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Plant Growth Regulators

3-Indolebutyric Acid

Plant growth regulator.Indole butyric acid (IBA) is a broad spectrum indole-class plant growth regulators and is a good rooting agent. It can promote the cuttings and rooting of herbaceous and woody ornamental plant. It can also be applied to the fruit setting of fruit as well as improving the fruit setting rate.


Plant hormone; natural steroid containing a seven-membered B-ring lactone, that promotes both cell elongation and cell devision. Over ten brossinosteroids have been isolated and characterized from sources such as pollen, seedling, leaf. Used as plant growth regulator.

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1-Naphthaleneacetic Acid

Herbicide.Plant growth regulator: An agent for thinning fruit sets in apples, pears, olives and some citrus. Induces root formation on cuttings and transplants. Inhibits fruit drops. Not currently registered in EU countries (pending). Registered for use in the U.S. and Canada.


Plant growth regulator.1. Paclobutrazol belongs to azole plant growth regulators, being the biosynthetic inhibitors of the endogenous gibberellin. It has effects of hindering plant growth and shortening the pitch. For example, being used in rice can improve the activity of indole acetic acid oxidase, reduce the level of endogenous IAA in rice seedlings, significantly control the growth rate of the top of the rice seedlings, promote leaf, make the leaves dark green, the root system developed, reduce the lodging and increase the production amount. The general control rate is up to 30%; leaf promotion rate is 50% to 100%, and the production increase rate is 35%. Being used in peach, pear, citrus, apples and other fruit trees can be used to shorten the tree. Geranium, poinsettia and some ornamental shrubs, when treated with paclobutrazol, have their plant type be adjusted, giving higher ornamental value. Cultivation of greenhouse vegetables such as tomatoes and rape gives a strong seedling effect. 2. Cultivation of late rice can strengthen the seedling, during the one-leaf/one-heart stage, dry out the seedling water in the field and apply 100~300mg/L of PPA solution for uniform spraying in 15kg/100m2. Control the excessive growth of the machine transplanting rice seedlings. Apply 150 kg of 100 mg/L paclobutrazol solution for soaking 100kg of rice seeds for 36h. Apply germination and sowing with a 35d seedling age and controlling the seedling height not higher than 25cm. When used for the branch control and fruit protection of the fruit tree, it should be usually performed in late autumn or spring with each fruit tree subjecting to injection of 500 mL of 300mg/L paclobutrazol drug solution, or subjecting to uniform irrigation along the 5~10cm place of the soil surface around the 1/2 crown radius. Apply 15% wettability powder 98g/100m2 or so. Apply the 100 m2 paclobutrazol with an active ingredient of 1.2~1.8 g/100m2, being able to shorten the base intersection of the winter wheat and strengthen the stem. 3. Paclobutrazol also has effect against the rice blast, cotton red rot, cereal smut, wheat and the rust of other crops as well as powdery mildew, etc. It can also used for fruit preservatives. In addition, within a certain amount, it also has inhibitory effect against some single, dicotyledonous weeds. 4. Paclobutrazol is a novel plant growth regulator, being able to inhibit the formation of gibberellin derivatives, reducing the plant cell division and elongation. It can be easily absorbed by roots, stems and leaves and conducted through the xylem of the plant with bactericidal effect. It has extensive activity on the Gramineae plants, being able to make the plant stems become short stalks, reduce the lodging and increase the yield. 5. It is a novel, high efficiency, low toxicity plant growth regulator with broad-spectrum bactericidal effect. 6. Fixed consumption amount of raw materials: Pinacolone: 930kg/t, 1,2,4-triazole 540kg/t, chlorobenzyl chloride 960kg/t.

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2,4-Dichlorophenoxyacetic acid

Herbicide. Used to increase latex output of old rubber trees.2,4-Dichlorophenoxyacetic acid is often formulated as various forms of inorganic salts or esters. 2,4-D was first registered as a herbicide in 1948, and its annual production was estimated at 52–67 million lb in 1990. The primary use of 2,4-D is for control of broadleaf weeds, and as such, it is used for a large spectrum of applications in agriculture, forestry, and lawn care. 2,4-D also is used along right-ofways, on rangelands, parks, and in aquatic environments.2,4-D is one of the most widely used herbicides. It is a chlorine-substituted phenoxyacetic acid herbicide used for postemergence control of annual and perennial broad-leaved weeds in fruits, vegetables, turfs and ornamentals.Exposure to this chemical may arisein the garden, farm, or plantation setting,where it is sprayed for weed control andto enhance the plant growth. Its residueshave been detected in soils, sediments, andgroundwater, as well as in tissues of corals(Crockett et al. 1986; Glynn et al. 1984).

Indole-3-Acetic Acid

Herbicide.Indoleacetic acid (IAA), synthesized in the plant shoot tips, is a naturally occurring auxin. It is a plant growth promoter. Used as a plant growth regulator, it can promote cell division, accelerate root formation, increase fruit setting and prevent fruit drop; indole acetic acid (IAA) is a broad-spectrum plant growth regulator with auxin activity in indoles; Regulates cell membrane electron channels and proton channels


2-Chloroethyl)phosphonic acid (Ethephon) is the most widely used plant growth regulator. Ethephon is often used on wheat, coffee, tobacco, cotton, and rice in order to help the plant's fruit reach maturity more quickly. The toxicity of Ethephon is actually very low, and any Ethephon used on the plant is converted very quickly to ethylene.

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Forchlorfenuronis is a diphenylurea-derivative cytokinin. Forchlorfenuronis is used as a plant growth regulator (PGR). Forchlorfenuronis is commonly used in horticulture to stimulate the growth of kiwi fruit and grapes.

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Trifluoromethanesulfonic Anhydride

As an intermediate, it is widely used in the pharmaceutical industry, proteins, glycosides, vitamins, etc., Friedel-Crafts benzylation and cyclohexylation catalysts. 2. Used in the plastic industry to catalyze chemical synthesis reactions as an oligomerization catalyst and silicone rubber modification. 3. The electronic chemical industry is used in the production of electronic conductive polymers. 4. The fuel industry is used as a catalyst for protonation reactions. 5. Synthetic weeding and growth regulators in agrochemical industry. 6. Used in sugar industry. 7. Laboratory research is used for special reactions; Trifluoromethanesulfonic anhydride is widely used in the synthesis of alkyl and vinyl trifluoromethanesulfonates. In chemical and pharmaceutical synthesis, catalysis is applied to trifluoroanhydride, acid and ester.


Plant growth regulator.To augment growth of microbial cultures:BE 632589 (1963 to Hoechst). Mainly used for plant hormones and cytokinins. A cytokinin plant growth regulator; used as a biochemical reagent and biological hormone

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Plant growth regulators are used in agricultural production by artificially synthesizing substances with similar physiological and biological effects as plant hormones after understanding the structure and mechanism of natural plant hormones to effectively regulate the growth process of crops and achieve stable production The purpose is to increase production, improve quality and enhance crop resistance. "Plant Growth Regulators" on ECHEMI mainly supplies chemicals for plant growth regulators.
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