Michurin Federal Research Center
Author list of organization
List of articles written by the authors of the organization
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DYNAMICS OF CATALASE ACTIVITY IN THE LEAVES OF APPLE TREES UNDER THE INFLUENCE OF FOLIAR FERTILIZING
06.00.00 Agricultural sciences
Description
The research was conducted studying the effect of various system of foliar fertigation on catalase activity in the apple orchard with drip irrigation in 2013-2014. The object of research were apple trees of Zhigulevskoye variety grafted on rootstock 62-396 in experimental intensive apple orchard of I.V. Michurin FSC which had been planted in 2007. During vegetation, the following indices were determined in apple tree leaves in dynamics: catalase activity by gasometrical method of M.I Lishkevich on the 3rd and 5 th day after treatments, the content of nitrogen (Kjeldahl method), phosphorus (KFK-3), potassium and calcium (Jenway PFP-7). Data were statistical processed according to the generally accepted methods described by B.A. Dospekhov. It has been established that foliar fertigation increased catalase activity on the 3 rd day after treatment, which then decreases to normal values. So, treatments acted as a stress factor. Correlation of catalase activity with nitrogen content in the leaves increased, and with calcium content decreased as the number of megafol mixed with calcium calbit treatments was enlarged. Using tank mixtures for multiple treatments with combination of antistress preparations and calcium-containing agrochemicals allows to moderate significantly the stress effect of foliar fertilizing on plants
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