论文部分内容阅读
冻害是小麦的主要气象灾害之一。我县近几年早春曾遇到了寒流、冰冻等低温天气影响,小麦遭受不同程度的冻害,特别是2007年受害较重。受害小麦一般减产10%～30%,重者达50%以上。1受冻植株表现症状①叶片受
Frost damage is one of the major weather disasters in wheat. In recent years, my county has encountered cold spell in early spring and has cold weather such as freezing. The wheat suffers different degrees of frost damage, especially in 2007. Victims of wheat generally cut 10% to 30%, severe cases of more than 50%. 1 cold-tolerant plant symptoms ① leaf by