Paclobutrazole 23% SC

Paclobutrazol 23% SC is a widely used Plant Growth Regulator (PGR) in agriculture.

What is it?

• Active Ingredient: Paclobutrazol (23% concentration).

• Formulation: SC stands for Suspension Concentrate, which is a stable suspension of the active ingredient in a fluid, intended for dilution with water before use.

• Mode of Action: It is a systemic PGR that works by inhibiting the synthesis of gibberellins (plant hormones that promote vegetative growth). This action redirects the plant's energy from excessive stem and leaf growth towards reproductive development.

Primary Uses and Benefits

Its main uses are to control growth and enhance production, particularly in fruit trees:

• Promotes Flowering and Fruiting: It is especially effective in mango cultivation to advance and synchronize flowering, reduce flower and fruit drop, and encourage fruiting.

• Controls Vegetative Growth: It reduces the tree's vigor and excessive foliage growth, leading to a more compact canopy. This can also reduce the need for frequent pruning.

• Improves Yield and Quality: By reallocating the plant's resources, it helps in achieving higher yields and developing better fruit size, color, and maturity.

• Enhances Stress Tolerance: It can help plants develop better resistance to environmental stresses like drought.

• Target Crops: While most famous for mango, it is also used on other crops like apple, citrus, pomegranate, and various vegetables (e.g., onion, potato, tomato).

Application Methods (Commonly for Mango)

The application method is often crucial for effectiveness:

• Soil/Collar Drench: This is the most common and generally most efficient method for trees. The recommended quantity is dissolved in water and poured into the soil or a shallow furrow around the base of the tree trunk (the collar area). Timing is often after the fruit harvest (e.g., July to October).

• Foliar Spray: This method is often recommended for vegetable crops or as a supplement for tree flowering.