Effects of Cold Treatments on Seedling Emergence and Growth of Lilium davidii var. unicolor Bulblets

For Lilium davidii var. unicolor bulblets produced by scale propagation, the effects of cold treatments on sprouting and development were studied. The results showed that 5 °C was a more suitable temperature than 2 or 10 °C. Bulblets treated at for 3 weeks presented best uniformity seedling emergence, rate 100%. Moreover, largest bulbs observed in this treatment after growing season. It found long storage low temperatures is unfavorable bulb development. weight circumference from cold-treated significantly less those 1 to 4 weeks. During first storage, starch content decreased significantly, coinciding with an increase soluble sugars. sugar contents stored changed faster However, effect carbohydrates diminished gradually as time increased. Long not good subsequent growth study provide important information accelerating propagation L. maximizing yield.