Naftalenacético

Naftalenacético, also known as naphthaleneacetic acid or NAA, is a synthetic plant hormone belonging to the auxin family. It is widely used in agriculture and horticulture to regulate plant growth and development. NAA mimics the natural plant hormone indole-3-acetic acid (IAA) but is generally more stable and persistent in plant tissues.

One of the primary applications of naftalenacético is as a rooting hormone. When applied to cuttings or plant tissues, it stimulates the formation of adventitious roots, promoting successful propagation of many plant species. It is also used to thin fruit in orchards, preventing over-fruiting and leading to larger, higher-quality fruits. Additionally, NAA can be used to prevent premature fruit drop, particularly in apples and pears, by delaying the formation of the abscission layer.

The effectiveness of naftalenacético depends on the concentration used, the plant species, and the specific application method. High concentrations can inhibit growth or even be phytotoxic, so careful calibration is essential. It is typically formulated as a powder or liquid for ease of application. Research continues to explore its potential in various aspects of plant physiology and crop management.