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Gerald L. Klingaman and Troy Henderson

Amaryllis bulb production is conducted in Africa, and to a lesser extent in Central America, Holland and Israel. Preliminary studies have shown bulb production is feasible in zone 6b using unheated greenhouses and thermal blankets during cold periods. Spun bound polyester (Reemay) and polystyrene foam (Sentinel) provided a maximum of 9C protection over outside conditions. Amaryllis bulbs have been uninjured during two successive winters. A twin scale propagation experiment was conducted on the cultivar Appleblossom. Cuttings 15mm wide that were placed in closed, vermiculite-filled plastic bags or uncovered, vermiculite-filled plastic trays produced 1.5 bulbs per cutting. Cuttings 7.5mm wide that were placed in soil in plastic bags or open flats averaged .34 bulbs per cutting. From 75 to 80 bulblets were produced per mother bulb using wide cuttings in soil or vermiculite or narrow cuttings in vermiculite.