Gibberlins help to overcome the dwarfness in genetically dwarf plants.They are categorized under plant growth promoters. They also help in speeding up the malting process in brewing industries.

Effects of Gibberellins:

Elongation of genetically dwarf plants:
Gibberellins are plant hormones that promote stem elongation by stimulating cell division and cell elongation in the stem. This results in the increased growth of genetically dwarf plants, making them taller than they would be without the presence of gibberellins. This effect is particularly important in agricultural practices where increased plant height can lead to higher yields.

Yellowing of leaves:
Gibberellins do not directly cause the yellowing of leaves. Instead, they promote the synthesis of chlorophyll, the green pigment responsible for photosynthesis. However, in certain cases, excessive levels of gibberellins can disrupt the balance of hormones in the plant, leading to abnormalities such as yellowing of leaves.

Promotion of rooting:
Gibberellins play a role in root development by promoting cell division and elongation in the root system. This helps in the establishment of a healthy root system, which is essential for nutrient uptake and overall plant growth. Gibberellins can be used in horticulture to promote rooting in cuttings and improve the success rate of propagation.

Dwarfing of genetically tall plants:
Contrary to popular belief, gibberellins do not directly dwarf genetically tall plants. In fact, gibberellins promote stem elongation and overall growth in plants. However, in certain genetically tall plants, excessive levels of gibberellins can lead to abnormalities in growth and development, resulting in stunted growth or dwarfism. This phenomenon is not as common as the promotion of elongation in dwarf plants.