6-Benzylaminopurine (6-BA) is a synthetic cytokinin that promotes cell division, induces bud differentiation, and delays senescence, making it suitable for bud promotion management in flower shaping.
Usage: 6-BA is usually used in soluble powder form. It should first be dissolved in a small amount of dilute acid (such as 0.1 mol/L hydrochloric acid), then diluted with water to the desired concentration. For promoting bud growth in flowers, the recommended concentration range is 10–50 mg/L, varying depending on the flower species. For example, roses can be treated with a 2% formulation diluted 200 times (approximately 50 mg/L) by soaking seeds or spraying. Azaleas can be sprayed with a 40–80 times dilution (approximately 25–50 mg/L) during the growing season to promote lateral bud growth. When spraying, the buds or growing points should be evenly covered, avoiding high-temperature periods; it is recommended to spray in the morning or evening. Application Effects: 6-BA effectively breaks bud dormancy, induces flower bud differentiation, and increases the number of lateral buds, thereby improving plant compactness and flowering volume. For example, its application on plants such as apples and roses can promote lateral branch sprouting, which is beneficial for shaping and pruning. However, it should be noted that excessive use may lead to excessive growth or deformities. It is recommended to conduct a small-scale trial before first use.
Precautions: 6-BA has slow mobility within the plant and should be sprayed directly onto the site of application. Combining it with other regulators such as gibberellin (e.g., 100 mg/L 6-BA plus 100 mg/L GA3) can enhance the bud-promoting effect. Store in a cool, dry place, avoiding direct sunlight.
