接触辉光放电等离子体对紫花苜蓿种子萌发的促进作用及处理工艺

Effects of contact glow discharge plasma and seed treatment methodology on alfalfa seed germination

研究了接触辉光放电等离子体对于紫花苜蓿种子萌发的影响及其处理工艺。实验以紫花苜蓿种子为研究对象,首先探讨了在不同时间、电压及气体环境条件下接触辉光放电等离子体对于萌发的影响;然后在单因素实验的基础上,以种子萌发率以及活力指数为指标,采用响应面优化设计优化了处理种子工艺。结果表明:在处理时间30 min、电压540 V、气体环境为N2的条件下,种子萌发率达到最高为93%,叶片中光合色素含量以及光合作用强度显著提升,净光合速率增长98.4%。因此,辉光放电等离子体能够促进紫花苜蓿种子的萌发及生长、提高种子生理活性。研究结果为种子处理新技术的建立提供了理论依据。

Effects of contact glow discharge plasma on the germination of Alfalfa(Medicago sativa L.) seeds and treatment processing were investigated. Firstly, the influence of contact glow discharge plasma on the germination of Medicago sativa seeds was investigated under different times, voltages, and gas atmospheres. Then,on the basis of the single-factor experiment, the seed treatment process was optimized by response surface optimization design based on the indexes of seed germination rate and vigor index. The results showed that the germination rate of treated seeds reached 93%, the content of photosynthetic pigment and the intensity of photosynthesis in the leaves increased significantly, and the net photosynthetic rate increased by 98.4% under optimized conditions of 30 min, 540 V, and N2. All results indicate that contact glow discharge plasma can promote Alfalfa seed germination and growth, and improve seed physiological activity, thereby providing a theoretical basis for further research into new seed treatment technologies.