More than half of Scots would be likely to vote for independence if they believed the Tories would be returned to power in Westminster at the next general election, a new poll has found.

The Panelbase poll for The Sunday Times and Real Radio Scotland found 37% of Scots agreed the country should be independent, with 45% opposed.

When it asked voters what they would do if they felt the 2015 UK general election would result in either a majority Conservative government at Westminster or another Tory-Liberal Democrat coalition, 52% said this would make them likely to vote in favour of Scotland leaving the UK.

Under the same circumstances, 40% of those questioned said they would be unlikely to vote for independence, while 8% said they did not know how they would cast their ballot.

A total of 972 voters north of the border were questioned for the survey, which comes less than a week after Prime Minister David Cameron signed a deal on the independence referendum with Scottish First Minister Alex Salmond.

Mr Salmond launched a fierce attack on Westminster as he addressed the Scottish National Party's annual conference in Perth.

He branded the UK Government an "incompetent bunch of Lord Snootys" as he declared: "Now is the time for Scotland to choose, to seize a different future."

Scots are due to vote on independence in the autumn of 2014, just months before the 2015 general election.

Ivor Knox, managing director of Panelbase, said: "The UK political landscape in 2014 could be a factor, with a Westminster election due only months after the independence vote.

"Among people who are undecided about independence, over 60% say that the prospect of another Tory-led government would make them likely to vote in favour, with only 13% saying they would be unlikely."