Plant Regulators

T. K. Scott, ed.. Plant Regulation and World Agriculture, Plenum Press, New York, 1979. 

Vaadia, Y. (1987). Salt and drought tolerance in plants regulation of water use efficiency in sensitive and tolerant species. In NATO Conference on Biochemical and Physiological Mechanisms Associated with Environmental Stress Tolerance in Plants, University of East Anglia, Norwich, 2-7 August 1987. 

Universal waste pesticide Pesticide means any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest, or intended for use as a plant regulator, defoliant, or desiccant. 

Meng FJ, Han YZ, Que YM, Wang H (1992) Zearalenone, a key substance controlling plant development. Advances in plant regulation. Kluwer, Dordrecht, pp 291-297 Meng FJ, Han YZ, Fu YF, Guo FL (1996) Zearalenone in higher plants. Flowering Newslett 22 54-57... 

Pesticide. . any substance or mixture of substances intended for preventing, destroying, repelling or mitigating any insects, rodents, nematodes, fungi, or weeds or any other form of life declared to be pests.. . . and any substance or mixture of substances intended for use as a plant regulator, defoliant or desiccant." Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA - 1947) DDT... 

The Pesticide Index (ref. 14) lists the following categories of pesticides acaricides, attractants, chemosterilants, defoliants, fungicides, herbicides, insecticides, molluscicides, nematicides, plant regulators, repellents, and rodenticides. Listings are in alphabetical order with structural and molecular formulae for single chemical entities. Other data include CAS nomenclature and number Wiswesser Line Notation LD-50 and test animal data when available physical appearance and safety information. Also provided are a CAS nomenclature index separate molecular (line) formulae of chemicals identified by their common names a separate section of Wiswesser line notations, also with common names an appendix of manufacturers, and an appendix of recent publications dealing with pesticide names. 

A number of other chemicals are used for the control of crop pests. Presently, only selected chemicals are discussed here. These include synthetic pyrethroids, plant regulators, and a rodenticide. 

Pesticides—Congresses. 2. Agricultural chemistry— Congresses. 3. Insect hormones—Congresses. 4. Plant regulators—Congresses. 

Environmental Protection Agency (EPA) air emissions regulations have led to increased dust controls and to reduced solvent losses in extraction plants. Regulations on the discharge of polluting process streams into public... 

Jung, J. In "Plant Regulation and World Agriculture" Scott. 

SYNS AMEROL AMINOTRIAZOLE 2-AMINOTRIAZOLE 2-AMINO-l,3,4-TRIAZOLE 3-AMINOTRIAZOLE 3-AMINO-s-TRIAZOLE 3-AMINO-1,2,4-TRIAZOLE (ACGIH) 3-AMINO-l,2,4-TRLAZOLE 3-AMINO-lH-l,2,4-TRIAZOLE AMINOTRIAZOLE (PLANT REGULATOR) AMINO TRIAZOLE WEEDKILLER 90 AMINOTRIAZOL-SPRITZPULVER AMITOL AMTRIL AMITRILT.L. 

AMINO-l,2,4-TRIAZOLE (ACGIH) see AMY050 AMINOTRIAZOLE (PLANT REGULATOR) see AMY050... 

Monitor, through the field inspectors, all work to insure conformance to specifications, schedule, safety, and plant regulations. 

Structure-activity data for plant regulators are not very abundant in comparison with similar information on pesticides. This stems partly from the relative novelty of plant regulators and partly from the diflBculty in obtaining biological test data. While research in plant regulation has been active for scores of years, identification of specific regulators— more precisely, plant hormones— has been generated within the past 35-40 yrs. 

The TIBA story highlights at least two major considerations that need more attention in future structure-activity evaluations of plant regulators. 

We must recognize that plants, unlike animals, cannot move about. They are literally stuck with whatever environment they find themselves in. Natural selection over tens of millions of years has therefore resulted in the remarkable adaptability we see in plants today. Their ability to adjust to adverse environmental shifts, however, could also result in internal changes that either work indirectly to counteract a desired plant regulator effect or directly to correct for the elicited response. In either event, the plant regulator effect might then be shortlived. More sophisticated determinations of endogenous biochemical and... 

The environmentally elicited responses within the plant will have to be superimposed on plant regulator studies under controlled conditions if useful structure-activity correlations are to be made. 

Thus the stage of plant development, the timing of chemical treatment, and the environment all require consideration in structure-activity studies. When we superimpose genotypic and phenotypic variations upon this complex of variables, it is apparent that plant regulator research and development is considerably more complex and requires more rigorous and critical evaluation criteria than has been customary in pesticide research. However, attention to such detail should promote discovery of useful chemicals which will play a highly significant role in our future efforts to improve food quality and increase crop productivity. 

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