Differential response of biochar in mitigating salinity stress in periwinkle ( L.) as an ornamental-medicinal plant species.

To investigate the effect of various levels of salinity and biochar on the growth and biochemical traits of L., a medicinal plant, a factorial experiment with three levels of biochar (0, 2, and 4%) and four levels of salinity (0, 1,000, 2,000, and 3,000 mg/kg soil) was conducted in pots under greenhouse conditions, in three replications, 36 pots, and 6 plants/plot. Salinity reduced the vegetative and reproductive growth and Ca and K uptake, and chlorophyll content of the plants, and increased the Na, Cl, electrolyte leakage, and antioxidant enzyme (SOD, CAT, GPX) activities.

Essential oil constituents and variations in antioxidant compounds of dried summer savory ( cv. Saturn) affected by storage conditions and ammonium sulfate.

Considering the importance of spice plants and their shelf life, as affected by various factors, the current study considered Summer savory plants ( cv. Saturn) for evaluation under the application of different concentrations of ammonium sulfate (0, 40, 60, 80, and 100 kg/ha) as primary treatments. Based on the plant response, the control group and 100 kg/ha ammonium sulfate were selected as suitable treatments for storage experiments (i.

Screening of Amaryllidaceae alkaloids in bulbs and tissue cultures of Narcissus papyraceus and four varieties of N. tazetta.

Narcissus spp. are an economically important crop for medicines in relation with the alkaloids production, mainly galanthamine, an acetylcholinesterase inhibitor used for the treatment of Alzheimer's disease. In this article an extensively study of the phytochemistry of both bulbs of different species and varieties of Narcissus grown in Iran and in vitro culture of these plants was investigated.

Polyphenolic contents and antioxidant activities of aerial parts of from the Iran flora.

Folk medicine sometimes involves the use of salvia species for therapeutic purposes. Polyphenols with the highest amounts included rosmarinic acid (7.358mg/g), catechin (1.