Using GIBBERELLIC ACID to manipulate plants.
Chemical Name: 2,4a, 7-trihydroxy-1-methyl-8-methyle negibb-3-ene-1, 10-carboxylic acid-1, 4a-lactone
Gibberellic acid is a naturally occurring plant hormone that regulates plant growth and triggering seed germination.
Gibberellins are used in agriculture for various purposes. GA-3 is sprayed on seedless grapes to increase grape size and yield, and it is used on lemons, blueberries, sweet and tart cherries, artichokes and other crops to increase or decrease fruit set. These effects are highly dependent on concentration and stage of plant growth. For example, 2ppm of GA-3 promotes flowering of dwarf Ipomoea nil (Morning Glory) but 20-200ppm inhibits flowering. A solution of 10ppm applied to pea seedlings nearly doubled shoot length, if applied at 3 days old, but barely affected 9 day old seedlings. GAs are used to speed up tree-breeding programs. GA-3 applied to Chinese cabbage seeds overcomes the need for chilling or long days to trigger flowering. Studies have found an increases in the GA levels in seeds during cold treatment and germination. The germination of old seeds has been improved with the use of GA. GA-3 may trigger dormant seed to germination, in many cases overcoming the need for special or prolonged conditions such as cold treatment. Gibberellic acid is mainly used to improve seed germination, produce bigger plants and flowers and manipulating the gender of flowers.
Depending on how you use gibberellic acid you can generate male flowers on a female plant and use the pollen from the same plant to generate female seeds of itself or to pollinate another female plant. There are also some reports that it will also generate a larger number of female plants. This is generally not documented and requires more research.
There are over 100 different gibberellins and plants that have GAs will have several different types of GAs. Gibberellic acid is present in rice, corn, wheat, barley and many other common plants. Corn contains twelve GAs, rice has fourteen, and wheat and barley contain 5.Onions produce GAs in the roots and it acts as a suppressant, preventing the bulb form swelling until the proper time .GAs control sex differentiation in spinach, hemp, maize and many other plants. GAs control shoot elongation in many plants, and the dwarf forms of some plants are because of GA deficiencies. Developing peach seeds are rich in GA-3 and extracts have been used to induce flowering in short day dichotomous plants.
Gibberellic Acid is extracted from the Gibberella Fujikuroi fungus, it is not manufactured; it's a natural product. Gebberellic Acid is already naturally found in plants and using gibberellic acid will hlep you get better results from your plants.
Improving Seed Germination.
A seed is a dormant embryo that will remain dormant until it has the right external conditions to start the germination stage. Seeds contain certain chemicals that prevent germination until the seed has the correct conditions to germinate, such as the right temperature and humidity. The main inhibitor is abscisic acid, which must be removed from the seed at the same time as the seed releases its germination hormone gibberellic acid. By soaking the seed you already are providing some of the conditions needed to wash away the abscisic acid; even better if you add gibberellic acid to the water to make sure that the seed gets enough gibberellic acid to ensure rapid germination. The faster germination that gibberellic acid provides also means that seeds will spend less time risking mould and rotting. Rapid germination will not only ensure that more seeds will germinate but more will survive.
The gibberellic acid concentration should be in the range of 100-250 PPM soak the seeds in it for 24 hours. In some cases the seedling may grow so quickly that it begins to lean over. If this happens add more soil around the base of plant.
Manipulating the gender of flowers, to induce male flowers a spray of 10 to 200 PPM; female flowers are induced with 200 to 300 PPM and more than 600 PPM will hinder any flowering. For various reasons there has been some significant interest in affecting the gender of some plants. For five consecutive days spray a plant with a 100 ppm gibberellic acid solution. Within two weeks male flowers may appear. Beware! There is much information on the internet about this use of gibberellic acid, but it does require some level of trial and error before becoming a reliable process. Also, the results will likely vary depending on which type of plant you are using it on.
do do do
Indoor Gardener February 2005
Chemical Name: 2,4a, 7-trihydroxy-1-methyl-8-methyle negibb-3-ene-1, 10-carboxylic acid-1, 4a-lactone
Gibberellic acid is a naturally occurring plant hormone that regulates plant growth and triggering seed germination.
