The sounds emitted by plants are ultrasonic, beyond the hearing range of the human ear. Plant sounds are informative: mostly emitted when the plant is under stress, they contain information about its condition. The researchers mainly recorded tomato and tobacco plants; wheat, corn, cactus, and
Researchers at Tel Aviv University have recorded and analyzed ultrasonic sounds emitted by plants for the first time. The study found that plants emit specific sounds when under stress, which may be detectable by animals like bats, mice, and insects. Using machine learning algorithms, the researchers were able to distinguish between different plants and types of stress, even in noisy environments.
The researchers: “Apparently, an idyllic field of flowers can be a rather noisy place. It’s just that we can’t hear the sounds!”
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