Phenotype

The phenology in plants includes all phases during the vegetation cycle with the externally appearing characteristics or changes. The phenotype (ancient Greek phainómenon = appearance, týpos = shape) in grapevines is the external appearance from budding to dormancy, but also other characteristics. It is the visible result of the combination of genetic information and environmental conditions.

Vegetationszyklus - 1 - 3
1 = winter dormancy (after leaf fall, pruning takes place), 2 = bud swelling, 3 = bud burst

Phenotypic characteristics

Until the end of the 1980s, grape varieties could only be determined on the basis of the external characteristics of the vine or its habitus (appearance). The criteria were leaves, cluster shape (loose-berried or dense-berried), shoots and root system, as well as the flavour of the fruit. However, other characteristics and processes also influence and characterise the phenotype. To summarise, these are

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Phenotype

Phenotypic characteristics

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