|Table of Contents|

Alleviating Effect of Exogenous Melatonin on Phaseolus vulgaris Seedlings Under Alkali Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年7
Page:
17-26
Research Field:
Publishing date:

Info

Title:
Alleviating Effect of Exogenous Melatonin on Phaseolus vulgaris Seedlings Under Alkali Stress
Author(s):
SHI Zhenxi; SU Yi; YANG Xiaoxu; LIU Dajun; LIU Chang; FENG Guojun
(School of Modern Agriculture and Ecological Environment,Heilongiiang University,Harbin,Heilongiang 150000)
Keywords:
Phaseolus vulgaris L.; alkali stress; melatonin; seedling
PACS:
S 643.1
DOI:
10.11937/bfyy.20233956
Abstract:
The effects of exogenous melatonin on the growth and alkaline tolerance of kidney bean seedlings under alkaline stress were studied by using the nutrient solution hydroponic method with the alkali-tolerant variety ‘Fenguan’ and the relatively alkaline-sensitive variety ‘1-4-3-1-1’ as the experimental materials.Four treatments were set up control (CK)，exogenous 0.1 μmol·L-1 melatonin (MT)，60 mmol·L-1 NaHCO3 solution alkaline stress (S)，and melatonin addition under alkaline stress (S+MT),in order to provide reference for improving the alkaline tolerance of kidney bean in saline-alkaline areas.The results showed that melatonin could reduce the damage of alkali stress on the biofilm of kidney bean seedlings，increase biomass，SOD activity and soluble protein content，increase proline and soluble sugar content in leaves and POD activity in roots.The physiological responses of the two bean varieties to alkali stress were different.The alkali tolerance of ‘Fenguan’ was stronger.Melatonin could effectively alleviate the damage of alkali stress to bean seedlings，and the relief effect on the relatively alkali-sensitive variety ‘1-4-3-1-1’ was better.

References:

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Last Update: 2024-05-08