This Hair bright purpose what provide that pungent Wei Very is weak or complete Gan Awareness less than onion Ji Qi System makes method. Yi Seed onion, characteristic are suppressed in what, allinnase gene Biao Da.本發明的目的在於提供辛辣味極弱或者完全感覺不到的洋葱及其製造方法。一種洋葱,其特徵在於,蒜氨酸酶基因的表達被抑制。