Mobile Plant Analysis Lab @ pifCamp, Slovenia
DIY sap press
just use a garlic press :-)
What the heck is a "petiole"?
"In botany, the petiole is the stalk that attaches the leaf blade to the stem.:87 The petiole is the transition between the stem and the leaf blade."
Literature and Links
Handbook of Methods for Plant Analysis
Soil And Plant Analysis - Use A Lab Or Do It Yourself