|Table of Contents|

Leaf Morphology and Physiological Response of Four Hebes Varieties Under High Temperature Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年11
Page:
56-63
Research Field:
Publishing date:

Info

Title:
Leaf Morphology and Physiological Response of Four Hebes Varieties Under High Temperature Stress
Author(s):
CHANG Cuifang1; GUO Lijuan2; YU Hong2; HAN Yamei1; ZHU Jingle3; WU Ronghua1
(1.College of Landscape Architecture and Art,Henan Agricultural University，Zhengzhou,Henan 450002；2.Zhengzhou City Forestry Word General Station，Zhengzhou,Henan 450002;3.Research Institute of Non-timber Forestry,Chinese Academy of Forestry,Zhengzhou,Henan 450003)
Keywords:
hebe; high temperature stress; phenotype; physiological indicators
PACS:
S 629
DOI:
10.11937/bfyy.20233811
Abstract:
Taking four hebe varieties as test materials，using artificial climate incubator to simulate high temperature stress to study the morphology，pigment content and physiological indexes of them，in order to select hebe varieties with strong heat resistance.The results showed that the leaf area increment in the growth index of hebe varieties was significantly reduced by phenotype analysis.When the stress reached 35 ℃，the ‘Silver-KARINA’ was severe；when the temperature reached 40 ℃，the survival rate of each variety dropped to 0%.Through the analysis of pigment content and physiological indicators，hebe were shady plants.With the strengthening of high temperature stress degree，hebe varieties leaf pigment content showed a trend of gradually decreased，the relative conductivity value，soluble protein content，proline content and POD activity were gradually increasing trend，CAT activity except ‘Genna’ continued rising trend，other varieties rose first.‘Genna’ variety had a high survival rate at high temperature，the most accumulation of beneficial substances and more stable membrane permeability.Therefore，it was preliminarily determined that the heat resistance of ‘Genna’ varieties was slightly better，while the heat resistance of the other three varieties was poor.

References:

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Last Update: 2024-06-27