PECULIARITIES OF SUBSTANCES TRANSPORT IN PLANTS WITH DIFFERENT DEGREE OF WATER-SUPPLY

Using a simultaneous introduction of 36Cl-, 14C-compounds and THO through separate strands of roots of tomatoes, a different relative rate of their transport to leaves is established; the least rate is shown for water. The delivery of all the labeled substances to the lower, old leaves with a low level of physiological activity was less intensive than to the leaves functioning actively. Analysis of the kinetics of the radioactivity in different organs showed that water and other substances entered the fruits not directly from the roots but from the leaves feeding these fruits. No direct relation in the transport of substances is established between the fruits and leaves feeding these fruits. With drought the transport intensity in plants for water and other substances lowers considerably.