The Queensland Nationals are pushing ahead with a vote on forming a new conservative party, despite the Liberal Party postponing its own convention on the issue this weekend.

Lawrence Springborg has told a convention of party delegates in Brisbane that he would be the last Nationals leader in Queensland.

He said he hoped to secure formal support for a new party, which he would lead, by the end of the weekend.

Mr Springborg also endorsed Liberal leader Mark McArdle, who attended the convention, as his new deputy.

The Liberal Party's state council on Thursday night postponed a weekend vote on a merger with the Nationals over concerns about a proposed new constitution.

"There is an extraordinary expectation in the electorate that the new party will go ahead," Mr Springborg said.

"What we saw last night (at the Liberal Party meeting) ... is not the end.

"It is just the beginning of a new era in Queensland."

Mr McArdle will meet with his seven Liberal MP colleagues on Friday afternoon to discuss the future and is considering legal action over the state council's decision.

"We have sent a message to Queenslanders that the Liberal Party simply cannot get its act together with the National party to form a cohesive force," Mr McArdle told ABC radio.

He declined to say whether he would be Liberal party leader at the end of the day.

He also called on Liberal members to ignore the state council and attend this weekend's convention.

"I'm concerned that the membership has been denied the right to vote on the weekend on the most important issue that's faced this party for many years," Mr McArdle said.

"I'm saying to our members right across the state, we believe state council clearly got it wrong, they have taken from you the right to make a determination - come along and show your support for the merger."

Mr McArdle is locked in an open dispute with Liberal state president Mal Brough and his federal counterpart Alan Stockdale, who will not support the merger unless a Liberal is appointed president of the new Liberal National Party.

Mr Brough said that under the current proposed constitution the new party would be set adrift from the federal Liberal Party.

"It has been made very clear to us that the federal president and the other state presidents, who we are required to get their OK, will not (support the current plan)," Mr Brough said.

"We would become the pineapple party and we would no longer be a division of the federal Liberal Party - that was what was at stake."

Mr Brough and Mr Stockdale have called a media conference for 1pm (AEST).

Federal Nationals leader Warren Truss said voters wanted a united conservative force in Queensland to defeat the Bligh Labor government.

"What we're trying to do this weekend is an important part of winning the community's confidence that we can be a credible alternative," he said.

"Labor's plenty bad enough to be thrown out - we just have to be good enough to be elected."

Meanwhile, Queensland Premier Anna Bligh has ruled out calling an early election to capitalise on bitter divisions in the Liberal Party.

Ms Bligh said the dispute would not prompt her to call an early election.

"I don't see any grounds for an early election," Ms Bligh told reporters.

"I was elected, along with my team, to deliver some very important projects and new programs for Queenslanders.

"I am going to deliver those projects and those programs and the next election will be held in 2009."

She said it would be up to Queensland votes to judge the actions of the Liberal party.

"Once again they are in disarray, it's a farce," she said.

"I think it's important for people to ask themselves - what would it be like if these people were in government?"