NaCl stress is one of the reduction reasons of the
medicinal plants and crop yield. This research was aimed
to investigate the effect of titanium nanoparticles under
salinity stress on quality of essential oil components
Dracocephalium moldavica L. The study was conducted in
a completely randomized design in greenhouse, controlled
environment, with Three treatments including 0 (control),
50, 100 mM NaCl and four treatments including (0, 50,
100 and 200 mg/1) Tio2 Np with three replications per
treatment The essential oil was first extracted and the
active components of the essential oil were separated and
identified by gas chromatography (GC) and gas
chromatography-mass spectrometry (GC-MS) methods.
By comparing the results obtained from this experiment in
different treatments, contain 5 important essential oil
components. the main compounds essential oil was,
(Neral, Geraniol, Geranial, Nneryl Acetate and Geranial
Acetate) That Effects on plants The highest percentage of
Nerol was 0.55% That treated with a concentration of 50
mg/l titanium nanoparticles and 100 mM salinity, and the
highest percentage of Geraniol was 7/51%, in 100 mg/l
titanium dioxid NPS and control salinity condition. The
highest percentage of Geranial (E-citral) was 44.5% in 50
mg/l titanium nanoparticles and 0 mM salinity. And the
highest percentage of Geranyl acetate was 22.01% and
Neryl acetate 0.92, in un-titanium dioxide NPS treatment
and 50 Mm salinity compared to the control. in plants
treated with titanium dioxide, NPs 100 and 50% salinity
were more than other treatments and controls, such as
menthol and Linalool (0/71%,.1/46%) respectively.
therefore, in the present research, titanium dioxide
nanoparticles treatment in low concentrations improved
the harmful effects of salinity stress and resistance of
Dracocephalium moldavica L plant and increased yield
essential oil by effects on essential oil components.