The melon (Cucumis melo) belongs to Cucurbitaceae (the Gourd family). It is an annual herb that is probably native to Central Asia and Southwest Asia. This herb had been cultivated in ancient Egypt, and the main center of development was adjacent arid areas on the west. The netted cultivars was developed in the sixteenth century in British conservatories. They was introduced into Japan in the middle days of Meiji Era (about 120 year ago) and got down to cultivate in the latter term of Meiji Era. The melon consists of several groups, European netted melon, cantaloupe melon, and Asianic winter melon, and East Asian hybrid melon. The melon is also classified into smooth skinned varieties and netted cultivars by morphology.