South Australia 6 for 107 (Manenti 33*, Neilsen 32*, Bartlett 3-20, Bazley 2-23) Queensland
Manenti is 33 not out after launching an impressive counter-attack, while Nielsen has faced 101 balls for his 32 and is yet to hit a boundary.
It was all the Bulls early as seamers Bartlett and James Bazley had the hosts under pressure for the entire first session. Bartlett was close to unplayable, with figures of 3 for 20 overs from 12.5 overs when rain ended the day, while Bazley collected two scalps.
Opener Jake Weatherald was the only South Australian batter to reach double figures before lunch, with Daniel Drew and Nathan McSweeney both out for ducks.
Queensland are second on the Shield ladder with two wins, a loss and a draw, while SA are bottom after two losses and two draws.
The Bulls made several changes, with Marnus Labuschagne, Matt Renshaw, Mark Steketee, Michael Neser and captain Usman Khawaja all unavailable because of Australia and Prime Minister's XI commitments.
Wicketkeeper Jimmy Peirson is captaining Queensland, while Bryce Street, Sam Heazlett and Max Bryant returned. Henry Hunt was out of the SA line-up because of his selection in the Prime Minister's XI squad, with Jake Lehmann handed the captaincy duties.