Plant growth agents

This list does not include those pesticides which are either not normally used as pest control agents (plant growth regnlators, defoliants, and desiccants) or are not directly toxic to the pest (attractants and repellents). 

Recently, however, new interest has developed due to their chemotherapeutic and bacteriostatic usefulness in animal husbandry. They also have been patented as herbicides and plant-growth-regulating agents. 

Benzothiazolin-3-ylacetic acid, 4-chloro-2-oxo-as herbicide, 6, 328 as plant growth regulator, 1, 191 Benzothiazolium bromide, 2-methyl-3-propargyl-nucleating agent... 

Piperidinium chloride, I,I-dimethyI-as plant growth regulator, 1, 191 Piperidinium salts antistatic agents, 1, 409 hair conditioning, 1, 408 NMR, 2, 160 Piperidinols polymers, 1, 284... 

The observation that allelcpathic agents affect plant growth and development leads the physiologist to question the modes of action. While we know that diverse secondary plant products exhibit allelopathic activity, it is difficult to understand the mechanism of action of these plant products partly because of ... 

Once we know the chemical nature of the allelopathic agents and their effects on plant growth dynamics, as well as on health and environment, we can apply genetic manipulation and biotechnology to develop toxin-resistant plants and to reduce the toxin levels frcm the donor plants. These approaches serve a dual purpose because they contribute to increased agricultural productivity and help to minimize the potential risks on health and environment. 

There are numerous reports of allelopathy in the literature, but often the identity of the allelochemical(s) is unknown. There are, however, many cases where specific compounds or groups of compounds have been implicated as allelopathic agents. Table 1 summarizes some examples of sources and identities of allelochemicals that directly inhibit plant growth. These secondary compounds have been implicated as a driving force in ecological succession ( 1 ). 

Dimethylhydrazine occurs as 1,2-dimethylhydrazine and 1,1-dimethylhydrazine isomers. Both compounds are clear, colorless liquids (Trochimowicz 1994). 1,1-Dimethylhydrazine is a component of jet and rocket fuels and is also used as an absorbent for acid gas, as a plant-growth control agent, and as a feedstock in chemical syntheses. Although it has been evaluated as a high-energy rocket fuel, commercial use of 1,2-dimethylhydrazine is limited to small quantities, and it is usually considered to be a research chemical (Trochimowicz 1994). 

The orsellinic acid derivative lasiodiplodin 84 and its de-O-methyl congener are found, i.a., in the roots of Arnebia euchroma, a plant which is used in traditional Chinese medicine. These compounds elicit diverse biological responses as inhibitors of prostaglandin biosynthesis, cyctotoxic agents, and plant growth regulators. 

Plant Growth Regulators and Insect Control Agents from Marine Organisms... 

Marine fauna and flora, then, show great promise as a source of leads to new agrochemically useful plant growth regulators or insect control agents. 

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