General information

Gibberellin: instructions


For quality and high yield is extremely important period of flowering and tying berries. In order to grow a crop in adverse conditions, requires special feeding and care. Gibberellin for grapes is used as an activator of growth that stimulates flowering and prevents the ovary from falling off.

What is gibberellin?

The drug gibberellin is a derivative of the parasitic fungus Fusarium. In 1938, its unique properties were discovered and Gibberellic acid was created - white crystals, soluble in alcohols, acetone, kerosene and insoluble in water.

If you use gibberellin for grapes, then know that it is capable of accumulating in plants and activating cell division and stretching because of what growth occurs. In this case, the drug in the recommended concentration does not affect the root system, but if it exceeds the norm, it can cause irreparable harm.

When the plant passes into the flowering phase, growth hormone prevents the falling of the peduncles and provokes the formation of fruits. In this case, the drug also affects the final size of the berries in a mature state. Gibberellins provide significant assistance in cultures with a long daylight hours, which suffer from a lack of lighting.

The results of the processing of grapes drug

Gibberellin for grapes is used quite often not only at home but also on an industrial scale.

Results and benefits of using a hormone:

  • adverse weather conditions do not affect the formation of berries,
  • peduncles under the influence of the drug attracts nutrients to themselves, which gives more ovary, which does not crumble,
  • clusters retain their presentation for a long time and are suitable for long-term transportation,
  • Many gardeners have noticed an increase in the amount of sugar in the berries,
  • actively developing new shoots of plants, as well as foliage.

The use of gibberellin on grapes shows good results on such cultivars as Rusbol, Rusbol muscat, Zaporozhye, Polinka, Talisman, Tairovsky pink, Radishish Kishmish, Moldovan Kishmish. In these varieties, the effect of increasing the mass of the berries and increasing their juiciness was noticed, especially on the varieties without a stone.

Instructions for use of the drug

Processing grape gibberellin is diluted in water preparation. For seedless varieties of culture, 100-150 mg of gibberellin per 1 l of water is taken, for varieties with a female type of flower less - 25-30 mg per liter. The nuance is that the drug is difficult to dissolve in water, so before processing you need to dilute it with a small amount of 90% alcohol, and only then mix it with water.

Gibberellin for grapes, the instruction to which is attached in the product packaging, is applied as follows:

  1. The first spraying inflorescence solution occurs during flowering. It is carried out by means of a spray.
  2. The second is the same way after the formation of the ovary - after about 8-10 days.
  3. The third - control spraying is carried out even after 10 days. But with a lower dosage of the drug.

Australian technology processing grape gibberellin is that the first spraying is not at the beginning of flowering, but at the end - when the ovary is forming.

The drug gibberellin (instructions for use on grapes which states that the rules may vary depending on the grape variety) must be used in compliance with all safety rules. It is also important to study the characteristics of this type of berry before processing. Also a feature of the hormone is that when processing plants with flowers of both sexes, the result may not be at all.

Gibberellin storage nuances

In order not to lose the beneficial properties of the drug, it is necessary to follow the storage recommendations indicated on the packaging, to avoid direct sunlight and excess moisture.

Water for mixing the preparation is taken purified, with a minimum of harmful impurities. In addition, it is desirable to dissolve gibberellin before each use and not to leave for storage in a bottle. With a long simple solution can deteriorate - flakes are formed at the bottom of the tank, which can clog the spray tube. Also in solution, the drug quickly loses its beneficial properties.

Alternative methods of processing plants

Gibberellin is used for grapes not only by standard spraying from a spray bottle, there are also alternative methods:

  • injections with a 2% solution of the drug in the grape comb (the place where the vine forks and forms a bunch),
  • the imposition of a hormonal adhesive plaster (you can make it yourself, for this you will need to mix 15% gibberellin with 75% caster sugar and apply the composition to the plaster),
  • dipping the bunch in a container with a solution for a few seconds.

Despite the fact that some methods seem unnatural, they give excellent results - the number of berries increases by 2-3 times, weight by 9-10 grams, and size by 1.5 times. Gardeners also note an extremely labor-intensive processing process, compared to traditional spraying.

Disadvantages of the drug

The abundance of advantages does not exclude the presence of deficiencies of the drug. These include the following factors:

  1. The lack of a clear dosage of the substance, as well as expenditure standards - individual grape varieties require different concentrations, and it is completely undesirable to use the drug on some.
  2. It takes a long time to calculate the dosage and prepare the working solution of the substance. However, an incorrect amount of gibberellin can harm the plant.
  3. In addition to spraying the tool should create all the necessary conditions for the growth of berry culture, otherwise the works go down the drain. Therefore, the drug is often used in industrial cultivation or experienced gardeners.
  4. When spraying, use gloves and a face mask to avoid inhaling the vapors of the substance.
  5. It is not a substitute for fertilizers. The substance only provokes growth, while the plants still require additional feeding and good growing conditions.

