试验表明，６ 种增色剂在红富士苹果采收前喷两次，对苹果果实着色有显著的促进作用，着色指数较对照提高３７．１％ ～４１．４％ ，但对果实可溶性固形物含量无明显影响。 The results showed that the six kinds of toner were sprayed two times before harvesting of Fuji apple, which significantly promoted the coloring of apple fruit. The coloring index increased by 37.1% ~ 41.4% compared with the control. However, the content of soluble solids No significant effect.