Science of the seasonally determined manifestations or the development cycle in organisms with the morphological characteristics or changes that appear externally. The name is derived from the Greek "phainómenon" (visible, appearance). The phenotype of a grape variety contains a catalogue of characteristic features with the help of which it can be characterised. The annual vegetative cycle (period of development) of the vine begins with budding in spring and ends with hibernation. The phenological developmental stages of the vine are described under BBCH code.