The effects of early leaf removal and cluster thinning treatments on berry growth and grape composition in cultivars Vranac and Cabernet Sauvignon

Chemical and Biological Technologies in Agriculture

Table 10 Total proanthocyanidins and proanthocyanidins per berry in Cabernet Sauvignon from veraison to harvest

A - total proanthocyanidins (mg/kg)
DOY	213	222	231
NLR-NCT	3819±511^a	4520±87^a	5119±1209^a
LR-NCT	4928±624^a	6072±586^ab	5414±1162^a
NLR-CT	4257±219^a	5245±1006^a	6074±802^a
LR-CT	4613±150^a	7283±1428^b	7157±999^a
B - proanthocyanidins per berry (mg)
DOY	213	222	231
NLR-NCT	5.01±0.57^a	4.90±0.20^a	6.04±1.19^a
LR-NCT	4.96±0.56^a	5.61±0.58^ab	6.55±1.53^a
NLR-CT	4.40±0.24^a	5.78±1.21^ab	6.55±1.12^a
LR-CT	4.97±0.52^a	6.71±1.24^b	6.95±1.25^a

Treatments: leaf removal-not cluster thinning (LR-NCT), not leaf removal-cluster thinning (NLR-CT), leaf removal-cluster thinning (LR-CT), and control (NLR-NCT).