Evaluting Growth and development characteristics of yearling Oriental lily bulblet grown under Fe, B, Mn and Mo deficiency conditions

Lilium is one of the most important cut flowers in the world. The key to successful production of this flower is the use of flower bulbs with proper size and quality. In this research, the growth and development of scale bulblet of Lilium under deficiency conditions of some micro-elements that affect photosynthetic capacity of plant (iron, boron, manganese and molybdenum) were studied. Three different sizes of scale bulblet were irrigated with six different nutrient solutions and were studied along with control treatment. Results showed that during the production period of yearling bulblet, if scale bulblets have small diameter (less than 12 mm), it is necessary to add micro-elements into nutrient solution. Therefore, it should provide the minimum requirement of the plant for micro-elements based on nutrient solution which is typically the Hoagland solution. While, large scale bulblets (over 13 mm to 20 mm) compensated the deficiency of micro-elements especially iron and manganese, and the plants produced had the potential for photosynthesis to increase the size of yearling bulblet. Therefore, it is suggested that two iron and manganese elements and 15 mm in diameter of scale bulblets should be used to produce flower bulbs.