• commercial, US only plant sensor & planting database > http://www.easybloom.com/buy/overview.html
• people having trouble with carol reiss' action potential measuring experiment
• carol reiss on her action potential measuring experiment
• System for sensing electrical potential particularly in plants. Patent number: 4039942
• The 'Crescograph' invented by J.C.Bose
• Backster's polygraph experiments
• “Detecting Biodynamic Signals” by Michael Theroux > http://www.borderlands.com/archives/arch/detectin.htm
• “Als planten konden praten” sensoren in wageningen » http://library.wur.nl/file/wurpubs/wurpublikatie_i00365456_001.pdf
• plants on the phone botanicalls
• a pot plant that blogs from a japanese cafe > http://www.pinktentacle.com/2008/10/midori-san-the-blogging-houseplant/
• Fertometer: http://www.fertometer.com/

(quite detailed description of how it works. it's basically a resistance meter: http://www.fertometer.com/specs.html)

what can be measured?

• plant physiology
  • moisture levels / tension
  • action potentials (Reiss)
  • […]
• environmental
  • soil moisture
  • pH level
  • temperature
  • uv / light levels

what can be observed or recorded 'subjectively'?

• plant
  • species, common name, individual name
  • general characteristics (eg. height, width, density, branches)
  • leaf qualities (eg. shape, arrangement, simple/compound, etc)
  • foliage qualities (eg. colour, shape, feel, density, etc)
  • health & happiness (as observed by the gardener)
  • favourite music
• the plant's environment
  • what is it like?

plants producing electric production in Plant MFC ??

EEML “Extended Environments Markup Language (EEML), a protocol for sharing sensor data between remote responsive environments, both physical and virtual.” http://www.eeml.org/

“SensorML is an Open Geospatial Consortium standard markup language (using XML Schema) for providing descriptions of sensor systems. By design it supports a wide range of sensors, including both dynamic and stationary platforms and both in-situ and remote sensors.” SensorML

• “Plant neurobiology: an integrated view of plant signaling” > http://crb.colostate.edu/home/Design/Assets/papers/Brenner2006.pdf
• “Plants as Sensitive Agents” > http://www.borderlands.com/newstuff/research/plantsas.htm
• see also plant perception and HPI