VARIABILITY WITHIN THE CULTIVAR 'GRUENER VELTLINER'
Gruener Veltliner is the main cultivar in Austrian viticulture. About 30% of the national production is derived from this grapevine. Recently, in some wine districts, Gruener Veltliner has been used for producing monovarietal wines with controlled origin (Districtus Austriae Controllatus, DAC). In order to reach a typical sensorial profile of the wine, linked to the cultivar from which the wine is derived, two of the most decisive steps are to improve the homogeneity of the material and to use the recommend clones. Therefore, we analysed clones and types of Gruener Veltliner according to their sensorial behaviour, their differences in aroma compounds, and their genetic profiles. Sensorial description was done by a panel test. The desired prototype is a spicy and peppery wine with stone-fruit aroma. The aromatic compounds that differentiated the clones were mostly found in acids, phenolics, and sulphur related compounds. The genetic differences of the clones were investigated using 270 SSR markers. Based on these data, the relationship between the types was calculated and their differences were demonstrated.
Regner, F., Hack, R., Hanak, K. and Santiago, J.L. (2009). VARIABILITY WITHIN THE CULTIVAR 'GRUENER VELTLINER'. Acta Hortic. 827, 245-252
genetic analysis, SSR markers