Subject: Does Jagadish Chandra Bose's work prove a plant has central nervous system?

My Asian history proffessor told me an Indian scientist named Jagadish Chandra 
Bose, early in the 20th century, conducted experiments using a device he 
invented called a crescograph to measure minute changes in plants' physiology 
when the plants were exposed to various external stimuli. According to my 
proffessor, the plants' physiological changes proved Bose's claim that plants 
have a central nervous system. For example, according to my proffessor, Bose 
injected a plant with ether, an anesthetic, and the plant fell asleep. I 
haven't been able to find much info on Bose's experiments, but here are some 
sources:

http://en.wikipedia.org/wiki/Jagadish_Chandra_Bose

http://en.wikipedia.org/wiki/Crescograph

http://www.ncbi.nlm.nih.gov/pubmed/16359611

In response to several other questions, madsci has claimed plants don't have 
nervous systems. Do the results of Bose's experiments prove otherwise, or was 
he mistaken? Do you know anything else about Bose's plant experiments? Also, my 
proffessor doesn't think a plant should respond to heat if it doesn't have a 
nervous system. Is he right? What happens physiologically to a plant exposed to 
heat?

Re: Does Jagadish Chandra Bose's work prove a plant has central nervous system?