Eine neue Methode zur Mostgewichtsbestimmung und Klassifizierung unverletzter Weinbeeren

Authors

  • U. Stein
  • R. Blaich
  • R. Wind

DOI:

https://doi.org/10.5073/vitis.1983.22.15-22

Abstract

Das Mostgewicht von Weinbeeren kann mit Hilfe von Lösungen definierter Dichte ohne Verletzung der Beerenhaut bestimmt werden. Dadurch wird eine schnelle und einfache Klassifizierung großer Beerenmengen nach deren Reifegrad ermöglicht.
Die Leistungsfähigkeit der Methode wurde durch Bestimmung der Reifeverteilung bei Beeren von 10 Rebsorten zu definierten Zeitpunkten belegt; die Werte wurden durch Vergleich mit refraktometrisch ermittelten Daten überprüft. Das Verfahren schafft die Voraussetzung für vergleichende Routineuntersuchungen der BotrytisResistenz von Rebsorten.

A novel method for non-destructive determination of the sogar content and for classification of grape berries

The sugar degree of grape berries was determined by fractionation with defined solutions of different density without injury of the berry. This method allows the classification of !arge amounts of berries according to their maturity.
The efficiency of the method was proved by the determination of different classes of maturity in berries of 10 grape varieties at a given time. The values were compared with data obtained by refractometrical determinations. Density fractionation is the prerequisite for the comparison of the resistance against Botrytis cinerea of grape varieties on a !arge scale.

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Published

2016-02-08

Issue

Vol. 22 No. 1 (1983): Vitis

Section

Article

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