| Item | Synonyms | Description |
|---|---|---|
| Kay Gray | (Plant patent 4943), released from a private breeding program in Wisconsin operated by Elmer Swenson, is listed as one of the hardiest grapes grown in the upper Midwest. The golden fruit ripens very early, and the vine is quite disease resistant. Clusters and berries are small. | |
| Kishmishi | same as Thompson Seedless. | |
| Kyoho | The fruits are blackish-purple, or almost black, with large seeds and juicy flesh with high sugar content and mild acidity.Like the Concord, Kyoho is a slip-skin variety, meaning that the skin is easily separated from the fruit. The seeds are bitter and the skin is not traditionally eaten. The grape maintains some of the flavor qualities of the Concord, known to consumers from the flavor of most grape jellies and Concord grape juice |