What kinds of plant growth regulators are there?

In the planting and production of crops, proper spraying of some plant growth regulators has many effects on its growth and development. And I believe that friends who have experience in planting management are no stranger to plant growth regulators, and even often use gibberellin, auxin and other products. So what kinds of plant growth regulators are there? Let's get to know it.

1. Plant growth promoters

Compounds that can promote plant cell division, differentiation and prolong growth belong to growth promoters, which can promote the growth of plant vegetative organs and the development of reproductive organs. This is the most widely used category of plant growth regulators.

Representative products: gibberellin, naphthylacetic acid, 2meme 4murd, ethephon, compound nitrophenol sodium, etc.

2. Plant growth inhibitors

Plant growth inhibitors mainly inhibit the synthesis of auxin, which can inhibit the biosynthesis of nucleic acid and protein in meristem cells at the tip of stem, so that the cell divides slowly and the plant is short.

Representative products: abscisic acid, cinnamic acid, coumarin, triiodobenzoic acid and so on.

3. Plant growth retarder

Plant growth retarders mainly inhibit gibberellin biosynthesis, inhibit the growth of plant subapical meristems, slow cell elongation, shorten internodes without reducing the number of cells and internodes, and the plant becomes shorter. But it does not affect the formation of leaves and flowers.

Representative products: Dwarf, paclobutrazol, uniconazole, Bijiu, etc.

4. Antistaling agent

The main function of plant antistaling agent is to inhibit the respiration and metabolism of fruits and vegetables, reduce the activity of enzymes, control the expansion of latent diseases, the growth and reproduction of rot-causing bacteria and the accumulation of toxic substances, and keep the quality of fruits and vegetables fresh. It is mainly from the physiological and pathological aspects to maintain the freshness of fruits, vegetables and flowers and prolong the storage time.

Representative products: thiabendazole, prohydantoin, clotrimazole, carbendazim, methyl thiophanate, etc.

5. Drought resistant agent

Drought-resistant agents are chemicals produced by chemical means to inhibit soil water evaporation, promote crop root water absorption or reduce transpiration intensity.

Representative products: currently used in research and production of drought-resistant chemical agents, including chemical covering agent, water-retaining agent and anti-transpiration agent three types.

6. Male germicides

Androcide is mainly used in agricultural cross breeding production, which is used to remove the stamens of the female parent. Male sterility is often used in cross breeding in production practice. However, there are not many varieties with male sterility, which limits the scope of cross breeding. In addition, the method of artificial castration is very troublesome, and the reliability is poor. The birth of androcide has found an effective way for cross breeding and has been paid attention to by breeders.

Representative products: aminosulfonic acid, halogenated fatty acid, zinorine, androxazine, sulfamic acid and so on.

With the development of agricultural technology, the types of plant growth regulators also keep pace with the times, and there is a significant improvement in performance than before. However, with more and more kinds, many farmers are always easy to be fooled by losses in their choice, so we should pay attention to some selection skills and choose the right medicine according to the actual demand.

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Agricultural products you may be interested in: national supply of high-quality plant growth regulators

Phellodendron mandshurica (Thunb.)