Uses and effects of Gibberellic Acid (GA3)
I. Agricultural and horticultural applications
1. Gibberellic Acid (GA3) promotes seed germination and breaks dormancy
Gibberellic acid can activate the activity of enzymes in seeds, help break dormancy (such as potato tubers, certain flower seeds), and shorten the germination cycle. For example, soaking seeds with low concentrations of gibberellic acid before sowing can increase germination rate and uniformity.
2. Gibberellic Acid (GA3) improves crop yield and quality
Stem elongation: For crops such as rice and wheat, gibberellic acid can increase stem length and improve ventilation and light transmission, but the concentration needs to be controlled to avoid excessive growth.
Preserve flowers and fruits: Spraying during the flowering period of fruit trees (such as grapes and citrus) can reduce flower and fruit drop and promote the development of seedless fruits (such as seedless grapes).
Increase fruit size: Increase fruit volume by stimulating cell division (such as apples and tomatoes).
3. Gibberellic Acid (GA3) regulates flowering period and flowering time
By applying gibberellins exogenously, flowering can be advanced or delayed. For example, it is used to induce winter flowering in strawberry cultivation; in flower cultivation, it regulates the flowering period of peonies and chrysanthemums
