Ethephon, also known as a plant growth regulator, has gained increasing attention and application in agricultural practices in recent years. It is widely used to regulate plant growth, improve yield, and enhance fruit quality. Here are eight key applications of ethephon that have proven effective in various crops:
**1. Application on Cotton**
In cotton fields, 100–150 ml of ethephon per acre is mixed with 30 kg of water and sprayed about 20 days before the first frost. This practice can increase the number of pre-frost flowers by approximately 70%. Spraying unopened bolls during the ripening stage can also yield excellent results.
**2. Application on Corn**
At the end of the corn growing season, applying 40% ethephon at a rate of 50 ml per acre mixed with 15 kg of water can significantly reduce plant height by about 25 cm. The stem becomes thicker, leading to increased double ear rates, better lodging resistance, reduced tassel tip baldness, and more lateral roots. The tassel neck shortens, and maturity is advanced by 3–5 days.
**3. Application on Persimmon**
A 750–1000 ml/L solution of ethephon is applied after the persimmons reach the yellow ripening stage. Alternatively, the fruit can be soaked in a 2000 ml/L solution for 2–4 days at a temperature of 22–26°C to remove astringency effectively.
**4. Application on Tomato**
During the color-changing stage, tomatoes are immersed in a 2000–4000 ml/L ethephon solution for one minute and then kept at 20–25°C. They will turn red within 2–3 days. If most fruits are nearly mature, spraying the plants with a 1000 ml/L solution helps in centralized harvesting.
**5. Application on Watermelon**
When watermelons reach the fixed growth stage, applying a 200–300 ml/L ethephon solution on the surface using a sponge can advance maturity by 5–7 days. It also increases the soluble solids in the juice by 1–3%, improving sugar content and sweetness.
**6. Application on Cucumber**
Spraying a 200–300 ml/L ethephon solution during the second leaf stage of cucumber, once every other week, can significantly increase the female flower ratio and overall yield.
**7. Application on Zucchini**
Applying a 100–200 ml/L ethephon solution when zucchini has 2–3 leaves can help improve the setting rate of female flowers, enhancing fruit production.
**8. Application on Flowers (e.g., Chrysanthemum)**
Spraying chrysanthemum leaves with a 1000 ml/L ethephon solution can effectively inhibit internode elongation and delay flower bud development, resulting in more compact and attractive blooms.
When applying ethephon, it is crucial to follow the recommended concentrations and avoid over-application or runoff. Proper use ensures maximum benefits while minimizing potential damage to the plants. Always read the label instructions carefully and wear appropriate protective gear when handling this chemical.
Extruded Stips,Pvc Sealing Strip,Window Seal Strip,Door Seal Strip
Wuxi Jierui Changkun New Material Technology Co., Ltd , https://www.plasticstrapsll.com