ISHS Acta Horticulturae 147: Symposium on Production Planning in Glasshouse Floriculture
YEAR-ROUND PRODUCTION OF EUCHARIS FLOWERS |
| Authors: | J. van Bragt, P.A. Sprenkels |
| Abstract:
Dry bulbs of Eucharis grandiflora Planch. et Lind., 19 to 44 mm in diameter, were planted. After 1 year the 19 mm bulbs had grown to 34 mm, the 44 mm bulbs to 48 mm. Flowering plants were obtained after treatment at 27°C. A duration of 2, 3, 4 or 5 weeks at 27°C resulted in 20, 75, 85 and 85% flowering plants, respectively. No plants flowered after 1 week at 27°C. A 27°C treatment given to plants with bulb diameters of 19, 22 or 26 mm did not result in flowering. With bulb diameters of 29, 32 or 35 mm, however, 29, 76 and 90% of the plants flowered. Leafy Eucharis plants, with bulb diameters of 35 mm or more, flowered 3 months after the end of a treatment at 27°C given during 4 weeks. The flowerstems were cut and a second treatment was given. The plants flowered again, 3 months after the end of this treatment. Forty dry bulbs were planted on a surface of 37 x 47 cm (styrofoam cucumber box). The plants were treated at 27°C when 80% of the bulbs had 2 full-grown leaves and 20% had 1 leaf. The plants flowered 212 days after the dry bulbs had been planted. They flowered again 4 months later, after another 27°C treatment. | |
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