Flowers for a gift are not only goods, but a medium carries a message to maintain social relationship between the sender and the receiver. Some flowers are welcome, and the others are not so, in association with whether the image of the sent flowers which come to the receiver's mind meets the human relationship or not, and is suited for the purpose or not. We developed a system aimed to incorpo...

Stem and leaf tissues of carnation (Dianthus caryophyllus) plants appear to contain a natural antisenescence factor since removal of most of these tissues from cut carnation flowers hastened their senescence. However, kinetin (5-10 mug/ml) significantly delayed senescence of flowers with stem and leaf tissues removed. In addition, the life span of cut flowers with intact (30-cm) stems was incre...