canberra nov 22 reuters  us wheat futures rose 1 on monday as concerns over tight global supplies pushed prices to a near nineyear high  the most active wheat futures on the chicago board of trade were up 1 at 843 a bushel as of 0229 gmt near the session high of 84534 a bushel  the highest since december 2012 wheat closed 17 higher on friday  the most active soybean futures were flat at 126234 a bushel having closed 09 lower on friday  the most active corn futures were steady at 571 a bushel having closed 04 lower in the previous session  the international grains council last week cut its forecast for 202122 global wheat production underscoring concern about dwindling stocks  heavy rains in australia have added to supply worries by threatening to damage what has been forecast as a bumper harvest that would help replenish export availability  the safehaven us dollar traded close to a 16month high to the euro on monday on growing anxiety over the impact of surging covid19 infections in europe with austria reimposing a full lockdown and germany considering following suit  crude oil fell to sevenweek lows on monday extending declines after the previous sessions slide on concerns about excess supply after japan said it was weighing releasing oil reserves and over demand from a worsening covid19 situation in europe  asian stocks made a soft start to the week on monday while oil and the euro were under pressure as the return of covid19 restrictions in europe and talk about hastened tapering from the us federal reserve put investors on guard