APS_Jan2016

J ournal of the A merican P omological S ociety

10

pH

2013 NST CP1 27.00 35.28 3.58 12.75 a w 6.06 10.14 0.48 50.66 25.97 1.82 14.18 0.69 3.71 CP2 24.21 32.80 3.36 11.84 ab 6.64 13.53 0.89 53.41 35.44 1.61 13.18 0.69 3.57

CP3 30.53 38.04 3.55 11.60 ab 6.25 23.95 1.22 51.01 30.86 1.68 12.57 0.75 3.59

ST CP1 27.40 34.69 2.75 7.89 b 5.99 6.74 0.30 36.33 24.62 1.50 14.73 0.71 3.47

CP2 30.00 31.21 3.19 10.18 ab 6.38 11.52 0.65 47.13 29.45 1.62 13.44 0.88 3.40

CP3 29.79 40.50 2.42 12.00 ab 6.37 11.77 0.87 48.54 29.45 1.47 12.93 0.74 3.40

2014 NST CP1 67.90 45.00 3.44 8.27 7.27 16.16 0.95 72.62 43.25 1.83 13.83 0.69 3.32 CP2 75.51 45.23 3.92 8.51 6.87 27.10 1.73 69.88 39.67 1.86 13.68 0.69 3.23

CP3 76.76 57.52 2.23 8.17 7.82 14.46 1.00 79.20 48.11 1.83 14.19 0.68 3.24

ST CP1 72.99 50.17 2.48 8.69 6.12 15.54 1.15 97.81 55.49 2.18 14.60 0.69 3.35

CP2 98.46 43.09 2.48 8.04 7.80 20.74 1.39 85.89 46.30 1.91 13.49 0.70 3.27

CP3 76.67 30.49 2.44 7.50 5.90 18.96 1.28 59.25 37.97 1.68 11.85 0.79 3.18

TA x

(%)

Solids

(°Brix)

Soluble

(g)

Berry

weight

cluster

Berries/

(g)

weight

Cluster

vine

(Kg)/

Yield

/vine

Clusters

(µmol·m -2 ·s- 1 ) (µmol·m -2 ·s -1 )

harvest

Pn after

Pn y before

harvest

(cm) LAI z

Shoot

length

(cm 2 )

area

Leaf

Treatments

Table 2: Effects of shoot thinning (ST) and no shoot thinning (NST) and cluster thinning with one (CP1), two (CP2) or three (CP3) clusters per shoot on vegetative growth, yield parameters and fruit quality of ‘Blanc Du Boisʼ vines in 2013 and 2014. z LAI: Leaf area index y Pn: Photosynthesis rate x TA: Titratable acidity Table 2. Effects of shoot thinning (ST) and no shoot thinning (NST) and cluster thinning with one (CP1), two (CP2) or three (CP3) clusters per shoot on vegetative growth, yield parameters and fruit quality of ‘Blanc Du Bois’ vines in 2013 and 2014. Year z LAI: Leaf area index y Pn: Photosynthesis rate x TA: Titratable acidity

w Means followed by different letters within a column indicate significant differences as determined by Tukey's HSD at =0.05.