December wheat opened 12 1/2 cents lower on the session at 782 1/2 and established an early range of 781 to 792. The outlook for some rains in the dry areas of the southern plains next week was enough to spark increased selling and moderately lower trade early in the session today. A jump in the US dollar added to the negative tone. Talk of the overbought technical condition of the market and a lower close yesterday after moving to the highest level since June 14th was also seen as a negative technical development. The plains need a lot more rain to normalize solid conditions but traders see any moisture at all beneficial for planting. Private exporters reported the sale of 102,500 tonnes of US hard red winter wheat to unknown destination.