Tulip can be grown in parks as ornamental plant and cut flowers, or possibly in protected areas for cut flowers during winter and early spring. An important condition for the successful cultivation of tulips is the quality of the bulbs that are going to be planted and their biological preparation. Under the quality aspect bulbs have
... to be uniform and large, preferably with circumference greater than 11 cm and must have good phytosanitarical status. Preparation of organic bulbs for ensuring the continuation of the differentiation process of germs (floral), is made during the storage. It is known that the preparation of organic bulbs are made in interaction with environmental factors, among which temperature plays an important role. At the beginning and throughout the process of biological preparation, temperature is maintained at a higher level then the temperature must be low until planting. The temperature level and the duration of treatment varies by followed objective respectively early or late flowering and staggered flowers production over a longer period of time.