|Table of Contents|

Responses of Different Fresh Apricot Varieties to Low Temperature Stress and Comprehensive Evaluation of Their Cold Resistance

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年9
Page:
63-71
Research Field:
Publishing date:

Info

Title:
Responses of Different Fresh Apricot Varieties to Low Temperature Stress and Comprehensive Evaluation of Their Cold Resistance
Author(s):
KANG Min1HE Yanhong1LIN Tao1TIAN Chun2ZHAO Yang1
(1.College of Forestry,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019;2.The Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine,Hohhot,Inner Mongolia 010000)
Keywords:
apricotcold resistanceendogenous hormonescorrelation analysismembership function analysis
PACS:
S 662.2
DOI:
10.11937/bfyy.20243565
Abstract:
Six different fresh-eating apricot varieties of one-year-old dormant branches were used as experimental materials and conducted experiments at 7 temperature treatments (CK (4 ℃),-10 ℃,-20 ℃,-25 ℃,-30 ℃,-35 ℃,-40 ℃) under controlled conditions.By measuring the contents of abscisic acid (ABA),gibberellin (GA),heteroauxin (IAA),zeatin riboside (ZR),the ratio of ABA to GA,electrical conductivity (REC),superoxide dismutase (SOD) activity,peroxidase (POD) activity,and catalase (CAT),and using the method of fuzzy function analysis to evaluate the differences in cold resistance among different varieties,in order to provide reference for selecting the varieties with stronger cold resistance for fresh-eating apricots.The results showed that in the condition of low temperature stress,ABA,ABA/GA,CAT,SOD and POD showed similar changes,increasing first and then decreasing,and the time of reaching the peak value was different;while GA,IAA and ZR content and REC increased with decreasing temperature,and were negatively correlated with plant cold resistance.According to the results of membership function comprehensive analysis,the cold resistance of the apricot was ranked from strong to weak as ‘Yanzhihong’>‘Shanxi Dahuangxing’>‘Laoshanhong’>‘Lanzhou Dajiexing’>‘Fengyuan Hong’>‘Jinxing’.

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Last Update: 2025-05-16