Pronunciation: (sī"tu-kī'nin), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/cytokinin.html on line 73 [key]
any of a class of plant hormones, produced by the roots and traveling upward through the xylem, that promote tissue growth and budding and, on application, retard plant senescence. Cf. kinetin, zeatin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.