Flower image retrieval is a very important step for computer-aided plant species recognition. In this paper, we propose an efficient segmentation method based on color clustering and domain knowledge to extract flower regions from flower images. For flower retrieval, we use the color histogram of a flower region to characterize the color features of flower and two shape-based features sets, Cen...

Essential oils are used in a wide variety of consumer goods such as detergents, soaps, toilet products, cosmetics, pharmaceuticals, perfumes, confectionery food products, soft drinks, distilled alcoholic beverages (hard drinks) and insecticides. The world production and consumption of essential oils and perfumes are increasing very fast. Production technology is an essential element to improve ...

the aim of this research was to improve postharvest quality and vase life of tuberose cut flowers. treatments in this experiment included: distilled water, 3% ethanol and 5% sucrose as control, thyme oil in 3 levels (50, 75 and 100 mg/l), accel in 3 level (25, 50 and 75 mg/l) and for some of flowers pulsing with 5% sucrose in first 24 hours then puting cut flowers treated with sucrose in thyme ...

Flower color variation among plant populations might reflect adaptation to local conditions such as the interacting animal community. In the northwest Iberian Peninsula, flower color of Gentiana lutea varies longitudinally among populations, ranging from orange to yellow. We explored whether flower color is locally adapted and the role of pollinators and seed predators as agents of selection by...