| abstract |
Novel 2-chloroethanephosphonic acid and 2chloroethanethionophosphonic acid derivatives of the formula WHEREIN X is oxygen or sulfur; and R is aryloxy, optionally substituted with hydroxy, alkyl, halogen, or nitro, or monoarylamino, or monoalkylamino of from 1 to 6 carbon atoms; exhibit marked plant growth influencing properties, e.g. inhibition or stimulation or alteration of plant growth. |