辐射研究与辐射工艺学报2026，Vol.44Issue(4)：113-129,17.DOI:10.11889/j.1000-3436.2025-0110
介质阻挡放电等离子体对苜蓿种子活力的影响及综合评价模型构建
Effect of dielectric barrier discharge plasma on alfalfa seed vigor and the construction of comprehensive evaluation model
摘要
Abstract
Low temperature plasma has been considered as a green technology that can stimulate seed germination and seedling growth.In order to explore the optimal conditions for the effect of dielectric barrier discharge plasma(DBD)discharge voltage and treatment time on alfalfa seed vigor,this paper used binary quadratic orthogonal regression rotation combination design to investigate the effects of treatment voltage and time on seed germination rate,germination potential,germination index,vigor index,water absorption,relative conductivity and seedling fresh-dry ratio.The comprehensive evaluation model(Z value)of seed vigor was constructed by AHP-entropy weight method to determine the optimal treatment conditions.The results showed that under the experimental conditions of the binary quadratic orthogonal regression rotation combination design,plasma treatment could significantly improve the seed germination index,with the rate and vigor index reaching 78.33%and 613.71,respectively.The seedling length increased to 46.83 mm.The fresh-dry ratio and water absorption rate reached 19.03 and 94.23%,respectively.The relative conductivity and MDA content decreased to 28.15%and 0.009 μmol/g,respectively.Analysis of variance showed that voltage and time had extremely significant effects on Z values(p＜0.01),and the effect of voltage was greater than that of time.The model optimization showed that the optimal conditions for DBD treatment of alfalfa seeds were voltage of 18.60 kV and time of 24 s,and the predicted score Z was 83.60.The experimental results showed that the Z value is 90.54 under this condition,which is better than the predicted value.Scanning electron microscopy analysis confirmed that DBD treatment enhanced the water absorption capacity of seeds and accelerated the germination process.The comprehensive evaluation model established in this paper provides a reliable method for optimizing DBD seed treatment conditions,and the obtained results also lay a theoretical foundation for the application of plasma in agriculture.关键词
苜蓿种子活力/条件优化/AHP-熵权法/介质阻挡放电等离子体Key words
Alfalfa seed vigor/Condition optimization/AHP-entropy weight method/Dielectric barrier discharge plasma分类
生物科学引用本文复制引用
李莹艳,常吉庆,乔艺颖,董露露,柳佳清,龙海涛,蒲陆梅..介质阻挡放电等离子体对苜蓿种子活力的影响及综合评价模型构建[J].辐射研究与辐射工艺学报,2026,44(4):113-129,17.基金项目
国家自然科学基金(31860472) Supported by National Natural Science Foundation of China(31860472) （31860472）
