Gibberellin is a collective designation for various plant growth hormones that are natural stimulants of their development. These are complex compounds that belong to biochemistry products and are used where viticulture is put on a production basis. However, today any private owner who has his own vineyard can use these regulators of plant development and growth.

These are natural natural phytohormones contained in the ovary and flowers. Today science has learned to extract it microbiologically, isolating gibberella from the fungus.

general information

Gibberellin for grapes is used to reduce the percentage of ovary shedding. Accordingly, its use increases the yield. The hormone also increases the shelf life of grapes and increases the size of the inflorescences. Thus, this drug is good for both private and industrial use.

Gibberellin

It is not recommended to process bisexual varieties with gibberellin, if they are well pollinated without outside interference, the effect will be negative for them.

Important! Seedless varieties respond very well to drug treatment. A positive effect is obtained by processing carried out on varieties prone to shedding and peeling. For example, such as the varieties Strashensky and Kodryanka.

In specialized stores you can find many different types of gibberellins, because there are more than 130 of them. There are a dozen of grape hormones alone, including in the form of mixtures. Usually, such drugs have a special marking - GK1, GK3, GK4, etc. But most gardeners know these brands:

  • Gibberross;
  • "Pollen";
  • "Bud";
  • "Ovary".

The interested winegrower can also find Gibbersib, a preparation in which several gibberellic acids and sodium salts are combined. Processing grapes with this particular gibberellin is good because the drug is resistant to the vagaries of the weather, while the taste of the fruits and their appearance does not deteriorate.

Gibberellin

The use of the drug improves metabolic processes in the plant's body and generally improves its health. The drug is a powder that dissolves and is used in the form of an alcohol solution.

The drug is not toxic - the toxicity is comparable to that of a substance such as citric acid. It is the non-toxicity, safety of the drug, along with its effectiveness, that is the reason for the popularity of its use in private viticulture.

Gibberellin: instructions for use on grapes

Topaz instructions for use for grapes

Usually, for a solution, take 100 ml of alcohol per 1 g of dry matter of gibberellin.

The alcoholic solution can be poured into glass for storage; it can be stored in glass containers for an unlimited time. However, if you bring the working mixture (5 ml of alcohol solution is added per liter of water), then you should not store the finished solution for a long time, since it quickly decomposes.

Grape bunch processing

Those who use gibbersib use the instructions for use for grapes. Usually you have to process three times per season:

  • the first time spraying is done a week before flowering;
  • re-processing is carried out at the moment when flowering reaches its peak;
  • the third spraying is carried out five days after the end of flowering, it helps to increase seedlessness, which is especially important for grapes such as raisins.

If you process the grapes by spraying, which is more familiar to gardeners, then there is a risk of overspending of the drug. The dependence on weather conditions is also great. There are other ways to work with the drug:

  • injections are the most effective method used by experienced gardeners;
  • the imposition of a special adhesive plaster - such a grape patch can be made independently;
  • dipping brushes is a simple, very economical method, but not always possible if the brush stem is short.

Important! The plant needs up to 6 hours to fully assimilate the drug. If it rains after the treatment, the spraying should be repeated. You can use the drug for no more than two years in a row, then the plant needs rest for a year.

If the advantages of the drug include efficiency, then the disadvantages include the lack of an accurate dosage and consumption rate, the manual for the use of such precise data does not contain. The downside is that processing is not carried out at the stage of flowering of the plant.

Gibberellin can be used in combination with other hormonal drugs, and it is good to combine the treatment with brassinosteroids on the leaf.

Grape care

Acceptable drug interactions

Ridomil Gold MC: instructions for use for grapes

There are several growth hormones. So, gibberellin can be used simultaneously with hormones based on indole-butyric acid, naphthalene-acetic acid. This neighborhood will improve root formation in the plant. In addition to the roots, stimulation occurs in the growth of other parts of the grapes. There are researchers who claim that the combination of this drug and indolylbutyric acid also improves plant development.

Thus, the use of the gibberellin preparation can be recommended both to private owners and to those who are engaged in industrial viticulture. When used correctly, it gives a pronounced effect, it is quite safe and environmentally friendly, because it is produced from natural raw materials.