Since 2000, the narrowing of the scope of varieties was carried out through line selection and fixed to 'Shizu-kei No. 88,' which was very close to Yamada nishiki but had a lower height.
2000年以降は系統選抜によって品種の絞り込みを行い、山田錦とよく似ながらも背丈の低い「静系88号」に確定。