|Table of Contents|

Physiological Responses and Cold Resistance Assessment of Different Strawberry Germplasm Resources Under Low-temperature Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年3
Page:
59-66
Research Field:
Publishing date:

Info

Title:
Physiological Responses and Cold Resistance Assessment of Different Strawberry Germplasm Resources Under Low-temperature Stress
Author(s):
SONG Penghui1; MA Zhongyong2; LI Yuze1; LI Xingguo2; LI Wenhui2; JIAO Kuibao1
(1.Institute of Rural Revitalization Science and Technology，Heilongjiang Academy of Agricultural Sciences，Harbin,Heilongjiang 150023;2.College of Horticulture & Landscape Architecture，Northeast Agricultural University，Harbin,Heilongjiang 150030)
Keywords:
strawberry; low-temperature stress; physiological response; cold resistance
PACS:
S668.4
DOI:
10.11937/bfyy.20253337
Abstract:
Taking five strawberry germplasm resources as test materials，six temperature gradients were set，respectively 25 (CK)，5，0,-5,-10 ℃，and -15 ℃.Nine physiological indices of strawberry leaves were determined，including chlorophyll content，malondialdehyde (MDA)，relative electrical conductivity (REC)，proline (Pro)，soluble sugar (SS)，soluble protein (SP)，catalase (CAT)，superoxide dismutase (SOD)，and peroxidase (POD).The study investigated the variation trends of leaf physiological indices of different strawberry germplasm resources under different low-temperature stresses，and comprehensively evaluated the cold resistance of different strawberry germplasm resources using the subordinate function analysis method，in order to provide references for screening strawberry germplasm resources with strong cold resistance.The results showed that under low-temperature stress，the overall variation trends of the five strawberry germplasm resources were as follows,chlorophyll content decreased with the decrease of temperature;REC，MDA，SS，Pro，and SP showed similar variation trends,increasing as the temperature dropped;CAT，SOD，and POD exhibited a similar variation trend,first increasing and then decreasing with the decrease of temperature.Based on the comprehensive analysis results of the subordinate function method，the order of cold resistance of the five strawberry germplasm resources from strongest to weakest was determined as ‘H-3’＞‘15-7’＞‘Gongzhu No.2’＞‘7-6’＞‘Sweet Charlie’.

References:

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Last Update: 2026-02-24