  Radio emission is a good indicator of the jet power of radio-loud quasars,
while the emission in broad-line can well represent the accretion disc
radiation in quasars. We compile a sample of all sources of which the
broad-line fluxes are available from 1 Jy, S4 and S5 radio source catalogues. A
correlation between radio and broad-line emission for this sample of radio-loud
quasars is presented, which is in favour of a close link between the accretion
processes and the relativistic jets. The BL Lac objects seem to follow the
statistical behaviour of the quasars, but with fainter broad-line emission.
