![]() ![]() Though we may hear this information and feel compassion for the plants' pain, there is no definitive evidence to date that plants have "feelings" in the human sense of the term, Hadany said. We still don't know for sure if plants 'feel' painĪ cactus on air in a greenhouse in Tel Aviv University. ![]() Hadany said she and her colleagues wrote a patent to adjust irrigation using acoustic information. "I don't mean that it would come instead of visual monitoring of plants, but I'm thinking eventually that the combination of visual and acoustic monitoring can be stronger," she said. ![]() For instance, tomato plants emit sounds of stress before they started looking dehydrated, Hadany said. This might be very helpful for agriculture. "We can separate between sounds emitted by tomato and tobacco, between tomato and cacti, and also between cut tomato and dry tomato a little bit dry tomato and very dry tomato," she said. The computer was also able to distinguish the sounds from different types of stress, and even from different types of plants, said Hadany. When they fed this library of sounds to a computer, the scientists found the machine was able to distinguish a stressed plant from a healthy plant. To test how much information is contained in these noises, the scientists recorded tomato, tobacco, and cactus plants when they were healthy or stressed with drought, infection, and cutting. Scientists have found that plants emit many high pitched clicks when stressed that are inaudible to humans. ![]()
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