Characterization of plant growth substances in Citrus unshiu and their change in fruit development

Abstract

The hormonal change in fruit development of Citrus unshiu was investigated. A remarkable change in the content of auxin and ABA was observed, suggesting that the hormonal balance may affect the physiological abscission of the fruits. The occurrence of IAA, IAM, IAA-Me and ABA in the young fruits was confirmed, while citrus auxin could not be detected.