A technique for deriving and multiplying an aseptic clone of potato in culture solution is described. Using such a clone and adding malachite green to the culture solution it was possible to derive a growing tip free from virus X. This was subsequently multiplied to give a virus-free stock of the variety Green Mountain (Early Carman).
No takes yet. Share an insight, caveat, or question.
DO Norris (1954) studied this question.