Show imported seeds colored color dominant in the commercial world today Is used for the protection of the american farmer in determining the origin of imported alfalfa seed says the united states department of agriculture federal law requires coloring of all imported alfalfa seed this coloring enables the purchaser to determine ter mille at a glance the origin of the seed alfalfa seed from south america must be stained 10 per cent orange red that from africa and turkestan Turk estan must be stained 10 pm per cent red and that from canada I 1 per cent Irrl descent violet all other imported seed must be stained I 1 per cent green |