From: An exploration into the relationship between mineral elements (nitrogen and phosphorus) and nutritional quality in soil-watermelon (Citrullus lanatus) system
Watermelon
TF (root-stem)
TF (root-leaf)
TF (root-peel)
TF (root-seed)
TF (root-pulp)
N
P
Total acid
0.09
− 0.25
0.39*
0.20
0.41*
0.08
0.35
0.01
0.51**
0.06