Latin term (meaning "swaying") for the automatic growth movement (nutating) of the plant without external stimulus. It is caused by uneven growth on different sides of a plant part. In vines, for example, this includes the circular searching movement of tendrils or the hook-shaped curvature of young shoots. The top (tip) of the growing shoot is initially curved in a hook shape and then stands upright when growth is complete. See also under vegetation cycle and grapevine.

Picture left: a shoot with a bunch of grapes and tendrils. Picture rights: the clusters of a wild grapevine (Parthenocissus).
![]()
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.
Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi