Isolation of Abscisin, an Abscission Accelerating Substance

Science  11 Aug 1961:
Vol. 134, Issue 3476, pp. 384-385
DOI: 10.1126/science.134.3476.384


A crystalline substance, designated abscisin, which accelerates abscission of excised debladed petioles at 10-2 microgram per abscission zone, has been isolated from cotton burs. The yield was approximately 1 milligram from 10 kilograms of dry plant material.