Knudson C Orchid MediumContains Macronutrients, Micronutrients, and Sucrose as described by Knudson (1946) Cytokines, Vitamins, and Auxins should be added as needed Provided as 1 unit to make 10L, 25L, or 50L of medium, or as 10 units to make 1L of mediumPlant tissue culture testedWorking Concentration: 22.0 g/LpH: 4.0−5.0Soluble in water