Abstract
Both biological properties and physicochemical properties, that is, biosynthetic activity of plants and vapor pressure of each compound, determine emission amounts of floral scents. Temperature influences both factors. Furthermore, the biological activity sometimes shows a time-course change. This leads to the following important knowledge in understanding floral scent property: 1) Composition ratio of floral scent compounds emitted from a flower is drastically different from one contained in the flower tissues. 2) Floral scent components should be evaluated considering time-course change as well as change caused by temperature.
