Abstract:
The purpose of this research
was to study the effect of bioregulators on the
germination of beech seeds of Plaiul Fagului-
23 origin and adaptation of seedlings under
solarium and natural conditions. The highest
mean daily germination (0.74) was observed
for 0.001 and 0.0001% (w/v, dry residue)
Juniperus sabina. During stratification under
laboratory conditions, the highest seed
germination (82.64%) occurred in 0.0001%
J. sabina. The highest seed germination rate
index was observed in 0.0001 and 0.0005%
J. sabina (1.17 and 1.57, respectively). The
average germination time of 0.01% alginite
No. 2 and 0.0005% J. sabina was below that
of the control by 1.05-1.11 days. The length
of the roots of germinated beech seeds with
alginite No. 2 and 0.001% J. sabina
significantly exceeded that of the control
(39.66 mm), reaching 56.04 and 52.05 mm,
respectively. Under solarium conditions, the
highest rate of seedling emergence was
observed in variants alginite No. 6 (92.50%),
0.0005% J. sabina (91.11%), 0.001%
J. sabina (90.00%) and alginite nano powder
(82.35%), which exceeded the control by 1.6–
1.8 times. The height of the plants in alginite
No. 2 (13.50 cm), 0.0001% J. sabina (12.24
cm) and 0.001% J. sabina (10.08 cm)
significantly exceeded the control. Under
natural conditions, the germination of seeds
treated with alginite nano powder (60.80%)
and alginite No. 6 (47.47%) was significantly
higher than that of the control (42.67%) and
those treated with gibberellic acid (43.73%).
The height of the plants treated with alginite
nano powder (28.10 cm), 0.01%
genistifolioside (29.70 cm) and 0.004%gibberellic acid (28.22 cm) significantly
exceeded that of the control.
