Gibberellin has effects on promoting plant germination, branch and leaf growth, as well as early flowering and fruiting. It has a significant yield increase effect on crops such as cotton, rice, peanuts, broad beans, grapes, and also has good effects on wheat, sugarcane, nurseries, mushroom cultivation, bean sprouting, and fruit trees.
Introduction to gibberellic acid
Gibberellic acid, also known as gibberellin, 920, etc., refers to a class of compounds with gibberellin backbone that can stimulate cell division and elongation. It is one of the regulators with significant regulatory effect and the widest range of use at present.
The effect of gibberellic acid:
The most obvious biological activity of gibberellic acid is to stimulate plant cell elongation, resulting in plant growth and leaf enlargement;
Can break the dormancy of seeds, tubers, and root tubers, promoting their germination;
Can stimulate fruit growth, increase seed setting rate or form seedless fruits;
It can replace low temperature and promote early flower bud differentiation in some plants that require low temperature to pass through the growth stage;
It can also replace the effect of long sunlight, allowing some plants to sprout and bloom even under short sunlight conditions;
Can induce α- Amylase formation accelerates the hydrolysis of stored substances in endosperm cells.
Application Technology of Gibberellic Acid
1、 Gibberellin breaks seed dormancy
Apples: Spraying a concentration of 2000-4000mg/L gibberellin solution in early spring can break the dormancy of apple buds and have a significant effect.
Golden Lotus: Soaking the seeds in a 100mg/L concentration of gibberellin solution at room temperature for 3-4 days can promote germination.
Strawberry: It can break the dormancy of strawberry plants. In strawberry greenhouse assisted cultivation and semi assisted cultivation, it is carried out after 3 days of greenhouse insulation, that is, when the flower buds appear more than 30%. Each plant is sprayed with 5mL of 5-10mg/L concentration of gibberellin solution, with a focus on spraying the heart leaves, which can make the top inflorescence bloom earlier, promote growth, and mature earlier.
2、 Gibberellin protects flowers, fruits, and promotes growth
Eggplant: Spraying gibberellin solution at a concentration of 25-35mg/L once during flowering can prevent flower drop, promote fruit setting, and increase yield.
Tomatoes: Spraying gibberellin solution at a concentration of 30-35 mg/L once during flowering can increase fruit setting rate and prevent hollow fruits.
Chili peppers: Spraying gibberellin solution at a concentration of 20-40mg/L once during flowering can promote fruit setting and increase yield.
Post time: Sep-19-2023