|Table of Contents|

Effects of Saline-alkali Stress and Drought Stress on Seed Germination of Lychnis fulgens Fisch.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年10
Page:
86-93
Research Field:
Publishing date:

Info

Title:
Effects of Saline-alkali Stress and Drought Stress on Seed Germination of Lychnis fulgens Fisch.
Author(s):
YUE Liran; CHENG Beibei
(College of Landscape Architecture，Northeast Forestry University，Harbin，Heilongjiang 150040)
Keywords:
saline-alkali stress; drought stress; Lychnis fulgens Fisch.; PEG
PACS:
-
DOI:
10.11937/bfyy.20183515
Abstract:
With seeds of Lychnis fulgens Fisch.as test materials,using the method that salt environment,alkaline environment and arid environment were simulated,the sodium chloride solution (simulated salt environment),sodium carbonate solution (simulated alkaline environment) and polyethylene glycol solution (simulated drought environment) on the impact of Lychnis fulgens Fisch.were studied,in order to realize the scientific prospect of plant planting and planting and garden greening in salinization and arid areas.The results showed that the germination rate,relative germination rate and other indexes of seeds showed a decreasing trend with the increase of PEG concentration under drought stress,and the germination rate and other indexes of seeds were 0 when PEG concentration were 10% and 15%.Under salinity and alkali stress,the germination rate was very low when the concentration of sodium chloride solution was 0.90%,only 1.11%,while the germination rate was 0 when the concentration of sodium carbonate solution was 0.30%.It can be seen that alkali stress had a stronger inhibitory effect on seed germination than salt stress.In the relapse test,the relapse rate increased with the increase of the concentration at a lower concentration,and was the highest when the concentration was 0.90% saline solution and 5%PEG solution.When the concentration was further increased,irreparable damage was caused to the seeds,making them completely lose the ability to germinate.After that,the relapse rate of the seeds began to decline again.

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Last Update: 2019-06-27