关键词: 小麦, 小麦, 日照时数, 积温, 降水量, 气象灾害, 淮北地区

Abstract: Taking this year’s branchs of the yanguang, shuguang and huaguang nectarina as material, Exploring different low-temperature treatment time with GA concentration on promoting early germination of nectarine. The results showed that: the germination rate of the shuguang, huaguang and yanguang nectarine’s branches at the continuous 400-hour-low-temperature treatment and the GA concentration 100mg/L was significantly higher than that of other treatments, the germination rate has reached 90 percent. the germination rate of the shuguang and yanguang nectarine’s branches at the continuous 400-hour-low-temperature treatment and the GA concentration 200mg/l or at the continuous 400-hour-low-temperature treatment and the GA concentration 50mg/l has reached 80 percent above; the germination rate of the huaguang nectarine’s branches at the continuous 500-hour-low-temperature treatment and the GA concentration 100mg/l was very high and the germination rate has reached 87.8 percent.