|Table of Contents|

Effects of Drought Stress on the Root Architecture and Physiological Activity of Cut Chrysanthemum Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年2
Page:
47-54
Research Field:
Publishing date:

Info

Title:
Effects of Drought Stress on the Root Architecture and Physiological Activity of Cut Chrysanthemum Seedlings
Author(s):
YANG Xiaoying1; 2; HUANG Yanzhu1; HAO Chunlei3; MU Bo4; YAN Rui2; ZHANG Li1; 2
(1.College of Civil Architecture,Yinchuan University of Energy,Yinchuan,Ningxia 750100;2.College of Agriculture，Ningxia University，Yinchuan,Ningxia 750021;3.Ningxia Shengxu Hao Chun Agricultural Technology Co.Ltd., Yinchuan，Ningxia 750001;4.Ningxia Qian Yi Agricultural Technology Co.Ltd.，Yinchuan，Ningxia 750001)
Keywords:
cut Chrysanthemum; drought stress; root system architecture; physiological activity
PACS:
S 682.1+1
DOI:
10.11937/bfyy.20232790
Abstract:
Taking six varieties of cut Chrysanthemum seedlings as experimental materials,through pot cultivation and artificial watering with a 20 mmol·L-1 concentration of PEG 6000，simulating drought stress，the changes in root system architecture and physiological indicators of cut Chrysanthemum were investigated on the 5th，10th，15th，and 20th days of drought stress.The aim was to identify excellent cut Chrysanthemum varieties with strong drought resistance and suitable for large-scale promotion and cultivation in the arid region of Ningxia，in order to provide reference for the promotion of Chrysanthemum varieties in western arid areas.The results showed that as drought stress continued，the total length，surface area and volume of the root systems of cut Chrysanthemumwere significantly correlated with the total index.There was no correlation between average root diameter and other root indexes except total volume.Compared with water，the relative water content and chlorophyll of the Chrysanthemum leaves of different varieties continuously decreased，while the relative conductivity and soluble protein content increased.The content of malondialdehyde and soluble sugars first increased and then decreased，and the activity of peroxidase first decreased，then increased.The activity of superoxide dismutase showed an initial increase，then a decrease，and finally an increase.

References:

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Last Update: 2024-02-08