Essential oils extracted from flower petals of palmarosa (Cymbopogon martini), evening primrose (Primula rosea), lavender (Lavandula angustifolia) and tuberose (Polianthus tuberosa) were tested for their antibacterial activities against gram-positive and gram-negative bacteria. Different concentrations of each essential oil ranging from 10-100% were tested. Both gram-positive and gram-negative ...

BACKGROUND Based on Iranian traditional medicine, the root cause of anxiety is due to the heart and brain diseases. The use of aromatic substances is one of the basic treatments for the heart and brain diseases in Iranian traditional medicine. Concerning the prevalence of test anxiety among students, this study was conducted to determine the effect of inhalation of essential oils of Polianthes ...

Plant spacing and nitrogen are the most important factors for increasing tuberose quality and quantity. In this study, field experiment carried out as factorial Randomized Completely Block Design (RCBD) in 3 replications. Different levels of nitrogen (0, 50, 100, 150, 200, 250 kg/ha) of ammonium nitrate was used. Second factor was different plant spaces (10, 15, 20 and 25 cm). Results showed th...

ntroduction: ‘Perla’ and ‘Mexicano’ are varieties of tuberose grown in Mexico that have potential for commercialization export; however, no preservative solutions been evaluated to increase their shelf life. Objective: To determine physical, physiological, chemical changes occur postharvest when different applied. Methodology: Tuberose flower spikes Perla, with two open basal flowers, were plac...

abstract paclobutrazol is one of the most important triazolic compounds which are used as growth retardants in some crops. in this study, the effect of application methods and concentration of paclobutrazol on plant height of tuberose and possibility of pot production was investigated. in the first experiment, tuberose bulbs were soaked in 0, 25, 50, 75 and 100 mg.l-1 paclobutrazol for 10, 20 a...