Biomass, carbohydrate, and leakage conductance in buds of six ornamental tree species subjected to a “false spring” in Northeast China


  • Xiaopei Wang 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Lingquan Meng 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
  • Hongxu Wei 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China



Global warming, Late-spring frost, Post-winter chill, Budburst, Tree physiology


Information is highly scarce about the possible effect of a late spring frost on physiological response of buds in ornamental trees. In this study, spring temperature of Changchun at Northeast China was recorded to identify the characteristics of a false spring by detecting extraordinary warming and sudden freeze in early April of 2017. Buds of six local ornamental tree species were investigated for their dynamics in biomass, non-structural carbohydrates, frost resistance on days of 7, 14, 21, and 28 April 2017. According to a comparison with spring temperature records historically from 2007 to 2016, a false spring was determined. Black pine (Pinus tabuliformis var. mukdensis) had greater bud biomass than apricot (Prunus sibirica L.). Peach (Prunus persica L. var. persica f. rubro-plena Schneid.) reserved greater non-structural carbohydrate content in post-chilling buds than black pine, and apricot and willow (Salix babylonica L.) had greater soluble sugars and starch contents in buds, respectively. Cumulative number of days with temperature below 12°C had a negative relationship with relative conductance in sorbus (Sorbus pohuashanensis [Hance] Hedl.). Chokecherry (Padus virginiana ‘Canada Red’) had greatest bud starch content on 21 April. Overall, a late spring frost imposed interruption on carbohydrate metabolism rather than direct damage on buds of ornamental trees before late April. Advanced warming induced more pronounced negative impact of a false spring than the sudden decline of minimum temperature.

Author Biographies

Xiaopei Wang, 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China

Master student in research group of Urban Forest and Wetland at Key Laboratory of Wetland Ecology and Enviornment of Chinese Academy of Sciences

Lingquan Meng, 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;

research assistant in research group of Urban Forest and Wetland at Key Laboratory of Wetland Ecology and Enviornment of Chinese Academy of Sciences

Hongxu Wei, 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China

Associate researcher in research group of Urban Forest and Wetland at Key Laboratory of Wetland Ecology and Enviornment of Chinese Academy of Sciences


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