The fruit ABA content was measured by a plant ABA ELISA Kit (Jiancheng, Nanjing, China). The sucrose content was determined by the plant tissue sucrose content detection kit (Jiancheng, Nanjing, China). The titratable acid (total acid) content was measured by phenolphthalein titration. Total anthocyanins were measured by the method depicted [45 (link)]. Each treatment included three replicates, and each repeat included 10 fruit individuals.
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