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【Propyl Dihydrojasmonate Definition】

Propyl dihydrojasmonate (PDJ/jasmonone) is a derivative of the plant endogenous hormone jasmonic acid. It mainly reaches the fruit through the conduction of vascular bundles. The endogenous hormone jasmonic acid is rapidly spread and expressed in plants as a plant anti-stress substance. It also promotes the synthesis and early expression of ethylene and abscisic acid, catalyzes the synthesis of fruit anthocyanins and carotene, enhances the accumulation of anthocyanins, and at the same time improves the antioxidant capacity of the fruit.

【Physical and Chemical Properties】

The appearance of the active drug is a colorless viscous transparent liquid with aromatic smell. Soluble in methanol, ethanol and acetone, insoluble in water, stable in acidic, neutral and alkaline media.

【Application】

1.PDJ can significantly increase the Fujiminori grape spike, single grain weight and soluble solids content, and promote fruit coloring.
PDJ can be used directly or mixed with amino acids, trace fertilizers. Compared with Abscisic acid and Ethephon, it will not produce the deciduous phenomenon, and can promote the healthy maturation of grapes, cherries and apples in advance and perfect coloring.

2.The U.S. Environmental Protection Agency recently approved Blush, a plant growth regulator (PGR) product from Fine Agrochemicals. Blush's active ingredient is propyl jasmonate (PDJ), which is used to improve red apple fruit color. Propyl jasmonate is a synthetic plant growth regulator. It has the same function and similar mode of action as jasmonate (JA) which is a ubiquitous natural plant regulator of vascular plants, and is less toxic to the environment.

3. PDJ can improve the capacity of drought-resistant drought-resistant antiviral rice such as rice, corn and wheat.

【Function】

1. It is a synthetic plant growth regulator, similar in structure to jasmonic acid, a natural plant regulator commonly found in vascular plants, with the same function and similar action pattern, and harmless to the environment.
2. It can promote the synthesis of endogenous S-ABA inducers, promote ethylene production and promote fruit ripening.
3. It can catalyze the synthesis of anthocyanidin and carotene, enhance the accumulation of anthocyanidin and improve the antioxidant capacity of fruits.
4. It can induce the expression of plant resistance genes, arouse the active defense of plants and enhance their resistance to adversity;
5. Improve the color of apple, improve the cold and drought resistance of wheat, maize and rice.