Global ETD Search
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Showing 1 to 5 of 5 for “"Leaf spots"”.
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Evaluating Fungicide Timing for Leaf Spot Diseases of Wheat and Fungicide Resistance in Pyrenophora tritici-repentis
… of the most common diseases affecting wheat are leaf spots, caused by several pathogen species that make up the leaf spotting complex, including tan spot of wheat, caused by Pyrenophora tritici-repentis. The optimal timing to apply fungicide to protect wheat against leaf spots is during the flag …
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The effects of foliar applications of seaweed extracts on plant growth and pest resistance
… and potassium, or on populations of potato leafhopper (PLH), Empoasca fabae (Harris). For the fourth cutting, fertilizer and kelp*fertilizer effects were observed. Yield and tissue levels of potassium were higher and PLH numbers were lower in fertilized plots. In fertilized plots, kelp …
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Pflanzenphysiologische Untersuchungen der nichtparasitären Blattverbräunung der Sommergerste "Hordeum vulgare" L.
In der vorliegenden Arbeit wurde die nichtparasitär bedingte Blattverbräunung (NBV) bei der Sommergerste Hordeum vulgare L. untersucht. Ziel der Arbeit war es, herauszufinden, durch welche Faktoren die NBV ausgelöst wird. Ausgangspunkt für die Versuche waren Beobachtungen, die zur allgemeinen …