Mutation in plants is a naturally occurring phenomenon that alters the appearance of a plant’s characteristics, most notably in the foliage, flowers, fruit or stems. For example, a flower may exhibit two colors, exactly half and half. Many times, the mutant plants return to normal the next season. What Causes Plant Mutations? When a grower notices a favorable plant mutation, he or she can duplicate the effect through cuttings, grafting or division. Many variegated plants were cultivated from a mutation in a pure green tree or shrub, for example. Most gardeners can relate to finding solid green shoots in a variegated plant when new growth reverts to solid green. Removing the new green shoots can help keep the variegation intact. Changes in the genetic code occur randomly and can happen when mistakes are made during cell division and replication, after exposure to radiation or certain chemicals or because of weather
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