Table :
table 34.1
Composition of Xylem and Phloem Fluids
Substance
Xylem
Phloem
Ions, minerals (g/L)
0.
2–
4
1–
5
Amino acids (g/L)
0.
1–
1
5–
40
Sugars (g/L)
0
10
0–
300
Solute potential, Ψ
S
(MPa)
–0.02 to –0.2
–0.6 to –3