Abstract
The effects of foliar spray with white sugar (containing more than 98% sucrose) during the growing period on the quality of Eustoma grandiflorum for cut flowers and snapdragon for bedding plants were investigated. Foliar spray with 0.1% white sugar four times significantly increased the number of flowers of Eustoma grandiflorum, and increased the class quality index based on the cut flower length and the number of flowers. Foliar spray with 0.1% white sugar twice reduced the discoloration of leaves under dark conditions and increased the number of open snapdragons flowers in an unheated glasshouse. These findings indicated that foliar spray with white sugar during the growing period was also effective for quality maintenance or improvement in both plants.
