美国农业部的科学家已经培育出一种新型小麦。农业部官员声称 ,这种新型小麦将有助于减少小麦赤霉病的扩散。多年来 ,对于沿美国、加拿大边界东北大平原的美国农业来说 ,小麦赤霉病是一个严重问题。 1 991～1 997年期间 ,赤霉病给美国种植小麦的农民造成的损失估计高达 2 6亿美 US Department of Agriculture scientists have bred a new type of wheat. Ministry officials claim the new wheat will help reduce the spread of wheat scab. Over the years, scab has been a serious problem for U.S. agriculture along the northeastern plains of the United States and Canada. From 1996 to 1997, the losses caused by the head blight to peasants planting wheat in the United States were estimated at up to 2.6 billion U.S. dollars