schmutterer H (1983): Parasitäre Krankheiten und Schädlinge an Land-wirtschaftlichen. J Kulturpfl 7: 381-382.
Jantunen J Saarinen K Marttila O (2001): Effect of forest management on field layer vegetation: A comparison between Finnish and Russian Karelia. Scand J Forest Res 16: 442-449.
Kenicer GJ Kajita T Pennington RT Murata J (2005): Systematics and biogeography of Lathyrus (Leguminosae) based on internal transcribed spacer and cpDNA sequence data. Amer J Bot 92: 1199-1209.
Mitchley J Willems JH (1995): Vertical canopy structure of Dutch chalk grasslands in relation to their management. Vegetatio 117: 17-27.
Mrkvička J Veselá M (1997): Progress of yields and botanical composition of permanent meadow stands in absence of N-fertilisation. Plant Soil Environ 43: 565-570.
Oelmann Y Kreutziger Y Bol R Wicke W (2007): Nitrate leaching in soil: Tracing the NO3- sources with the help of stable N and O isotopes. Soil Biol Biochem 39: 3024-3033.
Stránská M (2004): Successional dynamics of Cynosurus pasture after abandonment in Podkrkonosi. Plant Soil Environ 50: 364-370.