A Strong Cooling Process in 2014: Effect on Freeze Injury of Apricots and Countermeasures

doi:10.11924/j.issn.1000-6850.casb15040194

Abstract

Abstract: A serious frost damage occurred in the apricot planting region in Zhangjiakou Area from May 3 to 5, 2014. By using the real-time MICAPS data and ground observations, the analysis for this weather process in weather cause, early climate background and forecast experience index was conducted. It was found that the strong high and low altitudes cold-air advection provided the basic advection temperature drop conditions for the frost damage; the continuous cold advection functions and rapidly developed northeast low pressure which was stably maintained in the north of Zhangjiakou was one of the key links for the long low temperature lasting time in this frost damage; a rainfall prior to the frost event was the main reason for the serious freeze injury of apricots. The accurate weather forecasts is an important foundation for the freeze injury defense for apricots and the frost forecast experience index can be a theoretical reference for preventing apricot freeze injury.

Key words: Apricot, Cold damage, Defense;Frost forecast experience index

Duan Wenyu, Sun Yuefei, Ma Guang, Liu Xingyan, Zhao Bin, Wang Xinning, Sun Xiaoxia and Gu Runxiang. A Strong Cooling Process in 2014: Effect on Freeze Injury of Apricots and Countermeasures[J]. Chinese Agricultural Science Bulletin, 2017, 33(19): 110-115.

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