The various phenoxyacetic acids, cyclized derivatives, and phenyl esters were tested for plant growth regulating activity. Snap beans, grown under field conditions, were used as the test plant. Approximately 40 mg. of a solution of 1% of the compound in lanolin was applied to the pulvinus of the primary leaves when the first trifoliate leaves were expanding. Each of the compounds was applied to two plants, and the treated plants were observed over a ...
