Stems

Average length (cm)

Group-1

E1 + E3 + E4 + E6

Group-2

E2

Narrow

5.85 ± 1.54

5.08 ± 0.96

Medium

5.77 ± 1.58

5.02 ± 1.17

Wide

5.46 ± 1.72

4.78 ± 1.12