Geranium oil is known as a floral substitute of rose essential with its pungent rose-like odor and one the most valuable oils. Favorable quality properties make geranium exigible for food industry applications. This study determined chemical fingerprint using robust vibrational spectroscopy techniques (Fourier transform infrared Raman spectroscopy). The mid-infrared characterization was accompl...

A physical method is described for the rapid isolation of plant trichomes, with emphasis on stalked glandular types. The technique involved breaking frozen trichomes with powdered dry ice and collection of glandular heads by sieving from larger tissue fragments. This method was applied to several plants that bear similar stalked trichomes: geranium (Pelargonium), potato (Solanum tuberosum), tom...

Few satisfactory therapeutic agents are available for the control of Influenza virus, largely because of the continual emergence of drug-resistant mutants. Some essential oils (EOs) have demonstrated effective antimicrobial and antiviral properties in experimental conditions, but most of these studies tested the liquid oil phases, which are generally less practical and are potentially toxic for...

indian meal moth, plodia interpunctella hubner is one of the most important stored-product insects that are controlled by fumigants. however, the use of plant essential oils and their constituents may have the advantage over conventional fumigants in terms of low mammalian toxicity and can be used as alternatives to conventional fumigants. therefore, in this research, repellent activity of 18 p...

anethum graveolens l. (dill) is used widely in asian food and folk medicine but its safety profile for further clinical studies has remained unclear. after administration of total hydroalcoholic extract to mice in acute, subacute and subchronic treatment periods, toxic responses were recoreded by clinical, biochemical, hematological and pathological examinations. doses up to 2000 mg/kg in acute...

Sunflower (Helianthus annuus) plants showing chlorotic concentric rings and line patterns on the leaves were observed in field crops near Paraná city (Entre Ríos, Argentina). Virus-enriched preparations examined with a trasmission electron microscope contained quasi-spherical particles ca. 33 nm in diameter. Symptomatic sunflower samples were serologically negative for six known members of the ...

The commercial use of mechanical stimulation to control transplant growth is quite limited. To be commercially successful, the technique must be simple and flexible, and must not reduce plant quality. Brushing was applied to tomato (Lycopersicon esculentum) seedlings growing at a density of 2100 plants mby daily stroking with a piece of polystyrene. Ten or twenty daily strokes typically provide...