ISHS Acta Horticulturae 528: VII International Symposium on Grapevine Genetics and Breeding
DIFFERENTIATION AND IDENTIFICATION OF 500 GRAPEVINE (VitisI L.) CULTIVARS USING NOTATIONS AND MEASURED LEAF PARAMETERS |
| Authors: | T. Weihl, E. Dettweiler |
| Keywords: | ampelography, cultivar identification, discriminant analysis, Vitis L |
| Abstract:
525 cultivars were described by 151 morphological descriptors. Based on these data an identification procedure consisting of four steps was developed. Step one is working like a dichotomous key using 11 descriptors of the shoot tip, leaf and the berry. Step 2 to 4 use exclusively measured and calculated leaf characteristics. The cultivar specific variation was covered through multisites data recording: 80 % of the cultivars were described at different sites and 20 % of the cultivars were described at least twice at the same geographical site. Discriminant analysis was applied for statistical data treatment. The identification height is at about 90-100 %. | |
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