The website of the Forest Institute of the Karelian Scientific Center reports that, during the second stage of the test site arrangement, samples of the phloem of model pine trees, the main forest-forming species of the European North of Russia, were collected in 18 sampling areas. The samples will be used in future studies of the anatomical structure of the phloem, the sugar content and osmolarity of the solution in the course of phloem transport. Young seedlings with needles were also collected to assess predawn and midday water and osmotic potentials. The findings will allow the researchers to estimate the speed of phloem transport and the mass of transported carbon from pine tree canopies to root systems in the area.
The works were performed by specialists in woody plant anatomy (T. V. Tarelkina), physiology and biochemistry (N. A. Galibina, I. A. Teslyuk), ecophysiology (D. E. Semin), and forestry (I. V. Romashkin).
Please follow the link to read a description of the works performed as part of the first stage of test site arrangement.
Source: http://forestry.krc.karelia.ru/section.php?plang=r&id=4077