Gibberella, a fungal genus) growth hormones that accelerate shoot growth. First discovered in the fungus Gibberella fujikuroi, and later in other plants.
Plant growth regulators responsible for cell elongation.
a series of substances resembling gibberellic acid both in biological properties and possessing a gibbane ring skeleton. Gibberellins have a broad spectrum of biological activity ranging from promotion of stem extension in intact plants, parthenocarpic fruit growth, flower initiation in long day plants and reversal of genetic dwarfism to the breaking of dormancy in seeds and plant organs.
A group of 50-odd plant hormones involved in stimulating plant growth, breaking dormancy, and affecting fruit set and morphology.
GIB-ah-REL-inz A class of plant hormones that promote cell elongation and division in seeds, roots, shoots, and young leaves. 577
(GA) - A group of substances affecting plant growth, believed to act as natural growth hormones.
A group of hormones that stimulate cell division and elongation in plants. Gibberellic acid (GA), the first of this class to be discovered, causes bolting (extreme elongation) of stems. GA is also applied to certain plants to promote larger fruits.