Promote female flower differentiation

The melon and vegetable crops are monoecious and dioecious. In the process of differentiation of male and female flowers, in addition to the main factors of gene expression, different hormone levels may affect gender differentiation. When the flower buds are undifferentiated, the ethephon treatment can significantly increase the number of female flowers. Generally, 150 mg/L ethephon is sprayed on the foliage when the cucumber is 1 to 5 leaves, the pumpkin is 1 to 4 leaves, and the melon is 2 leaves. 3 times. When cucumber 1 to 3 leaves, spray 50 ~ 250 mg / liter of ethephon 1 to 3 times, can play a role in killing the male, mostly used in the field production of cucumber.

Ripening grapes

Tests have shown that when the fruit is mature, the seeds are sprayed or dipped in 250-300 mg/kg ethephon on the ear, which can be matured 6-8 days earlier and can be eaten on the fifth day after spraying.

Pay attention to the use of ethephon to ripen grapes:

1. The concentration should be suitable. If the concentration is too low, the effect is not obvious. When the concentration is higher than 500 mg/kg, it is easy to cause fruit drop.

2. The treatment time is the optimum period when the fruit begins to mature, that is, the colored varieties begin to color, and the white varieties have the best yellowing effect when the fruit is slightly yellowed.

3. The optimum concentration of different varieties of ripening is different, the production should be tested to find the best treatment concentration and method.

4. Since ethephon promotes the formation of the separation layer, the use of ethephon alone causes the fruit to fall off, making the grape ear not resistant to storage and transportation. In order to alleviate this side effect, 10 can be added when using ethephon. -20 mg / kg of indole acetic acid or 10-15 mg / kg of 2,4,5-T, has a good effect of preventing fruit falling off.

Promote plant dwarfing

Spraying 240-960 mg/L of ethephon in 1 to 4 leaves of cabbage, celery, carrot, radish, eggplant, tomato, pumpkin, etc., will slow the growth of the plant and then stop growing. 

Breaking plant dormancy

Ethephon has the function of breaking dormancy and promoting germination. For example, soaking seeds with 50-200 mg/L of ethephon can increase the number of buds, and can process ginger to promote its germination and branching.

Corn control

Brassinolide + DA-6 + ethephon, the preparation is 30% and 40% water, diluted 1500 times, the amount of 20-30ml is used, and used in 6-8 leaves of corn. It is a corn growth control plant growth regulator that has been popular in recent years and is now the best plant growth regulator for controlling corn plant height.

Zhengzhou Delong Chemical CO., Ltd. is the production base of plant growth regulators in China, which established in 2009, specializing in offering plant protection products. If you have any question, contact us any time.