Effect of growth regulators on four potted Asiflorum lily cultivars

摘要

Four Asiflorum lily cultivars were grown as potted plants and treated with growth regulators to retard plant height. Chemicals were applied as a soil drench with concentrations of ancymidol at 0, 0.25, 0.38, or 0.5 mg ai/pot, paclobutrazol at 0, 2, 3, 4, or 5 mg ai/pot, and uniconazole at 0, 0.06, 0.08, 0.10, 0.12, or 0.14 mg ai/pot. Control plants (water drench) of 'Clubhouse', 'Modern Style', 'Best Seller', and 'Rodeo' flowered 46, 54, 60, and 66 days after planting and were 60.6, 82.5, 70.6, and 62.2 cm tall at flowering, respectively. Growth regulators had no effect on flowering time, number of flowers, or flower size. Paclobutrazol at concentrations of 3 to 4 mg al/pot produced plants 40 to 50 cm tall while uniconazole, even at the highest rates, yielded plants taller than an ideal marketable size.