Abstract
This study was designed to determine the relationship between scale position and ratio of dry to fresh weight (D/F ratio) of scales in Easter lily (Lilium longiflorum Thunb. cv. ‘Hinomoto’) and also its changes during bulb storage.
Easter lily bulbs produced in Okino-erabu Island were transferred to the Kagoshima University and stored in the dark under room conditions until the beginning of the experiment. Scales were weighed before and after forced-air drying at 110°C for 10 days for the calculation of D/F ratios. Measurements were conducted at intervals of one and a half months from August 3, 1977, and terminated on February 4, 1978.
When determined on August 3, 1977, the D/F ratio of scales was greatest in the middle of the bulb and decreased to both the inner and outer directions. Extention of storage periods increased the D/F ratio of inner scales while it decreased that of outer scales. During bulb storage, weights of both lily bulbs and outer scales appreciably decreased along with the reduction in number of scales usable for propagation. These facts indicate the translocation of some nutritive substances from the outer scales to the inner ones in the lily bulb.
