|Table of Contents|

Effects of Salt Stress on Strawberry Seedling Growth and Antioxidant System

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年17
Page:
22-29
Research Field:
Publishing date:

Info

Title:
Effects of Salt Stress on Strawberry Seedling Growth and Antioxidant System
Author(s):
YAO Yutao; ZHANG Guoxin; DING Shoupeng; SUN Yeshuo
(Coastal Agriculture Institute,Hebei Academy of Agriculture and Forestry Sciences/Hebei Technical Research Center of Saline-alkali Soil Greening Project/Tangshan Key Laboratory of Plant Salt Tolerance Research,Caofeidian,Hebei 063200)
Keywords:
strawberry seedling stage; salt tolerance; salt damage index; MDA; antioxidant enzyme activity
PACS:
-
DOI:
10.11937/bfyy.20210368
Abstract:
Taking 12 domestic market main strawberry varieties as the test materials,the changes of different strawberry varieties were studied by stalk length,average stem thickness,SPAD,root length,K+/Na+,root crown ratio,MDA,POD,SOD,CAT and salt damage index, in order to provide a reference for the evaluation of salt tolerance in strawberry seedling stage.The results showed that under T1 (3 g·L-1) treatment conditions,the salt damage indexes of strawberry varieties No.9 (‘Ji Chun’),No.11 (‘Bai Xue Princess’),and No.12 (‘Zhang Ji’) were 19.58%,13.92% and 18.68%,respectively.The content of MDA in the leaves of 12 strawberry varieties was lower under freshwater treatment conditions,and the MDA content in the leaves of 12 strawberry varieties in T1 treatment was significantly higher than that in CK treatment.Among them,No.9 and No.11 compared with the control,the three strawberry varieties and No.12 have the lowest increase in value,indicating that the membrane lipid oxidation damage to the cell membrane was the lowest; with the increase in the concentration of brackish water irrigation,the SOD,POD and CAT enzyme activities in the leaves of the 12 strawberry varieties were significantly reduced .Through the three research methods of salt damage index method and the changes of strawberry leaf MDA content and related antioxidant enzyme activities,a comprehensive analysis has obtained three high salt-tolerant strawberry varieties No.9 (‘Jichun’),No.11(‘Snow White’) and No.12 (‘Zhang Ji’) that are suitable for brackish water irrigation.

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Last Update: 2021-12-09