Winegrowers Supplies -  Vine variety information

Einset Seedless  (originally known as NY 63.878.1)

Mother: Fredonia
Father: Canner (Hunisa x Sultanina)

Year of breeding: 1963. The original seedling was planted in 1965 and fruited in 1967.
       Own-rooted vines were propagated for further testing and were first planted in 1969.
       Has Plant Patent number 6160.
Country of origin: USA: New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456.

 

Einset Seedless is an early-maturing, red seedless grape. The berries are oval and bright red with a light waxy bloom. The flowers are perfect. The medium soft seed remnant is occasionally but not usually noticeable. Berries are medium-sized in the absence of gibberellin treatment or girdling. The skin is slightly tough, adherent and resistant to cracking. The skin is slightly tough and adheres to the tender flesh. The flavour is fruity with a mild note of labrusca and strawberry-like character. The grapes are pleasantly sweet with a high Brix/acid ratio. The shouldered clusters are attractive and medium in size.

Own-rooted vines are vigorous and moderately productive when grown in phylloxera infested soils. The vines are susceptible to powdery mildew but resistant to botrytis bunch rot. A more rigorous spray schedule than required to control powdery mildew on Concord is necessary for Einset Seedless in New York. Downy mildew has appeared on the fruit clusters in some years.

The clusters respond well to hormone (gibberellin) sprays or cane girdling to improve cluster compactness and berry size, but when used precautions should be taken to avoid overcropping. In such cases cluster thinning may be required. Clusters are loose to well-filled and therefore have space for gibberellin-increased berry size.

Trunk injury due to cold has been very rare. The original seedling, planted in 1965, was injured in 1968 and 1970. No other trunk injury has been recorded in any Geneva planting.  Winter hardiness of buds ranks with the best of the seedless table grapes. Following the severe winter of 1980-81, Canadice had 70%, Remaily Seedless 93% and Einset Seedless 65% shootless nodes. At a nearby but slightly better site, Concord had 6%, Himrod 56% and Lakemont 80% shootless nodes. At the Vineyard Laboratory (Fredonia, NewYork) in 1984, Einset Seedless had 32%, Himrod 42%, Lakemont 67% and Remaily Seedless 83% shootless nodes.

Einset Seedless has performed well in plantings at Fredonia and Riverhead, New York. Because it combines early maturity with an extended storage life, and because of its high fruit quality, winter hardiness, and favourable response to gibberellin sprays, Einset Seedless is considered to be an outstanding grape release. It has good storage potential up to the end of November.

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