The flower breeders who sold X-ray lilies and atomic marigolds
The quest to produce profitable new varieties – and to do so as fast as possible – at times led to breeders to embrace methods that today seem strange. There is no better illustration of this than the mid-century output of one of America’s largest flower-and-vegetable-seed companies, W Atlee Burpee & Co.
In 1941, Burpee Seed introduced a pair of calendula flowers called the “X-Ray Twins”. The company president, David Burpee, claimed that these had their origins in a batch of seeds exposed to X-rays in 1933 and that the radiation had generated mutant types, from which the “X-Ray Twins” were eventually developed.
At the time, Burpee was not alone in exploring whether X-rays might facilitate flower breeding. Geneticists had only recently come to agree that radiation could lead to genetic mutation: the possibilities for creating variation “on demand” now seemed boundless. Some breeders even hoped that X-ray technologies would help them press beyond existing biological limits.
The Czech-born horticulturist Frank Reinelt thought that subjecting bulbs to radiation might help him produce an elusive red delphinium. Unfortunately, the experiment did not produce the hoped-for hue. Greater success was achieved by two engineers at the General Electric Research Laboratory, who produced – and patented – a new variety of lily as a result of their experiments in X-ray breeding.
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