GABA in Grapevines - Is it only a Compound for Nitrogen Storage and/or an Import Stress and Quality Indicator?

  • Klaus SCHALLER Center for Applied Biology. University of Geisenheim, Germany.
Keywords: Vitis vinifera (c.v.White Riesling), GABA (γ-Amino butyric acid), alanine, glutamine, glutamic acid, stem, leaves, berries, growing season, nutritional status


In a series of experiments the influence of training systems, clonal material, varieties and rootstocks on the nutritional composition of leaves was tested.It was found out that a strict sampling programme is necessary to get reliable result, which can further be used for the development of fertilizer recommendations.