Treatment

Mean cane wt g

Pruning wg kg/m

Yield pruning wt kg/g

Yield: canopy surface area kg/m2

Leaf area: yield m2/kg

2008

2009

2008

2009

2008

2009

2008

2009

2008

Control

64.1

57.7

0.81

0.60

4.80

8.98 ba

2.03 b

2.90 c

1.74

Inflorescence swelling

62.5

58.5

0.74

0.63

3.43

5.92 a

1.49 ab

2.17 ab

2.56

80% capfall

62.1

53.0

0.71

0.62

4.06

7.04 ab

1.44 ab

2.39 bc

2.54

Fruitset

64.5

58.2

0.79

0.59

3.21

6.95 ab

1.39 ab

2.22 ab

2.73

Bunch closure

60.2

55.9

0.77

0.58

3.57

6.76 ab

1.46 ab

2.01 ab

2.60

Veraison

53.6

51.5

0.63

0.53

3.49

5.76 a

1.26 a

1.62 a

2.97

Veraison + 2 weeks

56.7

62.7

0.72

0.59

3.21

5.27 a

1.24 a

1.69 a

nmc

Veraison + 4 weeks

59.1

45.3

0.71

0.50

3.17

5.71 a

1.10 a

1.62 a

nm

Veraison + 6 weeks

59.0

54.6

0.73

0.53

3.15

5.81 a

1.27 a

1.71 a

nm

Significance

nsb

ns

ns

Optimum values

20 - 40

0.3 - 0.6

5 - 10

1.0 - 1.5

0.8 - 1.2