According to Japan’s NARO, the new large grape variety “Queen Nina grape” can be harvested a little later than “Kyoho grape” and “Pione grape”. It has a higher sugar content and lower acid content than “Kyoho Grape” and “Pione Grape”. Seedless cultivation seems to be possible by gibberellin treatment. This excellent agricultural product has a bright red color that is pretty and beautiful, and its appearance is soothing. In addition to the beautiful color, it is very large and has a high impact.
With 25 ppm gibberellin treatment at the time of full bloom and 10-15 days after full bloom, the fruit weight is about 18 g, which is larger than that of “Kyoho Grape” and “Pione Grape”. The sugar content at harvest time is about 21%, and the acid content is about 0.4 g/100 ml. The flesh is crumbling and hard, and has an excellent taste. There is no astringency, and the peeling property is about the same as “Kyoho Grape”, or slightly difficult to peel. In addition, it has a crumbling texture similar to that of European grapes (easy to chew) and is hard, has a good foxy aroma, and has an image of being extremely popular with its excellent taste.