|  | Year | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 5 | 6 | 9 | 10 | 11 | 14 | 19 | ||
Treatment | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
Diameter | N | a | a | a | a | a | a | a | a | a | a |
W | a | ab | a | a | a | a | a | ab | b | b | |
S | a | b | a | a | a | a | a | b | b | b | |
D | a | b | b | b | b | b | b | c | c | c | |
Height | N | a | a | a | a | a | a | a | a | a | a |
W | b | ab | a | a | a | a | a | ab | b | b | |
S | b | ab | a | a | a | a | a | b | b | b | |
D | b | b | b | b | b | b | b | c | c | c |