What are anti-gibberellins? Discuss their benefit in plant

production. (2, 4)

1 answer

Anti-gibberellins are a class of plant growth regulators that inhibit the effects of gibberellins, which are another class of plant hormones that promote stem and leaf elongation, seed germination, and flowering. Anti-gibberellins can be synthetic compounds or naturally occurring substances that block or reduce the activity of gibberellins in plants.

The benefit of using anti-gibberellins in plant production is primarily related to their ability to control plant height and promote compact growth. By inhibiting the effects of gibberellins, anti-gibberellins can suppress the elongation of stems and leaves, resulting in shorter and more compact plants. This is particularly useful in horticulture, where compact and bushy plants are often preferred due to their aesthetic appeal or ease of management.

One of the main applications of anti-gibberellins is in the production of ornamental plants, such as bedding plants, potted plants, and cut flowers. By treating these plants with anti-gibberellins, growers can control their height and shape, ensuring that they remain more compact and sturdy. This makes them easier to transport, display, and sell, while also improving their overall appearance.

Anti-gibberellins can also be used to regulate plant height in agricultural crops. In some cereal crops, such as wheat and barley, excessive stem elongation can lead to lodging, where the plants collapse under their own weight. By applying anti-gibberellins, farmers can reduce stem elongation and prevent lodging, ensuring better standability and preventing yield losses.

Furthermore, anti-gibberellins can be used as a tool to control branching and improve fruit production in certain crops. By selectively inhibiting gibberellin activity, the plant's energy can be directed towards lateral bud development and the formation of more branches. This can lead to increased fruit set and yield in crops like grapes, apples, and citrus fruits.

In summary, the use of anti-gibberellins in plant production offers several benefits, including enhanced compactness and aesthetic appeal in ornamental plants, prevention of lodging in cereal crops, and improved branching and fruit production in various crops. By manipulating the activity of gibberellins, growers and farmers can achieve desired plant growth characteristics, ultimately leading to improved crop quality and yield.