Despite these difficulties of working with a substance, it is one of the most effective stimulators of the growth of fruit crops. In addition, the drug is non-toxic and harmless to people and animals.

Impact on seeds

This drug has an effect on the growth of Kishmish grapes, which are distinguished by the absence of seeds. However, when trying to grow a culture from gibberellin seeds, it shows good results.

In order to accelerate the germination of seeds, soak them in the preparation solution for 24 hours. Then the seeds are placed in a warm moist place until the first sprouts appear, while gardeners note increased germination.

The effectiveness of gibberellin has also been proven when used on old seeds that are considered unviable.

Compatibility of the drug with other acids

To obtain a good result in a short time gardeners often combine several drugs - growth activators. How to apply gibberellin for grapes in combination with other hormones? The substance can be mixed with preparations based on butyric or naphthalene-acetic acid. With such a combination, not only the growth of shoots and the increase of fruits, but also active root formation increases. It helps to take root just planted plants.

Care culture after processing

Despite the fact that the drug gives impetus to the active growth of the berry crop, we should not forget about the necessary care, which is the key to a good harvest. The traditional set of activities for growing grapes consists of the following:

  • Watering. The plant is considered one of the greatest lovers of water among all the vines. Therefore, in hot weather, watering should be carried out particularly abundantly. An interesting feature is the fact that the greatest need of grapes in moisture during the growth of shoots (in early spring), flowering, the formation and ripening of berries (in summer). At the same time, at least 2 buckets of water 4-5 times a week should pour out under the bush. Better to do it in the evening.
  • Soil mulching is performed to maintain moisture in the root zone in order to avoid drying out and cracking of the soil. For this, mowed grass, hay or straw can be used.
  • Top dressing plays an important role in the development of berry culture. To obtain a guaranteed good harvest, chemical and organic fertilizers are required during the period of active growth and the formation of berries.
  • Timely harvesting prevents the breaking of vines under the weight of bunches.

  • Preparing for winter is performed as follows: the vines are cut to a height of 30-40 cm, then the basal zone is covered with sand, and the cuttings are covered with thick sacking or sheeting. It is important to do so that the plant does not die in winter conditions with an air temperature mark of up to -30 degrees. In the spring it is important to carefully release the vines from the shelters, sand or soil at the same time leveled or removed from the hole.

In addition, experienced gardeners know when to process grape gibberellin. During this period, they recommend abundantly watering the plants in order to compensate for the lack of moisture - thus the drug is better absorbed. Also before using the phytohormone, it is important to remember that gibberellin is a rather insidious substance that does not tolerate errors in dosage.

Gibberellin action

This hormone helps to reduce the percentage of abscission of ovaries, which has a beneficial effect on increasing yields.

With its help, it is possible to actively increase green mass without the risk of reducing the quality of the crop:

  1. In agricultural production, gibberellins are used to speed up and prolong flowering, as well as to increase the size of inflorescences.
  2. In industry, it is used to process crops to extend their shelf life.

The effect on the plant is to stimulate the culture’s own vitality. The effect of the application will be different - it depends on:

  • types of vegetation
  • drug dosage
  • processing time.

The need for complementary foods is determined individually by the gardener or the gardener.

Gibberellins affect plant morphogenesis with auxins

Gibberellin species

To stimulate growth, the following types of gibberellin are used: GK1, GK3, GK4, GK5, GK6. In specialty stores mainly sell mixes.

Especially popular are the drugs of the following brands:

The analogue of this hormone is the drug Gibbersib, which includes several types of gibberellic acids and sodium salts. It is obtained from the microbial culture of Fusarium moniliforme.

"Gibbersib" has a lot of advantages over other drugs. He has a high resistance to disease and bad weather. It does not change the taste and color of the fruits of the plants that they processed. Small doses of "Gibbersib" can regulate the metabolic processes of grapes.

Gibberellin is made in the form of a powder, on the basis of which alcohol essence is created. You can do it yourself. For this you will need:

  • 100 ml 95% alcohol,
  • 1 gram of gibberellic acid powder.
The spectrum of action of gibberellin on plants is very wide.

Store the mixture preferably in a glass container in a cool place. Shelf-life Unlimited. You can make a working mixture from an alcohol solution:

  • 5 ml of gibberellin, diluted in alcohol,
  • 1 liter of clean water.

The mixture should be used immediately because of the long half-life.

Pros and cons of gibberellin

The main positive side of gibberellic acid is high efficiency in combination with safety. It is completely safe for humans, does not accumulate in plants and has a short half-life.

