CAS No. 77-06-5 Gibberellic Acid Ga3 90%Tc Plant Growth Regulator

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The most obvious effect of Gibberellic acid (GA3) is to stimulate plant cell elongation, make plants grow taller, and increase leaf size; it breaks seed dormancy and promotes germination.

1. Promote growth, early maturity, and increase yield

Many green leafy vegetables can accelerate growth and increase yield after being treated with gibberellic acid. Celery is sprayed with 30~50mg/kg liquid about half a month after harvesting. The yield will be increased by more than 25%, and the stems and leaves will become enlarged. It can be marketed 5~6 days in the morning. Spinach, shepherd's purse, chrysanthemum, leeks, lettuce, etc. can be sprayed with 1. 5~20 mg/kg liquid to increase yield.

For edible fungi such as mushrooms, when the primordium is formed, soaking the material block with 400mg/kg liquid can promote the enlargement of the fruiting body. For vegetable soybeans and dwarf beans, spraying with 20~500mg/kg liquid can promote early maturity and increase yield. For leeks, when the plant is 10cm high or 3 days after harvesting, spray with 20mg/kg liquid to increase yield by more than 15%.

2. Break dormancy and promote germination

The vegetative organs of potatoes and some vegetable seeds have a dormant period, which affects reproduction. Cut potato pieces should be treated with 5~10mg/kg liquid for 15min, or whole potato pieces should be treated with 5~15mg/kg liquid for 15min. For seeds such as snow peas, cowpeas, and green beans, soaking them in 2.5 mg/kg liquid for 24 hours can promote germination, and the effect is obvious. Using 200 mg/kg gibberellic acid (GA3) to soak the seeds at a high temperature of 30 to 40 degrees for 24 hours before germination can successfully break the dormancy of lettuce seeds. In strawberry greenhouse promoted cultivation and semi-promoted cultivation, after the greenhouse is incubated for 3 days, that is, when more than 30% of the flower buds appear, each plant is sprayed with 5 mL of 5~10 mg/kg gibberellic acid solution. Focus on spraying the heart leaves, which can make the top inflorescence bloom in advance, promote growth and mature earlier.

3. Promote fruit growth

For melon vegetables, spraying the young fruits with 2~3 mg/kg liquid once during the young melon stage can promote the growth of young melons, but do not spray the leaves to avoid an increase in the number of male flowers. For tomatoes, spray flowers with 25~35mg/kg during the flowering stage to promote fruit setting and prevent hollow fruits. Eggplant, 25~35mg/kg during flowering stage, spray once to promote fruit setting and increase yield. For pepper, spray 20~40mg/kg once during flowering period to promote fruit setting and increase yield. For watermelon, spray 20mg/kg once on flowers during the flowering stage to promote fruit setting and increase yield, or spray once on young melons during the young melon stage to promote growth and increase yield.

4. Extend the storage period

For melons, spraying the fruits with 2.5~3.5mg/kg liquid before harvesting can extend the storage time. Spraying banana fruits with 50~60mg/kg liquid before harvesting has certain effect on extending the storage period of fruits. Jujube, longan, etc. can also delay aging and extend the storage period with gibberellic acid (GA3).

5. Change the ratio of male and female flowers to increase seed yield

Using the female line of cucumber for seed production, spraying 50-100 mg/kg solution on the seedlings when they have 2-6 true leaves can turn the female cucumber plants into monoecious plants, complete pollination, and increase seed yield.

6. Promote stem flowering and improve the breeding coefficient of improved varieties

Gibberellic acid can induce early flowering of long-day vegetables. Spraying plants or dripping growing points with 50~500 mg/kg of gibberellic acid (GA3) can make carrots, cabbage, radish, celery, Chinese cabbage and other 2-year sun crops grow.

7. Relieve the harm caused by other hormones

After vegetables are damaged by overdose, treatment with 2.5~5mg/kg solution can relieve the harm of paclobutrazol and chlormequat; treatment with 2mg/kg solution can relieve the harm of ethylene. The harm caused by excessive use of anti-falling agents in tomatoes can be eliminated with 20 mg/kg ggibberellic acid.

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