Carrot Callus Intiation Medium From Pith TissueContains the Macronutrients, Micronutrients, Vitamins, & Plant Growth Regulators required to initiate carrot callus from pith tissueProvided as 1 unit to make 10L, 25L, or 50L of medium, or as 10 units to make 1L of mediumPlant tissue culture testedWorking Concentration: 3.21 g/LpH: 3.5–4.5Soluble in water