With the help of BAS Reglalg, it possible to control the depth of the
tillering node in the soil. It was found that the experimental variants had higher levels
of PS2 flag leaf activity compared to the control variants. In the heading phase, the
activity of PS-2 of the flag leaf is the highest. The use of Reglalg contributes to the
preservation of PS-2 activity during the period of intensive aging of the leaf blade, this
affects the duration of the accumulation of dry matter of seeds in the ear, delaying the
death of the leaf by about 1-2 days.
