|Table of Contents|

Effect of NaCl Simulation of Salt Stress on Seed Germination and Seedling Growth of Ammopiptanthus mongolicus(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年14期
Page:
65-72
Research Field:
Publishing date:

Info

Title:
Effect of NaCl Simulation of Salt Stress on Seed Germination and Seedling Growth of Ammopiptanthus mongolicus
Author(s):
ZHANG JiaoZHANG Da-zhiMA YanLI Ying-yun
School of Life Science,Ningxia University,Yinchuan,Ningxia 750021
Keywords:
Ammopiptanthus mongolicusNaClsalt stressseed germinationseedling growth
PACS:
S 793.9
DOI:
-
Abstract:
Taking seeds of Ammopiptanthus mongolicus as material,seed germination and seedling growth of Ammopiptanthus mongolicus were measured under treatment of ten different NaCl concentrations from 10 to 100 mmol/L with incubation method,and the restoration germination of seeds was observed.The results showed that the seed germination percentage of Ammopiptanthus mongolicus showed a significant negative correlation(R2=0.9602) with NaCl stress,seed germination percentage of Ammopiptanthus mongolicus were improved by low content NaCl(10 mmol/L) stress and treated with NaCl concentration at<30 mmol/L was not significantly comparing with control,however the germination of those seeds treated with NaCl at higher concentration (≥80 mmol/L)was inhibited.The seedling root length,the fresh weight of shoots and roots of seedlings,and the R/T rate of seedlings gradually decreased with the increasing of the concentration of NaCl,activity of POD and SOD,soluble sugar,proline tended towards increase to decrease,activity of CAT and MDA content tended to go up gradually,and TTC showed a single-peak curve.When removing these tress of NaCl,some non-germinable Ammopiptanthus mongolicus seeds germinated after complexed distilled water and 200 mg/L Gibberellin and recovery germination percentage reached 15.8% and 23.1%.Comprehensive comparison,Ammopiptanthus mongolicus seed germination recovery germination was significantly negative correlation with salt concentration.It also showed that Ammopiptanthus mongolicus seeds displayed a higher potential germination and salt resistance properties in a range of NaCl concentrations and were inactivated in higher concentrations.

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Last Update: 2014-08-07