›› 2017, Vol. 29 ›› Issue (7): 1144-1150.DOI: 10.3969/j.issn.1004-1524.2017.07.12

• Horticultural Science • Previous Articles     Next Articles

Effects of exogenous melatonin on phenolic substance content and antioxidant ability of kiwifruit seedlings under salt stress

GAO Fan1, XIA Hui2, YUAN Xuezhen1, HUANG Shouyi1, LIU Ji3, LIANG Dong2, *   

  1. 1. College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China;
    2. Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China;
    3. Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China
  • Received:2017-03-03 Online:2017-07-20 Published:2017-07-24

Abstract: One-year-old wild Actinidia deliciosa seedlings were treated with exogenous melatonin solution in order to investigate the effects of electrolyte leakage, phenolic substances (total phenolics, total flavonoids and total flavanols) and antioxidant activities were evaluated, including ABTS.+ radical scavenging capacity (ABTS), DPPH radical scavenging capacity (DPPH), and iron ion reducing ability (FRAP).The results showed that the relative electrolytic leakage was reduced, total phenolics and total flavonoids were significantly increased and antioxidant ability was improved. This suggested that MT pretreatment alleviated the damage by salt stress in kiwifruit seedlings, and thus improved the salt resistance.

Key words: kiwifruit, exogenous melatonin, salt stress, phenolic, antioxidant ability

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