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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (28): 57-61.doi: 10.11924/j.issn.1000-6850.casb2021-0474

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Analysis on Cold Resistance of Hybrid Blueberry ‘Xing’an No.1’

Tong Bin(), Li Hong, Sun Bo()   

  1. Institute of Nature and Ecology, Heilongjiang Academy of Sciences, Harbin 150040
  • Received:2021-05-07 Revised:2021-07-02 Online:2021-10-05 Published:2021-10-28
  • Contact: Sun Bo E-mail:tuba123@163.com;sunbome@163.com

Abstract:

This paper aims to solve the problem of cold resistance evaluation of wild blueberry. The ‘Xing’an No.1’ hybrid blueberry, American bush blueberry and wild blueberry were selected as materials. Potted plants were used to implement gradient cold protection, and their physiological indicators under low temperature stress were measured. Combined with the membership function method, the cold resistance of the three blueberry varieties was comprehensively evaluated. The results showed that under moderate low temperature stress, compared with CK, the relative electrical conductivity, the MDA content, the H2O2 content, O2-rate and the ABA content of the three blueberry varieties were significantly increased; the weight values of MDA content, relative conductivity and O2-rate were relatively large, and the cold resistance order was: ‘Xing’an No.1’> wild blueberry > American bush. The results of field trials and comprehensive evaluation of cold resistance tended to be consistent.

Key words: hybrid blueberry, low temperature stress, cold resistance, comprehensive evaluation, field trials

CLC Number: