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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Biological protection and plants induced resistance to diseases and pests: 8th seminar 25. 11. 2010
 Věchet, Lubomír
Conference proceedings on biological plant protection. Contributions were presented on the influence of biological seed dressing for wheat on the composition of soil micromycetes, efficacy of botanical insecticides based on seed oil from Pongania glabra Vent. against Plutella xylostella L. larvae, supressive effect of selected plant species on the germination and foliar necrosis, induced resistence of wheat to powdery mildew.
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Induced resistence of wheat to pokery mildew (Blumeria graminis f. sp. tritici)
 Věchet, L. ; Šerá, Božena ; Vrchotová, Naděžda ; Kolomazník, K.
Inducers of chemical, biological - plant origin and animal origin were used to inducing of wheat resistance to powdery mildew. The best effect had benzothiadiazol (BTH)inducer of chemical origin. From biological inducers ginger and giant knotweed, from animal origin the sample 2 had the best effect. The latest effective on decrease powdery mildew severity had the sample 4 from inducers of biological inducers it was curcuma.
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Suppressive efect of knotweed and other selected plant species on the germination and foliar necrosis
 Šerá, Božena ; Plachká, E. ; Vrchotová, Naděžda
Selected plant species Reynoutria sachalinensis, Carum carvi, Sophora japonica and Impatiens glandulifera was used for testing the toxic effects on the model species of white mustard (Leucosinapis album) and oilseed rape (Brassica napus). Two types of test were used. First, the growth of seeds was tested on the model species in the soil mixed with the various aboveground parts of selected plants. Second, leaves of the model plants were treated with extracts from selected plant species and with the pathogen of Leptosphaeria maculans isolate. The reaction to the impact of selected plant species in the soil substrate was analogue in both of white mustard and oilseed rape. Greater phytotoxicity was recorded for the leaves of Reynoutria sachalinensis and the fruits of Carum carvi. Small phytotoxicity was relatively low when the substrate with the tree bark of Sophora japonica was used.
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