In the auxin quick-dip method the lower portion of the cutting is immersed in an auxin solution.
Timing - 3 to 5 seconds.
Concentration - 500 to 10,000 ppm.
Solution type - usually 50% solvent (ethanol). Potassium salts in water.
Effectiveness - most effective and uniform way to treat cuttings. Some cuttings may be sensitive to solvent.
A bundle of softwood cuttings treated with a quick dip auxin solution.
Typical auxin concentrations range between 1,000 and 10,000 ppm and dipping times for less than 5 seconds.
Final treatment solutions are made from dilution of commercial concentrated stock solutions.
Quick dip auxin solutions color-coded with food coloring dye.