Response of Sunmuscat (Vitis vinifera L.) to Varying Cane Numbers When Managed on a Shaw Swing-Arm Trellis for Dried Grape Production
Table 1
Effect of varying cane number and season on yield components determined in spring for Sunmuscat over three seasons (2003/04–2005/06).
Cane number
Season
6 canes
9 canes
12 canes
15 canes
2004
2005
2006
Canes/vine
6.25a
8.83b
11.3c
13.5d
9.91
10.3
9.66
Nodes/vine
119a
171b
211c
258d
205b
188ab
177a
Nodes/cane
19.1
19.2
18.4
18.4
19.6
18.2
18.4
Shoots/vine
119a
165b
198c
255d
203b
181a
169a
Shoots/cane
19.1
18.7
17.5
19.0
20.4b
17.7a
17.7a
Shoots/node
1.00
0.96
0.94
0.99
0.99
0.96
0.95
Bunches/vine
151a
191b
226c
280d
220b
231b
186a
2003/04
133a
190b
250c
305d
2004/05
166a
205b
225b
327c
2005/06
155a
177ab
204b
209b
Bunches/cane
24.2b
21.7a
20.0a
20.7a
22.2b
22.8b
20.1a
2003/04
22.1
21.5
21.9
23.0
2004/05
25.3
23.6
19.3
23.0
2005/06
25.2c
20.0b
18.8b
16.2a
Bunches/shoot
1.27b
1.18ab
1.17ab
1.10a
1.11a
1.23b
1.14a
2003/04
1.09
1.06
1.22
1.06
2004/05
1.35
1.31
1.21
1.29
2005/06
1.36c
1.16b
1.09ab
0.97a
Mean values followed by different letters are significantly different (,n = 8) using Fisher’s LSD. Interactions between treatments and season were not significant except for bunches per vine, per cane, and per shoot. In these cases, the data shown have also been analysed for each season.
