|Table of Contents|

Effects on Drought Resistance of Different Zizyphus acidojujuba Clones Under Water Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年04
Page:
16-24
Research Field:
Publishing date:

Info

Title:
Effects on Drought Resistance of Different Zizyphus acidojujuba Clones Under Water Stress
Author(s):
LIU Qingbai; LU Jie; LIU Quangang; DONG Shengjun
(College of Forestry，Shenyang Agricultural University，Shenyang，Liaoning 110161)
Keywords:
Zizyphus acidojujuba; water stress; drought resistance; Chaoyang of Liaoning
PACS:
-
DOI:
10.11937/bfyy.20222311
Abstract:
Taking different Zizyphus acidojujuba clones as test materials in Chaoyang of Liaoning Province，China,applied to determination and analysis their main indexes of drought resistance under water stress and rehydration condition，the influence on resistance of different Zizyphus acidojujuba clones under water stress was researched，in order to provide reference for select and breed fine varieties of Zizyphus acidojujuba.The results showed that，after water stress treatment，the relative water content of leaf (RWC) in various clones showed a trend of decreasing at first and then increasing，and the LW1 clone was higher than other clones.The contents of malondialdehyde，proline，soluble sugar，soluble protein and SOD activity in various clones increased at first and then decreased，and the contents of malondialdehyde，proline and soluble sugar in LW4 clone were significantly better than those in other clones.After 15 days of stress treatment，the contents of soluble sugar and malondialdehyde in LW4 clone were 21.5 mg?g-1 and 18.2 μmol?g-1，respectively，which were very significant difference from those in LW5 clone.The relative water content of leaves in LW1 clone was 91.2%，which was very significant difference from that of LW5 clone.The comprehensive evaluation scores of the Zizyphus acidojujuba clones ranked were LW1，LW4，LW11，LW8 and LW5 in order from higher to lower.

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Last Update: 2023-03-21