|Table of Contents|

Physiological Responses of the Branches of Zizyphus jujuba to Low Temperature Stress Under Three Sampling Methods

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年23
Page:
26-31
Research Field:
Publishing date:

Info

Title:
Physiological Responses of the Branches of Zizyphus jujuba to Low Temperature Stress Under Three Sampling Methods
Author(s):
ADILI·Abulaiti; NUERMAIMAITI·Aimaiti; QIMAN·Yunusi
(College of Forestry and Horticulture，Xinjiang Agricultural University，Urumqi，Xinjiang 830052)
Keywords:
Zizyphus jujuba; low temperature stress; bound water/free water ratio; sampling method
PACS:
-
DOI:
10.11937/bfyy.20190293
Abstract:
The branches of 3-year-old jujube were sampled from low temperature refrigerator(A),snow pile(B) and field sampling(C).The changes of electrolyte exudation rate,malondialdehyde (MDA) content,soluble sugar content,soluble protein content,proline content and relative water content of jujube branches under artificial low temperature treatment were studied.The results showed that the electrolyte exudation rate,malondialdehyde (MDA),soluble protein and proline content of jujube branches varied little,but the bound water/free water value varied greatly,and the bound water/free water value was very high in the A sampling method,the results showed that the electrolyte exudation rate,malondialdehyde (MDA),soluble protein and proline content of jujube branches varied little among the three sampling methods.The maximum value reached 5.91 at -33 ℃,but the bound water/free water value was lower and the bound water/free water value was lower than 1 at -27 ℃,in addition,the soluble sugar content of branches was high under A sampling method,but lower under C sampling method.The results showed that the aboveground part of jujube contains the high content of free water and the low content of soluble sugar in the branches,which lead to the low intracellular concentration of the cells,which was prone to the ice injury and death in the branches.Therefore,the results of different sampling methods showed that sampling methods were very important in the study of cold resistance of fruit trees.

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Last Update: 2019-12-19