Abstract:

Using Phalaenopsis aphrodite H. variety Xiaoqingxin as the test material, this study explored the effects of a composite substrate composed of inert materials such as perlite and orchid stone mixed in proportion with bark, coconut shell, and other substrates on the growth and development of Phalaenopsis aphrodite H., in order to screen for a new cultivation substrate ratio that can replace or partially replace water moss. The experimental results showed that the composite substrate of 30% perlite, 55% coconut coir, 15% coconut shell, and water moss (2.5 kg·m^-3) had similar cultivation effects with water moss, and could significantly promote the growth and development of Phalaenopsis aphrodite H. The substrate has stable physical and chemical properties, strong regenerability, and greatly reduces economic costs. It can be applied and promoted in the production of Phalaenopsis aphrodite H.

Key words: Phalaenopsis aphrodite H., cultivation substrate, growth and development