水稻冷害是水稻遭受了低于生育适温的零上低温,影响水稻生育延迟,甚至造成生理障碍而导致水稻减产的一种灾害。 低温冷害是我国主要气象灾害之一。内地各省区远在五十年代就已开展研究,如东北地区的冷夏,两广地区的“寒露风”,江浙一带在秋分前后的低温,已研究得较深,并取得了一定的成果。近几年来,世界气侯 Chilling injury of rice is a kind of disaster that rice suffers from low and moderate temperature lower than the growth temperature of maternity and affects the delayed growth of rice and even causes the physiological obstacle which leads to the decrease of rice yield. Chilling injury is one of the major meteorological disasters in our country. The research on the cold summer in northeast China, the “cold dew wind” in Guangdong and Guangxi and the low temperature around Jiangsu and Zhejiang provinces around autumn equinox have been studied deeply and some achievements have been made. In recent years, the world climate