Gibberellins are used in agriculture for various purposes. GA-3 is sprayed on seedless grapes to increase grape size and yield, and it is used on lemons, blueberries, sweet and tart cherries, artichokes and other crops to increase or decrease fruit set. These effects are highly dependent on concentration and stage of plant growth. For example, 2ppm of GA-3 promotes flowering of dwarf Ipomoea nil (Morning Glory) but 20-200ppm inhibits flowering. A solution of 10ppm applied to pea seedlings nearly doubled shoot length, if applied at 3 days old, but barely affected 9 day old seedlings. GAs are used to speed up tree-breeding programs. GA-3 applied to Chinese cabbage seeds overcomes the need for chilling or long days to trigger flowering. Studies have found an increases in the GA levels in seeds during cold treatment and germination. The germination of old seeds has been improved with the use of GA. GA-3 may trigger dormant seed to germination, in many cases overcoming the need for special or prolonged conditions such as cold treatment. Gibberellic acid is mainly used to improve seed germination, produce bigger plants and flowers and manipulating the gender of flowers.
Depending on how you use gibberellic acid you can generate male flowers on a female plant and use the pollen from the same plant to generate female seeds of itself or to pollinate another female plant. There are also some reports that it will also generate a larger number of female plants. This is generally not documented and requires more research.
There are over 100 different gibberellins and plants that have GAs will have several different types of GAs. Gibberellic acid is present in rice, corn, wheat, barley and many other common plants. Corn contains twelve GAs, rice has fourteen, and wheat and barley contain 5.Onions produce GAs in the roots and it acts as a suppressant, preventing the bulb form swelling until the proper time .GAs control sex differentiation in spinach, hemp, maize and many other plants. GAs control shoot elongation in many plants, and the dwarf forms of some plants are because of GA deficiencies. Developing peach seeds are rich in GA-3 and extracts have been used to induce flowering in short day dichotomous plants.
Gibberellic Acid is extracted from the Gibberella Fujikuroi fungus, it is not manufactured; it's a natural product. Gebberellic Acid is already naturally found in plants and using gibberellic acid will hlep you get better results from your plants.
Improving Seed Germination.
A seed is a dormant embryo that will remain dormant until it has the right external conditions to start the germination stage. Seeds contain certain chemicals that prevent germination until the seed has the correct conditions to germinate, such as the right temperature and humidity. The main inhibitor is abscisic acid, which must be removed from the seed at the same time as the seed releases its germination hormone gibberellic acid. By soaking the seed you already are providing some of the conditions needed to wash away the abscisic acid; even better if you add gibberellic acid to the water to make sure that the seed gets enough gibberellic acid to ensure rapid germination. The faster germination that gibberellic acid provides also means that seeds will spend less time risking mould and rotting. Rapid germination will not only ensure that more seeds will germinate but more will survive.
The gibberellic acid concentration should be in the range of 100-250 PPM soak the seeds in it for 24 hours. In some cases the seedling may grow so quickly that it begins to lean over. If this happens add more soil around the base of plant.
Manipulating the gender of flowers, to induce male flowers a spray of 10 to 200 PPM; female flowers are induced with 200 to 300 PPM and more than 600 PPM will hinder any flowering. For various reasons there has been some significant interest in affecting the gender of some plants. For five consecutive days spray a plant with a 100 ppm gibberellic acid solution. Within two weeks male flowers may appear. Beware! There is much information on the internet about this use of gibberellic acid, but it does require some level of trial and error before becoming a reliable process. Also, the results will likely vary depending on which type of plant you are using it on.
do do do
Indoor Gardener February 2005