CBOT农产品期货主力合约收盘全线下跌，小麦期货跌2.31%

Group 1 - The core viewpoint of the article highlights a decline in major agricultural futures contracts at the Chicago Board of Trade (CBOT) on September 30, with all key commodities experiencing price drops [1][2] Group 2 - Soybean futures fell by 0.96%, closing at 1000.75 cents per bushel [1] - Corn futures decreased by 1.30%, ending at 416.00 cents per bushel [1] - Wheat futures saw a decline of 2.31%, closing at 507.50 cents per bushel [1]