ABSTRACT
Zem an A .M ., Tchan, Y.T., Elm erich, C. and K ennedy, I.R. (1992). N itrogenase activity in w heat seedlings bearing para-nodules induced by 2,4 - dichlorophenoxyacetic acid (2,4D) and inoculated w ith Azospirillum. Res. M icrobiol. 143: 847-855.
