Study On Solution Cultural Technology Of Cattleya Hybrida

Cattleya Hybrida, an evergreen perennial herbaceous flower, belongs to Cattleya genus of Orchidaceae family, originated in tropical America . It is one of the most popular tropical orchids. In recent years, the Cattleya Hybrida production develops rapidly in china, but some problems are revealed, such as immature cultivation techniques. Compared with imported products, the flower quality produced in China still need to be improved. Bryophyte is mostly used in soilless culture of Cattleya Hybrida. Solution culture is rarely studed..Through the methods of potting,simulating indoor and plant analysis,the basic hydroponic conditions for Cattleya Hybrida were studied.The results were as follows:1. Selecting experiment of nutrient solutions.The results indicated that different nutrient solutions had significant effects on the growth and development of Cattleya Hybrida. Treatment 8(1/2s of formulaâ…¢)is more suitable for growth of Cattleya Hybrida,according to the indexes of the growth and development of Cattleya Hybrida.2. Effect of different N forms and ratio on the growth of Cattleya Hybrida. Hydroponic experiment showed that different N forms and ratio had different effects on the growth and development of Cattleya Hybrida.. The growth of plants in both NO3--N and NH4+-N was better than that in single NO3--N form. The appropriate ratio of NO3--N and NH4+-N is 12:1. This treatment can promote the growth of Cattleya Hybrida and improve the flower quality.3. Different plant growth regulators had significant effects on the growth and development of Cattleya Hybrida. The disposal 1(6-BA+GA+KT=40mg/L+50mg/L+40mg/L) significantly promoted the plant growth. In reproductive period, The disposal 4(6-BA+GA+KT=60mg/L+50mg/L+100mg/L) could accelerate the growth of sprout, increasing the quantity of lateral branch and promoting the fission of Cattleya Hybrida . So it is helpful to improve the flower quality.