zeatin Citrus Fruit-Retention Agent is a specialized citrus regulator centered on the natural cytokinin Zeatin (hydroxy-isopentenyl adenine). It efficiently reduces physiological fruit drop and promotes uniform fruit expansion while helping to increase sweetness. Classified as a low-toxicity product exempt from residue testing requirements, it is suitable for the vast majority of citrus varieties, including Shatang Mandarin, Wogan, and Navel Orange.
Key Functions and Benefits of Zeatin
1. Potent reduction of physiological fruit drop: As an endogenous cytokinin, it directly inhibits the formation of the abscission layer at the fruit stalk. It is particularly effective in preventing the first wave of physiological fruit drop in citrus, significantly lowering the probability of young fruit shedding with their stalks after petal fall. When combined with other fruit-retention ingredients, it can reduce the rate of abnormal fruit drop by 72%, thereby stabilizing the orchard's initial fruit set.
2. Promotes cell division and uniform fruit expansion:It stimulates balanced cell division in young fruit and directs photosynthetic nutrients toward the fruit, preventing issues such as uneven fruit sizes, stunted fruit, and hollow fruit. This ensures a well-shaped, plump appearance without the side effects—such as deformity or splitting—often caused by traditional expansion agents.
3. Enhances sweetness and quality:It optimizes the tree's carbon-to-nitrogen (C/N) nutritional ratio and promotes the accumulation of dry matter and sugars within the fruit. This avoids the bland flavor often associated with standard regulators, resulting in sweeter, richer-tasting pulp. Additionally, it strengthens the fruit peel, reducing the risk of splitting during the expansion phase.
4. Delays premature tree senescence: It inhibits chlorophyll degradation in leaves, maintains the photosynthetic activity of functional leaves, and extends leaf lifespan. This ensures a continuous supply of nutrients for fruit development and prevents pre-harvest fruit drop caused by late-stage yellowing or leaf loss.
