In order to explore the feasibility of Phalaenopsis seedlings by water culture,and the optimum nutrient formulation,the effects of five kinds of nutrient solution on the growth of seedlings and the developing characteristics of Phalaenopsis roots are analyzed.The results show that it is suitable for water culture of Phalaenopsis seedlings.The roots can carry out adaptive growth and keep normal uptake function.The best nutrient formulation for the water culture of Phalaenopsis is nutrient solution IV.The amo...