|Table of Contents|

Effects of MeJA on Seed Germination and Seedling Growth of Glebionis coronaria Under Salt Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年24
Page:
8-14
Research Field:
Publishing date:

Info

Title:
Effects of MeJA on Seed Germination and Seedling Growth of Glebionis coronaria Under Salt Stress
Author(s):
LING Na1HAN Lingyun1HUANG Zhijia1YANG Ziyi1LIU Xinping1MENG Fanrong2
(1.College of Architecture and Landscape,Shangqiu University,Shangqiu,Henan 476000;2.College of Life Science,Henan Agricultural University,Zhengzhou,Henan 450002)
Keywords:
Glebionis coronariamethyl jasmonatesalt stressseed germinationgrowth physiology
PACS:
S 636.9
DOI:
10.11937/bfyy.20242248
Abstract:
Taking the seeds of Glebionis coronaria as the test material,the effects of exogenous methyl jasmonate (MeJA) at different application concentrations (0.02,0.20,2.0,20,200 μmol·L-1) and soaking times (0,3,6,9,12,15 hours) on the germination indicators (germination rate,germination index,germination time,and shoot length),seedling growth indicators (root length,stem length,relative water content),and physiological indicators (chlorophyll,soluble sugar,soluble protein,proline content) of Glebionis coronaria seeds under salt stress were studied by using a water culture method with small leaves,in order to explore the optimal application concentration and treatment time of MeJA to alleviate salt damage in Glebionis coronaria.The results showed that under 150 mmol·L-1 NaCl stress,MeJA-treated seeds could alleviate salt damage to varying degrees.Among them,treatment with a 20 μmol·L-1 MeJA solution for 6 hours was the optimal concentration and time,significantly increasing seed germination rate and germination index,and also showed good effects on the growth of Glebionis coronaria seedlings.The content of chlorophyll and osmotic regulating substances increased.

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Last Update: 2025-01-07