In article , Sacha
writes
But was it in that book that the experiment I'm thinking of was cited? Do
you recall?

Yes, [I still have the book] there are a lot of experiments quoted
linking plants, their life, their feelings, their growth etc. to
electricity and magnetism. The one you refer to was actually a test to
see if plants had extra-sensory perception - between them and/or to
other beings. I quote a part of the experiment:

'He [Clee Baxter, a lie detector expert] then conceived a worse threat:
he would burn the actual leaf to which the electrodes [of a lie
detector] were attached. The very instant he got the picture of flame in
his mind, and before he could move for a match, there was a dramatic
change in the tracing pattern on the graph in the form of a prolonged
upward sweep of the recording pen. Bakster had not moved, either towards
the plant or towards the recording machine. Could the plant have been
reading his mind?' Later Bakster reluctantly concluded that it had.

--
Alan & Joan Gould - North Lincs.