Siberian Institute of Plant Physiology and
Biochemistry, Siberian Branch, Russian Academy of Science, Irkutsk,
Russia
*E-Mail: pomorcevanatolii@mail.ru
Received June 11, 2013
The content of water-soluble
carbohydrates and respiration rate in the crown tissue of winter wheat,
rye and triticale in autumn – winter – spring were studied. In the
period and of winter significant differences were
revealed between winter crops in
the rate of respiration and content of
carbohydrates. Respiration of wheat in mid-March increased over
February to 33%, and the content of carbohydrates during this period
decreased by 10%. Despite the increase in environment temperature by
mid-March of winter rye and triticale showed not increase, but rather
decrease in the rate of respiration. A higher level of plant resistance
of winter rye and triticale to low temperatures, as compared to winter
wheat is associated with carbohydrate status and higher stability of
respiration process in winter rye and triticale in response to temperature rise in end of winter.
