江西农业学报2025，Vol.37Issue(5)：45-52,8.DOI:10.19386/j.cnki.jxnyxb.2025.05.007
8个欧洲李品种一年生枝条抗寒性评价
Cold-resistant Evaluation of Annual Branches of 8 European Plum Cultivars
摘要
Abstract
In this study,we simulated low temperature stress environments by subjecting 8 European plum varieties at-12,-16,-20,-24,-28,-32,-36 and-40℃,with 4℃as the control.The content of osmoregulatory substances,the activity of antioxidant enzymes and the semi-lethal temperature of annual branches were measured.The cold resistance of these cultivars was assessed using the membership function method.The results showed that YC-004 exhibited the lowest semi-lethal temperature at-25.18℃,while YC-008 had the highest LT50 at-16.87℃.According to the average membership degree,the cold resistance ranking of European plum varieties was as follows:YC-004＞YC-016＞YC-014＞YC-002＞YC-008＞YC-001＞YC-010＞YC-013.The cultivars with high cold resistance(YC-004 and YC-016)had lower relative conductivity,higher SOD and POD enzyme activities and higher soluble sugar accumulation at low temperatures,while the cultivars with low cold resistance had higher MDA content and more significant cell membrane damage.关键词
欧洲李/低温胁迫/抗寒性/半致死温度/隶属函数法Key words
European plum/Cold resistance/Semi-lethal temperature/Membership function method分类
园艺学与植物营养学引用本文复制引用
周嫣然,李影,杜卓霖,张展闳,马凯,耿文娟..8个欧洲李品种一年生枝条抗寒性评价[J].江西农业学报,2025,37(5):45-52,8.基金项目
新疆维吾尔自治区重点研发专项"新梅精深加工关键技术研究与功能性产品开发"(2024B02020) （2024B02020）
第二批重点研发专项——厅厅联动、厅地联动农业农村领域项目"新疆杏李、杏等主要果树抗寒关键技术研究"(2023B02026). （2023B02026）
