|Table of Contents|

Effects of Exogenous Melatonin on Chilling Tolerance of  Cucumber Seedlings Under Low Temperature Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年14
Page:
55-59
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous Melatonin on Chilling Tolerance of  Cucumber Seedlings Under Low Temperature Stress
Author(s):
ZHAO Xiaohong; LUO Qingxi; RAO Ling
(School of Horticulture and Landscape Architecture，Southwestern University，Chongqing 400715)
Keywords:
melatonin; low temperature; protective enzymes; antioxidant substances
PACS:
-
DOI:
10.11937/bfyy.20164959
Abstract:
At low temperature (day/night，15 ℃/10 ℃)，with‘Qingbai’cucumber as raw material，the effect of different MT concentrations(0,50,100,200,400 μmol?L-1)on the seedling growth and antioxidant activities of cucumber were studied.The results showed that when MT concentration was 100 μmol?L-1，cucumber growth was the best，the plant height，stem diameter，seedling index，leaf area，root shoot ratio were increased by 10.4%，22.9%，57.4%，18.0%，63.6%.At the second days of low temperature，the activities of superoxide dismutase (SOD)，peroxidase (POD) and catalase (CAT) were significantly increased，compared with the control，100 μmol?L-1 MT respectively increased by 20.7%，28.6%，10.3%.

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Last Update: 2017-07-25