New salts of .alpha.-isocyanocarboxylic acid of the formula ##STR1## wherein R is alkyl or phenyl, R.sup.1 is hydrogen, alkyl or phenylalkyl or R and R.sup.1 together represent an alkylene chain with at least 2 carbon atoms, and R.sup.2 is an alkali metal ion are provided. Such compounds are particularly efficacious in plant growth regulant activity and are more effective than conventional materials such as tri-n-butyl-tri-thiophosphoric acid ester and 2-chloroethanesulphinic acid.
                            提供了公式为##STR1##的.alpha.-异
氰酸羧酸的新盐,其中R是烷基或苯基,R.sup.1是氢,烷基或苯基烷基,或R和R.sup.1一起表示至少有2个碳原子的烷基链,而R.sup.2是碱
金属离子。这些化合物在
植物生长调节剂活性中特别有效,并且比三正丁基三
硫代磷酸酯和2-
氯乙烯磺酸等传统材料更有效。