a filed experiment was conducted to assay the effect of nitrogen fertilization and cultivated density on essential oil content on dragonhead (dracocephalum moldavica) in semi-arid conditions in 100 km of south east of mashhad. the experiment was done as factorial based on randomized complete blocks design with three replications, factor included four levels of nitrogen fertilization (0, 50, 100...

introduction dragonhead (dracocephalum moldavica l.) is an annual herbaceous aromatic plant and belongs to lamiaceae family. it is native to south of siberia and himalayan hillsides. the essential oil content shows great variation due to plant origin. the main constituents of dragonhead essential oil have been reported as geranial, geranyl acetate, neral and geraniol. using organic manures and ...

objective: in order to study the effect of drought stress, salicylic acid (sa) and  jasmonic acid (ja) foliar application on hill reaction and photosynthetic pigments. methods:experiment was done as factorial on the basis of completely randomized design in 4 replications. irrigation in 3 levels (fc,   fc and  fc), salicylic acid in 2 levels (0 and 0.5 mm) and jasmonic acid in 2 levels (0 and 50...

The Moldavian dragonhead (Dracocephalum moldavica L., Lamiaceae) is an annual medicinal plant with beneficial nutritional sources that plays important roles in human and animal feed. Nanoparticles and cold atmospheric plasma increase biochemical compounds in plants. In this study, the effects of copper nanoparticles and cold atmospheric plasma on biochemical indices of the medicinal plant Draco...

We established sterile clones of a medicinal plant dragonhead Dracocephalum charkeviczii Prob. (Lamiaceae). used shoots the plants from natural habitat, notably leaf nodes with axillary bud, as explants, sterilized explants in 0.1 % Diocide for 4 minutes and cultivated them on agarized nutrient half-strength MS medium vitamins, 2 sucrose, 0.4 agar, 1 mg/l indolylbutyric acid (IBA), or 0.5 1.0 6...