Effect of resistance stimulator application to some agricultural crops
2006
Koziara, W. | Sulewska, H. | Panasiewicz, K.,Akademia Rolnicza, Poznan (Poland). Katedra Uprawy Roli i Roslin
In years 2001-03 the influence of resistance stimulators and N fertilization on the occurrence of spring barley diseases was investigated. The experiment was carried out at Zlotniki Experimental Station (Poland) on a sandy loam soil classified as Albic Luvisols Treatment included resistance stimulators (Bion 50 WG, ComCat, control -untreated), and four levels of nitrogen fertilization (0, 30, 60, 90 kg N/ha). The occurrenced diseases of spring barley was depended on weather conditions and one of them on nitrogen fertilization. Resistance stimulators decreased infection of spring barley by Pyrenophora teres, Rhynchosporium secalis, Blumeria graminis and Puccinia hordei. There was no difference between Bion 50 WG and ComCat effectiveness in diseases reduction. In laboratories and greenhouse experiments effectiveness of harpin (Messenger) application to seeds and plants of corn, cotton and soybean was investigated. Results of these experiments showed positive influence of the protein on germination and growth of the plants. Appearance of the stress seams to be an important agent for stimulator activeness estimation
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