|Table of Contents|

Effects of Salt Stress on the Growth and Physiological Activities of Chrysanthemum Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年4
Page:
82-89
Research Field:
Publishing date:

Info

Title:
Effects of Salt Stress on the Growth and Physiological Activities of Chrysanthemum Seedlings
Author(s):
HUANG Yanzhu1; LU Jing2; CUI Liang3; ZHANG Li1; YANG Xiaoying1
(1.College of Civil Architecture,Yinchuan University of Energy,Yinchuan,Ningxia 750100；2.Ningxia Technical College of Wine and Desertification Prevention,Yinchuan,Ningxia 750199;3.Ningxia XiangruiSheng Ecological Environment Co.Ltd.，Yinchuan,Ningxia 750011)
Keywords:
Chrysanthemum; salt stress; growth index; physiological activity
PACS:
S 682.1+1
DOI:
10.11937/bfyy.20242832
Abstract:
Taking the cutting seedlings of one-year cut Chrysanthemum as test materials, the effects of salt stress on the above ground and underground growth indexes and physiological activities of cut Chrysanthemum were studied by using different concentrations of NaCl (0,50,100,150,200 mmol·L-1) to simulate salt stress for 7 days,in order to reveal the salt tolerance of Chrysanthemum,and provide a reference for the breeding and production of Chrysanthemum in Ningxia and summer regions and the cultivation of salt tolerant varieties.The results showed that as the severity of salt stress increased，the growth and development of the seedlings were significantly inhibited.There was a strong correlation between the aboveground and underground growth,total root length was significantly positively correlated with canopy width (0.713)；total root surface area，total root volume，and root tip number were significantly positively correlated with plant height (0.567，0.487，0.593)，canopy width (0.726，0.622，0.730)，leaf width (0.708，0.658，0.487)，and leaf length (0.643，0.605，0.549)；branch number was significantly positively correlated with plant height (0.613)，canopy width (0.514)，and leaf length (0.524)；root weight was significantly positively correlated with plant height (0.578) and canopy width (0.656)；aboveground weight was significantly positively correlated with total root surface area (0.562) (P＜0.01).As soil pH increased，a large amount of peroxides accumulated inside the chrysanthemum，resulting in cell membrane damage，increased cell permeability，the relative conductivity rose,the chlorophyll content decreased，while the soluble sugar content and the activities of antioxidant system enzymes SOD and POD increased to counteract the damage from peroxidation.The salt tolerance of ‘Bruno Yellow’ was found to be the best，while ‘Caste’ exhibited the weakest resistance.

References:

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Last Update: 2025-02-28