VARIATION OF STRUCTURAL BUNCH AND BERRIES INDICATORS AND PHYSICO-CHEMICAL WINE PROPERTIES OF CABERNET SAUVIGNON CV. UNDER INFLUENCE OF DEFOLIATION AND HARVEST TIME IN AGROECOLOGICAL CONDITIONS OF CENTRAL SERBIA

Authors

  • MARKOVIĆ1 NEBOJÅ A
  • ZORAN PRŽIĆ
  • SLAVICA TODIĆ1
  • VLADO LIÄŒINA
  • MARIANA NICULESCU
  • VELE TEÅ EVIĆ

Abstract

Defoliation and different harvest time can affect structural composition of bunch and berries. Research was carried out at Cabernet Sauvignon variety in vineyard of King Peter I Karadjordjevic-Royal Winery, Serbia. Defoliation included treatments with 4 and 8 removed leaves and control. The harvest was done at full maturity and 15 days after. Structural cluster indicators in time of full maturity had higher value in treatment with 8 removed leaves. At late harvest the highest values was founded in treatment with 4 removed leaves (epidermis 15.2%, mesocarp 73.8%, seeds 10.9%). By physico-chemical analysis of wines was founded the highest alcohol content in treatment with 8 removed leaves (12.13% v/v). In control was recorded the highest levels of total extract and extract without sugar. Total acid content was higher in treatment with 8 removed leaves. The highest level of total polyphenol level (1.584 g/l) was noted in treatment with 4 removed leaves. In treatment with 8 removed leaves was recorded the highest level of total anthocyanins (0.166 g/l). In term of late harvest most of examined parameters had higher values.In the second experimental year parameters of physico-chemical wine analysis had significantly higher values compared to both harvest terms.

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Published

2018-08-20

Issue

Section

Working Group 3: Fundamentally Disciplines and Environment and Plant Management