Plant growth regulators are natural organic compounds that are synthesized or extracted from microorganisms and have similar growth and development regulating effects as natural plant hormones. Plant growth regulators are widely used in tissue culture and seed preservation due to their low price, complete variety, and stable effect. They are especially quickly applied to conventional cultivation, making a significant contribution to achieving high yields in modern agriculture and improving commerciality. At present, there are many types of plant growth regulators. Before choosing, you should have a simple understanding of their types so that you can buy suitable products. Let’s take you to understand different plant growth regulators.
- Classification by applicable crops
a. Flowers and plants
Plant growth regulators are widely used in home gardening, and can often maintain good plant shape, increase yield and flowering, etc. This type of plant growth regulator is highly versatile and can be applied to various flowers and plants.
b. Vegetables and fruits
Plant growth regulators can promote the growth of vegetables, melons, fruits and other crops, improve quality, increase yield, make the color brighter, and make the leaves thicker. It can make fruits and vegetables contain more sugar, be larger, have higher yields, and be more resistant to storage. This plant growth regulator is safer and more professional.
c. Cash crops
Cash crops generally use plant growth regulators during their growth to regulate crop growth, increase yields, improve crop resistance to drought, flooding, and disease, and reduce the occurrence of root rot and leaf spot. This plant growth regulator has better effects and is more targeted. Different crops should use different plant growth regulators.
- Classification by properties
a. Solid
Solid plant growth regulators are mostly capsules and tablets, which can be used after being dissolved in water, but the stability of the diluted solution becomes worse. If it is left for too long, the effect will be reduced. Therefore, the diluted solution should be used up at one time. Solid plant growth regulators are also easy to store.
b. Liquid
Liquid plant growth regulators are mostly used in home gardening. They have the characteristics of good effect and convenient use. This type of liquid plant growth regulator generally has a high concentration and can work with a small dose. It is usually diluted with water before use.
c. Powder
This type of plant growth regulator is a powder preparation made by mechanically crushing and mixing the original powder and filler. The finer the powder particles, the easier it is to attach to the plant. The powder is simple to process, low cost, cheap, and easy to use. It is suitable for arid and water-scarce areas. When acting on plants, it is absorbed faster and takes effect faster.
- Classification by efficacy
a. Rooting
Plant growth regulators with rooting effects have the function of maintaining the apical dominance of plants in the plant body, inducing the transport of assimilated products to the product, and promoting plant rooting. It is mainly suitable for use in the seedling, seedling, transplanting, and planting stages of economic crops such as fruits, vegetables, cotton, seedlings, flowers, and medicinal materials. It has a unique effect and high cost performance.
b. Dwarfing
Regulators with dwarfing effects are quaternary ammonium salt plant growth regulators, which are specifically used for overly tall plants, such as common flowers such as roses and longevity flowers. Their function is to reasonably dwarf the roots and stems of plants to prevent the plants from growing too long.
c. Ripening
Plant growth regulators with the effect of promoting maturity enter the plant body through the leaves, bark, fruits or seeds of the plant, and then conduct to the active parts, which can induce flowering, control the sexual differentiation of flower organs, ripen fruits, promote aging and shedding.
Precautions for using plant growth regulators
When using plant growth regulators, they must be applied strictly according to the concentration and application time required by the instructions. The solution prepared with water should be used immediately and not mixed with other substances to avoid ineffectiveness. Wear protective clothing and gloves when using to avoid inhaling the solution. Do not eat, smoke or drink water during the application of the medicine. Wash your hands and face in time after applying the medicine. Do not discard waste packaging casually, but burn or bury it deeply.
