Plant

Growth

Plant Growth

Plant growth regulators (PGRs), which can be synthesized naturally or in laboratory settings, are applied to plants to serve specific functions. It is important to differentiate that plant hormones produced inherently within the plant do not fall under the classification of plant growth regulators. PGRs are utilized for the regulation and enhancement of natural growth processes to align more effectively with the physiological requirements of the plant.

While plant hormones are not classified as nutrients, they are chemical agents employed in remarkably low concentrations (10−6 to 10−5 mole/L). The major classes of plant hormones are categorized based on their structural similarities and their effects on plant physiology, and there are five principal classes:

  1. Abscisic Acid: Functions as an inhibitory compound that influences bud development and regulates seed and bud dormancy.
  2. Auxins: These compounds promote cell elongation, bud formation, and root initiation.
  3. Cytokinins (CKs): This group of chemicals is pivotal in stimulating cell division and shoot formation, and they also serve to delay the senescence of tissues.
  4. Ethylene: A crucial regulatory hormone involved in the ripening processes of various fruits, including bananas, apples, and pears.
  5. Gibberellins (Gas): Essential for seed germination, gibberellins facilitate enzyme production that mobilizes nutritional resources necessary for the growth of new cells.

Ethiomine

GIBBERELLIC ACID

INDO BEST ( IBA )

FLORASET

TOMASET

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