Wheat futures at the Chicago Board of Trade climbed early on Tuesday as condition ratings for the US winter wheat crop waned, traders said. At 10:10 am CDT (1510 GMT), CBOT wheat was up 4-1/2 to 6-1/2 cents per bushel. May was up 6-1/2 at $3.12 per bushel. July was up 5-3/4 at $3.19-1/4. Goldenberg Hehmeyer bought 400 July, Refco bought 200 July and Rand bought 200 July, pit sources said.