Use and Precautions of the Plant Growth Regulator Gibberellic Acid GA3
Gibberellic Acid (GA3) formulations include powders, soluble tablets, emulsifiable concentrates, pastes, and wettable powders. It is low in toxicity and safe for humans, livestock, and bees.
Applications:
More than 70 types of Gibberellic Acid have been isolated from higher plants and microorganisms, with GA3, GA4, and GA7 having higher activity. GA3 has the highest activity among Gibberellic Acids and can significantly promote the growth of plant stems and leaves, especially in genetically and physiologically dwarf plants; it can replace the light and low-temperature conditions required for the germination of some seeds, promoting seed germination; it can induce flowering in long-day plants under short-day conditions, shortening the growth cycle; it can induce flowering and parthenocarpy, promoting fruit growth.
Precautions:
1. Pure Gibberellic Acid has low water solubility. 85% or 75% crystalline powder should be dissolved in a small amount of alcohol before adding water to dilute it to the required concentration.
2. Gibberellic Acid is not easily decomposed in a dry state, and the agent should be stored in a dry place. Its aqueous solution is easily degraded and inactivated at temperatures above 5°C. It is easily decomposed by alkali and should not be mixed with alkaline pesticides or fertilizers. It should be prepared and used immediately.
3. Using Gibberellic Acid with foliar fertilizers is more conducive to the formation of strong seedlings. Using it alone or in excessive amounts may cause side effects such as elongated, weak plants and inhibited root growth.
Applications:
More than 70 types of Gibberellic Acid have been isolated from higher plants and microorganisms, with GA3, GA4, and GA7 having higher activity. GA3 has the highest activity among Gibberellic Acids and can significantly promote the growth of plant stems and leaves, especially in genetically and physiologically dwarf plants; it can replace the light and low-temperature conditions required for the germination of some seeds, promoting seed germination; it can induce flowering in long-day plants under short-day conditions, shortening the growth cycle; it can induce flowering and parthenocarpy, promoting fruit growth.
Precautions:
1. Pure Gibberellic Acid has low water solubility. 85% or 75% crystalline powder should be dissolved in a small amount of alcohol before adding water to dilute it to the required concentration.
2. Gibberellic Acid is not easily decomposed in a dry state, and the agent should be stored in a dry place. Its aqueous solution is easily degraded and inactivated at temperatures above 5°C. It is easily decomposed by alkali and should not be mixed with alkaline pesticides or fertilizers. It should be prepared and used immediately.
3. Using Gibberellic Acid with foliar fertilizers is more conducive to the formation of strong seedlings. Using it alone or in excessive amounts may cause side effects such as elongated, weak plants and inhibited root growth.