To achieve the desired result, you should use this tool correctly, namely:

  1. Make the right solution.
  2. Choose the best processing method.
  3. To carry out fertilizer in the necessary stage of ripening plants.

Compliance with these points will help increase yields. But the slightest mistake in the dosage or technology of preparation of the solution can turn into a disaster.

Different effects on culture is the disadvantage of this drug, because it complicates working with him.

Due to its high activity, it requires very precise dosage and special methods of preparing the working solution.

Application of gibberellin on grapes

The most responsive to the processing of this drug is grapes. But do not forget that gibberellin for grapes is not a “magic wand” that can replace the sun with the crop or reduce the humidity. He will benefit only if you follow all the rules of cultivation.

Varieties of grapes in which there are no seeds, mainly suffer from a lack of this hormone. This adversely affects the yield. Seed species with active female flowers are prone to pea or ovary fall. The reason for this is the lack of its own hormones, the "greed" of winegrowers and the wrong location of the vines.

These pathologies can be avoided if the vines are treated in time with preparations containing gibberellin. After the spraying procedure, the grona will not be lethargic, but the berries will be small. The amount of the harvest will increase by 2-3 times as a result of processing the culture with gibberellic acid.

In varieties that do not have seeds, growth will be stimulated as well as the development of the entire vegetative mass. It is allowed to use products with gibberellic acid for several years - there will be no negative result.

Grape Processing Rules

Professionals and specialists in this field say that the effectiveness of the drug depends on the following regimens.

The drug gibberellina is dissolved in alcohol, it turns out the mother liquor

On grapes with seeds, gibberrelin preparations are used in this way:

  1. Seven days before the blooming of the inflorescences, the first treatment is done with a mixture, which consists of 10-35 ml of the working solution and 1 liter of water. This will help to extend the combs of the legs in future berries, reduce the density of the brush, besides, the cracking of ripe berries will decrease.
  2. The second time the culture is processed during the flowering period with a mixture consisting of 30-35 mg of the drug and one liter of water.
  3. To consolidate the action, a third treatment is carried out five days after the completion of flowering. The concentration of the mixture should be 30-35 mg / 1l.

For seedless grapes, a different scheme is used:

  1. The first treatment, which contributes to the extraction of the berry stem and the reduction in brush density, is carried out a week before flowering.
  2. After the end of the flowering period (after five days), repeated processing is carried out. It stimulates the growth of fruits and reduces the percentage of fallout.
  3. The latter treatment accelerates the ripening. It is held when the fruit has reached the size of a pea.

Instructions for use gibberellina

The manual on the use of the drug gibberellin discusses several methods for processing different cultures:

Of the edible crops most responsive to gibberellin grapes

  1. A difficult and requiring considerable experience is the method of injection of a two-percent solution GK1 in a comb. Despite the complexity of implementation, this method brings a good result.
  2. The most popular among gardeners is the method of dipping brushes in the solution. It has several advantages:
  • savings during use,
  • independence from weather conditions.

But there are also negative sides. If the brush is on a short comb, it is simply impossible to fully dip it.

  1. Spraying is used by the water lead. But this method is not as economical as dipping. Weather conditions play a big role in its effectiveness, therefore the effect is unstable.
  2. The imposition of a hormonal adhesive plaster - the best method. You can make it yourself. This method is mainly used in large vineyards.


But there are restrictions on the use of this tool. For example, GK preparations should not be used on Isabella grapes and all its derivatives, as well as on wine types. The fact is that these types of culture have their own hormone production massive. As a result of the intersection of internal and external factors, the harvest will be poor.

For flowers

Ghiberellin affects flowers even more specifically, therefore its preparations for grapes in yellow sachets are not suitable for floriculture purposes. Flowers need to process GK3 at least 90% purity. You can buy technically pure gibberellic acid in a specialized flower shop; the package should have “at least 90% HA3”, “GA3 90% (95%, 98%)”, etc. Also technically clean GK3 can be purchased online at the sites,, at the request of gibberellin-ga3. Chinese gibberellins for flowers, by the way, is quite good.

The effect of gibberellin on the growth and flowering of primroses

Далее, гиббереллин эффективен для цветов длинного дня (весенне-летне цветущих, особенно – эфемеров и полуэфемеров), образующих прикорневую розетку листьев и выбрасывающих цветоносы (см. рис справа), а также луковичных и клубневых. В прочих случаях (напр., комнатные цветы – выходцы из тропиков и др. with a slightly pronounced seasonal life cycle) gibberellin, on the contrary, inhibits flowering. In the lengths of gibberellins, incurable chlorosis of the leaves of the lower and middle tiers often begins. And in bulbotone, stimulation of the flowering of gibberellin causes depletion of the storage organs. Based on this, the recommendations for the use of gibberellin for flowers are as follows:

  • Rosettes, "shooting" leafless or slightly leafy peduncles - spraying the generative organs with a solution of 30-75 mg / l at the extension of the arrow and at the beginning of budding.
  • Greenhouse bulbs for distillation for the holidays - spraying a retractable arrow with a solution of 100-200 mg / l. Planting material comes from a special nursery, and after cutting flowers is thrown out completely depleted.

