ISHS Acta Horticulturae 652: I International Symposium on Grapevine Growing, Commerce and Research
TESTING OF VARIETIES AND SELECTIONS UNDER CHALLENGING CLIMATIC CONDITIONS |
| Authors: | P.E. Read, S. Gu, S. Gamet, J. Schild |
| Keywords: | Cultivars, genotypes, diseases, cold tolerance, grape pests, phenoxy herbicides |
| Abstract:
A small, rapidly developing grape and wine industry has recently become established in Nebraska. Because Nebraska’s industry is currently based upon a very limited number of varieties and because Nebraska’s climatic and geophysical characteristics vary dramatically from the eastern to the western part of Nebraska, it is imperative that additional varieties be selected in order for Nebraska’s industry to further develop and flourish. As a result, over 75 varieties and selections from several breeding programs have been tested in five locations. In the eastern part of Nebraska, elevation is about 300 meters above sea level, annual precipitation averages over 800 mm and winter minimum temperatures rarely reach -25oC; in the most western part, elevation of over 1600 m, annual precipitation of 300 mm and winter minima of -35oC prevail. Varieties and selections that have shown promise in the eastern part include ‘Riesling’, ‘Lemberger’, ‘Chambourcin’, ‘Cayuga White’, ‘Chardonel’, ‘Traminette’, ‘Cynthiana’/’Norton’, ‘Vignoles’, ‘Frontenac’, GR-7, NY 73.136.17, ES 3-24-7 (‘Prairie Star’), ES 6-1-43, MN 1166 (‘LaCrescent’), MN1200 and MN1211. A smaller list of varieties have potential in the west, including ‘deChaunac’, ‘Leon Millot’, ‘Frontenac’, ‘Valiant’, ‘Saint Croix’, ‘LaCrosse’, ‘Edelweiss’ and ‘Elvira’. Most of the varieties that may be suitable in western Nebraska are considered standards in eastern Nebraska. | |
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