Gibberellic Acid Effect On Plant Growth

Description

CAS No.: 77-06-5
Molecular Formula: C19H2206
Molecular Weight: 346.4
TC:
90% GA3
80% GA3
Gibberellic acid(GA3) is a very potent hormone whose natural occurrence in plants controls their development. It can help plants overcome dormancy, promote corps germination and premature flowering, promote and speed corps growth, prevent fruit drops, help seedless fruit growth, promote flowering for long day plant in short time. Gibberellic acid can affect safely on stem and root growth of fruits, vegetables and leaf corps

Plants in their normal state produce large amounts of GA3. It is possible to produce the hormone industrially using microorganisms. Gibberellic acid is a simple gibberellin, a pentacyclic diterpene acid promoting growth and elongation of cells. It affects decomposition of plants and helps plants grow if used in small amounts, but eventually plants develop tolerance to it. GA stimulates the cells of germinating seeds to produce mRNA molecules that code for hydrolytic enzymes. Gibberellic acid is a very potent hormone whose natural occurrence in plants controls their development. Since GA regulates growth, applications of very low concentrations can have a profound effect while too much will have the opposite effect. It is usually used in concentrations between 0.01 and 10 mg/L.

Gibberellic acid is sometimes used in laboratory and greenhouse settings to trigger germination in seeds that would otherwise remain dormant. It is also widely used in the grape-growing industry as a hormone to induce the production of larger bunches and bigger grapes, especially Thompson seedless grapes. In the Okanagan and Creston valleys, it is also used as a growth regulator in the cherry industry. It is used on Clementine Mandarin oranges, which may otherwise cross-pollinate with other citrus and produce undesirable seeds. Applied directly on the blossoms as a spray, it allows for Clementines to produce a full crop of seedless fruit.

It can be used to extend the shelf life of flowers and cut greens in floristry. The shelf life of cut shoots of Polygonatum multiflorum ‘Variegatum’ kept in water is about 7 days. To extend their life after cutting, conditioning with gibberellic acid or benzyladenine is used. This doubles their possible use.

GA is widely used in the barley malting industry. A GA solution is sprayed on the barley after the steeping process is completed. This stimulates growth in otherwise partly dormant kernels and produces a uniform and rapid growth.