Effect of Dielectric Barrier Discharge Cold Plasma on Pea Seed Growth

被引：56
作者：
Gao, Xiaoting [1 ,2 ]
Zhang, Ai [1 ]
Heroux, Paul [3 ]
Sand, Wolfgang [1 ]
Sun, Zhuyu [1 ]
Zhan, Jiaxun [1 ]
Wang, Cihao [1 ]
Hao, Siyu [1 ]
Li, Zhenyu [1 ]
Li, Zhenying [1 ]
Guo, Ying [4 ]
Liu, Yanan [1 ,2 ]
机构：
[1] Donghua Univ, Coll Environm Sci & Engn, 2999 North Renmin Rd, Shanghai 201620, Peoples R China
[2] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China
[3] McGill Univ, Dept Epidemiol Biostat & Occupat Hlth, Montreal, PQ H3A 0G4, Canada
[4] Donghua Univ, Coll Sci, Dept Appl Phys, Shanghai 201620, Peoples R China
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2019年 / 67卷 / 39期
基金：
中国国家自然科学基金;
关键词：
DBD plasma; plasma-activated tap water (PATW); plasma-activated seeds (PAS); seedling growth; improvement mechanism; ESCHERICHIA-COLI; MAGNETIC-FIELD; NITRIC-OXIDE; GERMINATION; WATER; INACTIVATION; ENHANCEMENT; PERFORMANCE; CHEMISTRY; LEGUMES;
D O I：
10.1021/acs.jafc.9b03099
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Traditional seed pretreatment methods cause secondary pollution for the application of various chemicals. This study investigated the effect of dielectric barrier discharge (DBD) cold plasma on seedling growth. Effects of plasma-activated tap water (PATW) and plasma-activated seeds (PAS) were compared for germination rates, seedling height, dry weight, and chlorophyll content. Results show that compared with controls these growth parameters were all increased by more than 50%. The yields and contributions of hydrogen peroxide, nitrate, nitrite, and ammonium were quantified. Hydrogen peroxide and nitrate have an important role in seedling growth. By etching, the seed epidermis free radicals can reduce the apparent contact angle and increase the water absorption of the seeds. In addition to the low cost of PATW and PAS compared with commercial fertilizers, DBD does not involve any chemical addition. Thus, both PATW and PAS can be an alternative for improvement of agricultural production.
引用
收藏
页码：10813 / 10822
页数：10
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