6
D. MadhuBala et al.
Table 1
Size of different types of cells in the leaves of water hyacinth
Location
Diameter in
µm *
Upper epidermal
cells
Lower epidermal
cells
Xylem cells Phloem cells Vascular bundle Storage cells Sclereids Parenchyma cells Air cavity
Singanalur 16.36
12.09
27.16
16.21
125.32
68.32
11.74
39.34
204.94
Sulur
15.30
9.82
5.41
3.86
29.58
32.61
37.87
51.61
32.21
Ukkadam 14.73
10
2.44
5.46
44.52
54.47
46.54
49.86
35.57
Yakra
18.89
13.51
7.07
7.11
73.46
31.16
70.75
25.59
69.33
*
Mean of six replicates