The auxiliary unit of measurement for ratios is used to represent proportions in percent (Latin per cento = of one hundred, hundredth). In viticulture, ratios play a role in two areas in particular.
Regarding the slope or steepness of a vineyard (steepness) see under:
For the alcoholic strength of an alcoholic beverage, see under:
Table: Norbert F. J. Tischelmayer
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Roman Horvath MW
Domäne Wachau (Wachau)