Dear EarthTalk: Is it true that plants communicate by sending chemical signals through the air? -- Melissa, via email Recent ...

In the 1960s and '70s, a series of questionable experiments claimed to prove that plants could behave like humans, that they had feelings, responded to music and could even take a polygraph test.

Plants exchange adaptive information, helping them to adjust to environmental challenges. Salt stress in plants, caused by soil salinity, often results in water loss. Plants often cope with this ...