Eight pots, growing three barley plants each, were exposed to a high tension discharge while nine similar pots were enclosed in an earthed wire cage. The number of tillers (shoots) in each pot were as follows;

Caged

17

27

18

25

27

29

27

23

17

Electrified

16

16

20

16

21

17

15

20

Discuss whether electrification exercises any real effect on tillering.