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 SM ISO690:2012YAO, Meiling, WANG, Fei, ARPENTIN, Gheorghe. The Effect of pesticide usage on grape yeast. In: BIO Web of Conferences: . Modern Trends of Science, Innovative Technologies in Viticulture and Winemaking, Ed. 1, 5-9 septembrie 2022, Yalta, Republic of Crimea. Les Ulis: EDP Sciences, 2022, Vol. 53, pp. 1-6. ISSN e: 2117-4458. DOI: https://doi.org/10.1051/bioconf/20225305001 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
 BIO Web of Conferences Vol. 53, 2022 |
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Conferința "BIO Web of Conferences" 1, Yalta, Republic of Crimea, Rusia, 5-9 septembrie 2022 | ||||||
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| DOI:https://doi.org/10.1051/bioconf/20225305001 | ||||||
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For the conventional vineyard, reducing the pesticide usage is the most important issue for converting to organic vineyard. In order to study the effect of pesticide usage on grape yeast, an investigation were designed in vintage 2020, ten vineyards (include two organic vineyards) with different treatment frequency index (TFI) were chosen, and the yeast population counted by two method: cultivate method and the direct epifluorescence technique (DEFT). The results show, the grape yeast from Moldova exist the viable but non-culturable (VBNC) state. In organic vineyards, less proportion yeast reach the VBNC, however the opposite conclusion draw from conventional vineyards. High TFI with high level VBNC yeast population, inversely, less culturable yeast. No matter in which yeast state, the treatment of powdery mildew is the most influential factor on yeast population |
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