亚热带植物科学2025，Vol.54Issue(1)：45-53,9.DOI:10.3969/j.issn.1009-7791.2025.01.006
马大相思9个无性系抗寒性评价
Evaluation of Cold Resistance of 9 Clones of Acacia mangium×A.auriculiformis
摘要
Abstract
The seedlings of 9 clones of Acacia mangium×A.auriculiformis were used as experimental materials,and the cold environment was simulated by a large low-temperature artificial climate chamber.Physiological indexes of the seedling,such as relative electrical conductivity(REC),soluble protein(SP),free proline(Pro)and malondialdehyde(MDA)were determined,and the cold resistance of 9 clones of A.mangium×A.auriculiformis were evaluated by membership function method comprehensively.Results showed that the REC and SP content of leaves of different clones increased gradually,the Pro content and SOD activity increased first and then decreased,and the MDA content increased first and then decreased and then increased under low temperature stress.According to the average membership function value,the rank of the cold resistance of 9 clones of A.mangium×A.auriculiformis was No.8>No.7>No.6>No.2>No.1>No.9>No.3>No.4>No.5.The No.8 had the strongest cold resistance,and it could be used as a high quality cold resistance material for hybrid breeding and cultivation.关键词
马大相思/无性系/生理指标/抗寒性/隶属函数法Key words
Acacia mangium×A.auriculiformis/clones/physiological index/cold resistance/membership function method分类
林学引用本文复制引用
廖仿炎,陈泊臻,王力涵,王雨欣,李娜,朱报著,张卫华..马大相思9个无性系抗寒性评价[J].亚热带植物科学,2025,54(1):45-53,9.基金项目
国家自然科学基金(32271918) （32271918）
