PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Germination experiment using the seeds of Sisymbrium supinum plants. This plant, native to northern Europe, is under threat of extinction. The seeds, arranged in petri dishes, have been placed in a refrigerator to germinate. By exposing different seeds to different conditions, the scientists hope to find the best method of preserving the seeds.
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