Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (34): 35-40.doi: 10.11924/j.issn.1000-6850.2014-1073

Special Issue: 园艺

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Effect of Foliar Spray Treatment with Growth Regulator on Sugarbeet Paper-tube Seedlings Under Cold Stress

Liu Na1,2,3, Song Baiquan1,2,3, Yang Ji1,2,3, Yu Lihua1,2,3   

  1. (1Key Laboratory of Sugar Beet Genetic Breeding/Heilongjiang University, Harbin 150080;
    2Sugar Beet Research Institute Chinese Academy of Agricultural Sciences/
    Crop Academy of Heilongjiang University, Harbin 150080;
    3Key Laboratory of North Sugar Crop Resource and Utilization, Chinese Academy of Agricultural Sciences, Harbin 150080)
  • Received:2014-04-15 Revised:2014-12-10 Accepted:2014-10-17 Online:2015-03-10 Published:2015-03-10

Abstract: To explore the effect of spraying S- ABA and brassinolide treatment on the cold resistance of sugarbeet, leaves were sprayed with S- ABA and brassinolide (BR) on paper- tube seedlings, plants were treated under 5℃at night, relative electric conductivity (REC), malondialdehyde (MDA), chlorophyl and the soluble sugar content were studied. The results showed that S-ABA and BR treatment delayed the increase of REC, MDA content and the soluble sugar content, and increased content of chlorophyll. These above results indicated growth regulator treatment could reduce the reaction of membrane lipid peroxidation and the infiltration of membrane, and thus decrease the damage under low temperature in paper-tube seedlings.