Among agro-industrial preparations, compounds that promote the growth, development and fruiting of crops have gained particular popularity. The use of gibberellic acid when growing various crops allows you to obtain strong, healthy plantings, improve the flowering of plants, activate their growth, and achieve increased productivity on the site.
What it is?
The product belongs to plant hormones; gibberellic acid is a stimulator of crop growth and development. Gibberellins are analogues of plant hormones auxins, first discovered by Japanese scientist T.Yabut in 1935. More than 60 varieties of gibberellins have been isolated; GA 1, 3, 4, 7 have the greatest activity; the smaller ones are GA 6 and 5. The substances are contained in pathogenic fungi of the species Gibbtrella fujikuroi, which gave the name to the isolated substance.
Gibberellic acid is white or yellowish crystals, odorless and tasteless. Slightly soluble in water and most organic solvents, highly soluble in alcohol and acetone.
The product is available in ampoules, additionally packaged in foil bags, in tablets with a concentration of the active substance of 20%, in the form of a concentrated paste of 90%, or in the form of a ready-to-use alcohol solution of 78%, packaged in ampoules of 5 milligrams.
In what cases is it used?
The product is used for various crops, vegetables, berries, and grapes are processed.
The drug is capable of:
- increase the percentage of seed germination;
- preserve the ovary, preventing it from falling off even in unfavorable climatic conditions;
- improve flowering, stimulate fruit development;
- improve the presentation of fruits;
- increase the keeping quality and safety of the crop.
Can be used to treat flowers and ornamental plants. A prerequisite for using the drug is proper care of the plantings, compliance with agrotechnical recommendations for choosing a site for planting, soil composition, watering and fertilizing. The drug is suitable for systematic use and is non-toxic.
Instructions for use of gibberellin
Spraying is carried out on the sheet, using a finely dispersed jet (the formation of droplets is unacceptable). 1 ml of the working solution of the drug is dissolved in 1 liter of distilled water.
It is more convenient to use ampoules with a ready-made alcohol solution of the drug. It's simple to use:
- The ampoule is shaken before opening;
- pour a little distilled water into the container and pour in the contents of the package;
- mix thoroughly, bring the volume of solvent to 4-5 liters;
- mix again.
If the drug is in crystalline form, it is first dissolved in 6-7 milliliters of ethyl alcohol, shaken until a homogeneous solution is obtained, and after the crystals are completely dissolved, the product is added to distilled water.
It is convenient to use a syringe to measure the required doses of a concentrated mother (alcohol) solution. The concentration of the drug should not be exceeded.
There are several types of treatment: soaking seed material (seeds and tubers before planting), spraying plants, dipping inflorescences in a solution of the drug. The above-ground part is processed to increase the green mass or inflorescence, to accelerate the development of fruits. Treatment is carried out in cloudy, windless weather at temperatures from +16 to +25 °C.
When processing grapes, the brushes are dipped in a container with a working solution of the drug or a patch soaked in the product in combination with glucose is attached to the comb. Tomato seedlings are processed 1.5 weeks before planting in a permanent place.
Security measures
The drug is non-toxic and not dangerous when used. Processing should be done with rubber gloves.
Plant care after use
To obtain the effect, plants need: proper watering, loosening and mulching of the soil, timely application of fertilizers. Plants should not suffer from lack of moisture. The phytohormone can be used to treat indoor plants: geranium, begonia. Used for processing garden flowers (most effective for processing bulbous and tuberous varieties).
Compatibility
To increase efficiency, it can be used with theourea (20 mg per liter of water) and other mineral complex fertilizers.
Storage rules
The drug is stored away from medicines and food products, in places inaccessible to children. The aqueous working solution is used within 24 hours after preparation; it is not suitable for long-term storage.
The stock (alcohol) solution of the drug is kept in a tightly closed glass container in a cool place. It can be stored without loss of effectiveness for 6 months.
