Name
Tsukanova Elena Mikhailovna
Scholastic degree
•
Academic rank
—
Honorary rank
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Organization, job position
Michurin Federal Research Center
Web site url
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Articles count: 1
DYNAMICS OF CATALASE ACTIVITY IN THE LEAVES OF APPLE TREES UNDER THE INFLUENCE OF FOLIAR FERTILIZING
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