SYDNEY: US wheat edged higher on Tuesday, rebounding from an eight-day low touched in the previous session, as the threat of cold weather to U.S. production provided some support. Soybeans edged lower, extending losses into a second straight session, while corn was unchanged. The most active wheat futures on the Chicago Board Of Trade rose 0.1pc to $4.05-1/2 a bushel by 0300 GMT, after closing down 1 percent on Monday and dropping to a low of $4.03 - the lowest since Dec. 8. Unfavourable weather was supportive for prices, analysts said, but the market remained largely unconcerned.