Abstract
The influence of climatic factors on grape yield, fertility indicators of grapes (absolute coefficient of fertility, relative coefficient of fertility, absolute productivity indices, relative productivity indices), but also sugar and total acidity content in three cultivars of 'Fetească' ('Fetească Albă', 'Fetească Neagră' and 'Fetească Regală', respectively) was evaluated during 2016-2020 2016 period at the experimental field of National Research and Development Institute for Biotechnology in Horticulture Ștefănești. The highest grape yield were recorded in 2018 to all three Cultivars analysed (20,33 t/ha 'Fetească Albă', 19,44 t/ha 'Fetească Neagră' and 19t/ha 'Fetească Regală', respectively), while the lowest values were measured in 2016 at all cultivars. Highest sugar content was measured in 2019 and 2020, and lowest in 2017, 2016, respectively. The highest acid content was recorded in 2017 and 2016 (4,64 g/l, 4,65 g/l, respectively) as a result of heavy rainfall during the growing season, especially in June and September. Differences between the studied parameters were statistically significant. The results of the five years showed that the yield and quality of grapes were in direct relation with the weather conditions in certain years of experiments.
Highlights
Romania's viticulture is recognized for vineyards and viticultural centres, known notonly for their fine wines, and for the special quality of table grapes
Statistical data from 2018 show that the total area cultivated with vine for wine in Romania was 171.2 ha in 2016, 170.3 in 2017 and 171.1 ha in 2018 and the total wine production was 33030. 7 thousand hl in 2016, 4264.1 in 2017 and, respectively 5088.1 in 2018. (Ministry of Agriculture and Rural Development, Data source: point 1.2 - INS date - Online tempo, point 1.3 - MADR operative date, point 4)
The aim of this study is to evaluate the impact of major climatic parameters on the yield and quality of grape of three cultivars of 'Feteasca', especially during the vegetation season in Ștefănești wine growing region in the last 5 years
Summary
Romania's viticulture is recognized for vineyards and viticultural centres, known notonly for their fine wines, and for the special quality of table grapes. Statistical data from 2018 show that the total area cultivated with vine for wine in Romania was 171.2 ha in 2016, 170.3 in 2017 and 171.1 ha in 2018 and the total wine production was 33030. All listed above impose a constant need for research ofimpact of changing climate on agrotechnological and economical characteristics of the dominantly cultivated cultivars of vine in south of Romania, and the cultivars'Feteasca'as well, which was one of the leading vine cultivars for the production of high quality wines. The aim of this study is to evaluate the impact of major climatic parameters on the yield and quality of grape of three cultivars of 'Feteasca', especially during the vegetation season in Ștefănești wine growing region in the last 5 years
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