From: Proposal for field sampling of plants and processing in the lab for environmental metabolic fingerprinting
Pre-treatment
Scores of PC 1 (mean ± sd)
Scores of PC 2 (mean ± sd)
Fresh leaves
-1.68 ± 1.06
A
2.21 ± 1.01
a
N2
-3.24 ± 4.41
B
0.94 ± 1.00
ab
Lyophilisation
-0.23 ± 1.89
AB
-0.69 ± 1.53
Air-dried
-2.21 ± 0.54
-4.09 ± 4.75
b