Productivity and quality of juices from different genotypes of ‘Bordô’ grape (Vitis labrusca) in the Vale do Rio do Peixe -SC region

ABSTRACT The present study aimed to evaluate productive characteristics and the physical, chemical and sensory quality of juices elaborated from different genotypes of the ‘Bordô’ cv. produced in the Vale do Rio Peixe-SC region, in 2016/17. The 11 clones evaluated were identified as: G03, G07, G08, G10, G12, G13, G15, G16, G17, G18 and G19. At harvest, fruit production and quality were evaluated. The mean productivity of the 11 tested genotypes was 31.2 t ha-1, with a production of 18.7 kg/plant. Genotypes G13, G16, G19 and G08 showed higher productivity in t ha-1 and kg/plant. G10 had the highest acidity. Genotypes G18 and G19 showed lower color intensity and phenolic compounds. Sensorially, genotypes G19 and G16 received lower scores for color, pleasant aroma and overall impression aspects. The 11 ‘Bordô’ genotypes evaluated showed high productivity and favorable physical, chemical and sensory characteristics for the industrialization of juices in the Vale do Rio do Peixe-SC region, with the exception of the juices of genotypes G18 and G19, which showed little color, something that may end up mischaracterizing the 'Bordô' juices.摘要 本研究旨在评估2016/2017年度于佩谢河谷（Vale do Rio Peixe-SC）产区种植的‘Bordô’品种不同基因型果实酿制的果汁的生产性能及物理、化学与感官品质。供试的11个无性系分别为G03、G07、G08、G10、G12、G13、G15、G16、G17、G18及G19。在收获期对果实产量与品质进行了测定。11个供试基因型的平均公顷产量为31.2 t·ha⁻¹，单株平均产量为18.7 kg。其中G13、G16、G19与G08的公顷产量及单株产量均更高。G10的酸度最高。G18与G19的色泽强度及酚类物质含量均较低。感官评价结果显示，G19和G16在色泽、怡人香气及整体印象维度的得分均偏低。本试验所评估的11个‘Bordô’基因型在佩谢河谷（Vale do Rio do Peixe-SC）产区均表现出较高的生产性能，其物理、化学及感官特性均适宜果汁工业化生产，但G18和G19基因型酿制的果汁色泽较浅，这可能会导致‘Bordô’果汁的典型特征发生偏差。