红元帅、富士等红色品种,随着果实的成熟、果形稳定,果皮内所含的叶绿素逐渐消失,逐步产生花青甙,而显红色,即果面随成熟由绿转红。在营养条件较好的情况下,日照良好的果实着色红艳,而日照差或遮光的果实,着色差或不着色(呈绿色)。用透光性差或不透光的纸剪成图案粘帖于果面上,成熟后采摘,撕去粘纸,果面上就显现红绿相间的美丽图案,使之成为一种具有欣赏 Red Marshal, Fuji and other red varieties, with the fruit ripening, stable fruit shape, contained within the peel chlorophyll gradually disappear, and gradually produce anthocyanin, and significant red, that is, the fruit surface with the maturity from green to red. In well-nourished conditions, the fruits of good sunshine are colored red and the fruits of poor or shaded sunlight are colored or not colored (green). With poor light transmission or opaque paper cut into the pattern on the surface of the fruit paste, picked after ripening, tear off the sticky paper, fruit on the surface of the beautiful red and green patterns appear, making it a kind of appreciation