Abstract

Abstract Over 70,000 plants of African violet (Saintpaulia ionantha Wendl.) from over 20 cultivars have been produced by tissue culture in this laboratory. All cultures were started from a single mother stock plant of each cultivar. The ease of the method is enhanced by using premixed inorganic salts which eliminate preparation of stock solutions and the development of media for shoot production and root production that differ only in growth regulators. The plant and flowers appear true-to-type and variegations were not lost or distorted. The plants had the typical flat leafed morphology; none had the unusual upright morphology encountered in some cases by Start and Cumming (1). Only 2 plants had obvious differences in phenotype. These were albinos from ‘Mary D’ and could not survive outside artificial media.

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