does moisture on the leaf greatly affect results?

Project Guidance

Default avatar

Anne Stanton

Jun 2015

Hi, I'm beginning to use Photosynq on wheat to measure phi2 and SPAD. I went out this morning to collect data in a farmer's field and it was extremely damp so I'm now wondering about the effects of moisture on the readings that I've collected. Anyone out there with experience regarding this? Thanks.

Thumb 012409 pbi 160 low low res headshot

Greg Austic

Jun 2015

Hey Anne - sorry for the delay here, just catching up.

Yes, the circuit board is pretty exposed and water could leak in. So far I have not had this happen, and I'm not a particularly careful measurer :)

So... I'd say:

  • If there's beads of water, wipe them off
  • If there's a water sheen or the leaf is just wetted a little, no big deal
  • If at any time you see water building up on the device that's noticeable, try to wipe it off