Abstract
To more easily evaluate longevity and ethylene sensitivity in spray-type carnation flowers, the following evaluation methods were investigated. Though the vase life was negatively correlated with room temperature, differences in vase life among varieties were confirmed, irrespective of room temperature. In some varieties of spray-type carnation with several flowers on one stem, there was a difference in vase life due to the flower setting position, which was caused by a difference in flowering stage at the flower setting position. If the flowering stages were the same, the variation in vase life decreased among flowers cut to about 3 cm at the peduncle and evaluation of the original longevity of the variety was possible to control. The petal soak treatment in ethephon solution was effective for evaluation of exogenous ethylene sensitivity because it could test the mass easily and simultaneously. Furthermore, the longevity and exogenous ethylene sensitivity in the main 47 varieties of spray-type carnation was clarified using new evaluation methods.
