I need to preserve tree stem segments, intended for sap flow probe calibration, for ~ 1 month after cutting them. I know I need to minimize dehydration but not sure if I should worry about fungal attack by leaving them wrapped in plastic for weeks until I can use them in the lab for the calibration procedure.
You certainly would get fungal infection leaving the samples in a plastic bag! I am not sure what would you like to measure - the intensity of sap flow, or the content of the liquid. For the first reason, I would go for simple -20 freezer, but if you need precise molecular analyses, -80 would be necessary.
Hi Maria,
Which sap flow sensor are you trying to calibrate?
Michael
Hello Michael,
I have custom made heat pulse sensors used in various species of tropical trees.
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