of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

The Journal is included in the list of the leading peer-reviewed scientific journals and publications, which should be published by the main results of theses for the degree of doctor and Ph.D.
The Journal is included in the Russian Science Citation Index.
Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 04 (183) 2019

Биология и биотехнологии

СОФРОНОВА В. Е. кандидат химических наук, старший научный сотрудник Институт биологических проблем криолитозоны Якутского научного центра СО РАН

Чепалов В. А. кандидат биологических наук, научный сотрудник Институт биологических проблем криолитозоны Якутского научного центра СО РАН

Петров К. А. доктор биологических наук, ведущий научный сотрудник Институт биологических проблем криолитозоны Якутского научного центра СО РАН

Дымова O. В. кандидат биологических наук, старший научный сотрудник Институт биологии Коми научного центра УрО РАН

Головко Т. К. доктор биологических наук, профессор, главный научный сотрудник Институт биологии Коми научного центра УрО РАН

УДК:(633.13:636.86.25) (571.56‒191.2)


Theinfluence of a late sowing date on the pigment content of an autumn vegetativeplant in Central Yakutia (62°15′ N, 129°37′ E) has been studied for the firsttime. The experiments were carried out using spring oat, Avena sativa L., cultivar (cv) Pokrovsky, commonly used in the preparation of cryofodder, the seeds of which were plantedaccording to the optimal (17 June) and late (25 July) sowing dates. It wasestablished that till the endof the first decade of September the content of chlorophylls (15-16 mg/g dry weight) and carotenoids (2,9mg/g dry weight) in theleaves of late sowing plants were higher by 11–13 %compared to control plants at the same phases of growth anddevelopment. Autumn decreasein temperature from the second half of September until the beginning of October (from +7…+8 °C to near-zero) led to a gradual reduction of chlorophylls (a+ b) content by 40 %. The ratio Chl a/Chl b remained almost constant, a significant increase of which wasnoted only at near-zero temperatures due to a greater degradation of Chl b than Chl a. At the same time, carotenoids showed greaterresistance to low temperatures. When green plants in the milk ripeness phase went under snow inOctober, the total carotenoid content was 2,2 mg/g dry weight. The proportion of individual carotenoids inthe total pool of yellow pigments of late sowing plants did not depend onthe phenological phases ofgrowth and development, as well as on seasonal temperature decrease. The share of β-carotene accounted for 26–30 % of the carotenoidssum, xanthophylls lutein and zeaxanthin make up 39–40 %, violaxanthin ‒ 17–21 %, neoxanthin ‒ 9–10 %, antheraxanthin ‒ 4–5 %. Losses of carotenoids did not exceed 20 % and their ratio remained almost unchanged duringwinter storage of green mass of frozen plants in rolls.


oats, sowing dates, autumn vegetative plants, low temperatures, cryofodder, chlorophylls, carotenoids, xanthophylls.


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