The 15% Coconut milk was the best to the propagation of Cattleya PLB, with the highest propagation rate and the lowest differentiation rate.

• 结果表明：六种有机添加物对PLB增殖的促进作用由大到小依次为椰乳、马铃薯、椰汁、香蕉泥、苹果汁、水解酪蛋白。