1-Triacontanol is a novel, endogenous, low-toxicity plant growth regulator that offers numerous benefits for plants. It enhances root absorption capacity, promotes flower bud differentiation, improves fruit set retention, and facilitates fruit enlargement. The application method and concentration must be tailored to specific crops and their growth stages. 1-Triacontanol has demonstrated excellent results on crops such as apples, citrus, lychee, hawthorn, jujube, wheat, corn, peppers, peanuts, and cotton.
① Apple Trees
For apple trees, 1-Triacontanol is most effective when applied during two key growth stages: full bloom and the young fruit stage. Applications during these periods can improve fruit set rate, promote uniform fruit size, enhance sweetness, and improve fruit coloration. A 0.1% soluble concentrate should be diluted 2,000-5,000 times and sprayed once during full bloom and once during the young fruit stage.
② Cotton
For cotton, 1-Triacontanol is typically applied once during full bloom and again within 2-3 weeks after full bloom. Concentration is a critical factor. A 0.1% soluble concentrate or emulsifiable concentrate of 1-Triacontanol, diluted 1,500-2,000 times, is generally sufficient to achieve yield improvement.
③ Wheat
For wheat, 1-Triacontanol should be applied once during the booting stage and once during the flowering stage. A 0.1% aqueous solution or emulsifiable concentrate diluted 1,500-3,000 times is recommended.
Precautions for Using 1-Triacontanol
① Do not mix 1-Triacontanol with acidic pesticides or foliar fertilizers, as this can cause neutralization reactions and render the product ineffective.
② The dilution concentration of 1-Triacontanol must not be too high. As a principle, it is better to use a lower concentration than a higher one, as excessive concentration can cause phytotoxicity.
③ Like other plant growth regulators, 1-Triacontanol must be prepared fresh and used immediately.
④ For fruit trees, the efficacy of 1-Triacontanol can be enhanced by mixing it with a 0.3% urea solution.
