Abstract
The effect of ethylene (in the form of Ethrel) on the detection of PVYº in cv. Kaszubski potatoes primarily infected in field conditions, was studied. The plants were inoculated with PVYº and sprayed with Ethrel at a concentration of 100 mg/dm<sup>3</sup>, 10 cm<sup>3</sup> of solution were used per plant. The concentration of the active ingredient, CEPA, in this amount of solution was 1 mg/plant. The extinction value and PVYº detection were assessed in the leaf and tuber juices from Ethrel-treated plants and control variant. The ELISA test was used. The results were subjected to statistical analysis and the average deviation at <i>P</i> = 0.05 was calculated. It was shown that Ethrel lowered the value of extinction and decreased PVYº detection in the leaves and tubers of potato plants of the Kaszubski variety primarily infected in field conditions.
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