Fruits vegetables

The processing of gibberellin is also useful for certain types of fruit and vegetable plants, see fig. with the table, especially from the economic point of view, greenhouses and storage before consumption. The flowers are sprayed selectively from a hand sprayer before the buds bloom.

Dosages and regimens processing gibberellin fruit and vegetable crops

Gibberellin is undesirable to use for strawberries: the gross harvest is growing, but the berries are shrinking and losing taste. In addition, plants become very sensitive to diseases and pests.

Gibberellin for apple trees as a means of increasing yields and keeping quality of fruits can, with proper agriculture, be cost-effective in the form of the drug Berelin. Apply it 3 times: at the beginning of budding, before the blooming of flowers and after the formation of ovaries.

Surprise for last

Many growers gibberellin enjoys a reputation for unpredictable means. For example, a completely unexpected result was given by using it for Chinese actinidia. Yes, yes, the very ancestor of breeding varieties of kiwi with its unique healing and health properties. This plant of temperate latitudes can be cultivated not only in the Far East, and, it seems, Russian lovers managed to dispel the belief in the unique natural conditions of New Zealand for growing kiwi, see video below.

Gibberellin: essence and basic properties

Gibberellin represents a wide group of phytohormones. It was discovered by Japanese scientists at the beginning of the 20th century as part of a pathogenic fungus like Fusarium. In the natural environment helps the formation of a fertile ovary. The relationship between phytohormone and pollination is traced: there may be no fruit after this process without the action of gibberellin. Non-pollinated gibberelline plants form a small ovary.

The most important component is gibberellic acid, which promotes the active growth of crops and supports their development in the rainy season. Some garden plants during heavy rains do not form enough ovaries. The use of the drug solves the problem by increasing the fertility and quality of the fruits themselves.

The drug does not contain toxins, the hazard class is similar to citric acid.

When flowering and fruiting supports plants. As a result, the inflorescences do not fall off, the fruits ripen faster - the yield increases.

Compatibility of gibberellin solution with other acids

The use of the drug gives an excellent result when combined with the indole-3-butyric acid. This combination increases the fruit of the tomato, multiplies the basic branches. To achieve this effect, process all branches. Despite the greater expense, the harvest will pay back efforts. Indole is non-toxic, strengthens the root system, helps seed germination (including old ones). An identical result is observed when interacting with naphthalene acetic acid.

For grapes

Gibberellin for grapes is widely used as a fertilizer. He pulls shoots in height, forms the ovary, even in the absence of normal conditions for development.

The first processing of grapes by gibberellin takes place during flowering, the second - after a week. After this stage of growth is completed, after 10 days, a third treatment with a gibberellin-based plaster is carried out, combining it with powdered sugar. The percentage is 15/75. The mixture must be applied to a medical plaster, wrapping it around the vine. Sucrose promotes deep penetration of the active substance, accelerating the growth process. During the season it is necessary to carry out 2-3 feeds at a dosage of 0.003 g per 1 m2.

Depending on the climatic conditions, gibberellin is used in two ways:

  1. European - with the appearance of half of the inflorescences to carry out processing, the second time to feed during the ovary,
  2. Japanese-Chinese - make a week before flowering and 7 days after the fall of the color.

According to gardeners, spraying is not as effective as dipping flowers, fertilizer comb, as well as the contact method. The solution can be prepared by dissolving 0.25-0.5 g of Gibberellin in 2-4 liters of water. This is enough to feed 100 m2 of the vineyard. It is necessary to carry out the procedure with full-scale flowering and after it.

Depending on the type of culture, the use of the drug Gibberellin on grapes is made in such a concentration:

  • seedless varieties - 0.01%,
  • with seeds - 0,005%.

The duration of the activity of the suspension is 6-8 hours. It is necessary to fertilize in the evening or in the morning, until the sun has entered the active phase, as the sun's rays can burn the treated bushes. Carry out top dressing in the absence of wind.

For fruits and vegetables

The yield of the treated crops increases, as does the quality of the fruit. The impact is carried out 1-2 times per season before the formation of buds, during the formation of full-fledged, but still green fruits. Make a solution in the calculation of 30 mg of the drug per 1 m2.

Tomato seedlings should be fertilized 10 days before planting it in the soil (40 mg gibberellin is needed per 1 square meter). Make-up is made once per season.

When feeding during flowering, each type of crop has its own dosage of application: