Gibberellic Acid Introduction

Gibberellic acid (GA3 / GA4 + 7) is a broad-spectrum plant growth regulator. Gibberellic acid 4% EC has the advantages of long production history, mature processing technology, high efficacy, convenient use and stable properties.

Gibberellic acid (GA) promotes early growth and development in crops, increases yield, and improves quality. It breaks seed, tuber, and bulb dormancy to stimulate germination. GA reduces flower and fruit shedding, enhances fruit bearing, and can produce seedless fruits. It synchronizes flowering in biennial plants to bloom within the same year. Applied via spraying, smearing, or root dipping, GA3 and GA4+7 are widely used in rice, wheat, cotton, fruit trees, vegetables, and flowers to enhance growth, germination, flowering, and fruiting.

Gibberellic Acid Uses in Plants

Seed Germination: GA is commonly used to promote the germination of seeds. It can break seed dormancy and stimulate the germination process by activating enzymes that degrade food reserves stored in the seed.

Stem Elongation: One of the most notable effects of gibberellic acid is its ability to promote stem elongation. It stimulates cell division and elongation, leading to taller plants. This property is particularly useful in horticulture and agriculture to achieve desired plant heights.

Flowering: GA can induce flowering in certain plants, especially in biennials and perennials that require specific environmental conditions to flower. For instance, it can be used to promote flowering in plants that usually need a period of cold temperatures (vernalization) to flower.

Fruit Development: Gibberellic acid is used to improve fruit set, size, and quality. In grapes, for example, it helps in producing larger and more uniform berries. It also helps to increase the yield and size of fruits like apples, cherries, and pears.

Breaking Dormancy: GA is used to break bud dormancy in trees and shrubs, enabling early growth and development. This application is particularly beneficial in temperate regions where cold temperatures can delay the onset of growth.

Leaf Expansion: By promoting cell growth, GA helps in the expansion of leaves, improving photosynthetic capacity and overall plant vigor.

Disease Resistance: Some studies suggest that GA can enhance a plant’s resistance to certain pathogens by modulating its defense mechanisms.

Gibberellic acid (GA) is used across a wide variety of plants, both in agriculture and horticulture. Here are some examples of plants where GA is commonly applied:

Cereals: In rice, wheat, and barley, GA is used to promote seed germination and seedling growth.

Fruits:
Grapes: GA is widely used to improve the size and uniformity of grape berries.
Citrus: It helps in increasing fruit set, size, and preventing premature fruit drop.
Apples and Pears: GA is used to enhance fruit size and quality.
Cherries: It can delay ripening to allow for a longer harvest period and improve fruit size.

Vegetables:
Tomatoes: GA is used to improve fruit set and growth.
Lettuce: It promotes seed germination and seedling growth.
Carrots: GA helps in improving seed germination and early growth.

Ornamentals:
Poinsettias: GA is used to control plant height and promote uniform flowering.
Azaleas and Rhododendrons: It is applied to break bud dormancy and enhance flowering.
Lilies: GA promotes stem elongation and flowering.
Grass and Turf: GA can be used to enhance growth and development in grasses, making it useful in turf management for sports fields and lawns.
Forest Trees: GA is used in forestry to promote seed germination and seedling growth, particularly in conifers like pines and spruces.

Legumes:
Beans and Peas: GA promotes seed germination and seedling vigor.

Note

Attention should be paid to the dosage. Excessive GA3 / GA4 + 7 may affect the yield.

Gibberellic acid has little water solubility, so it can be dissolved with a small amount of alcohol, and then diluted with water to the required concentration.

Gibberellic acid treatment of crops will lead to the increase of sterile seeds, so it is not suitable to apply the drug in the field where the seeds want to be left.

Packaging