Influences of Air, Oxygen, Nitrogen, and Carbon Dioxide Nanobubbles on Seed Germination and Plant Growth

Document Type

Article

Publication Date

5-23-2018

Abstract

Nanobubbles (NBs) hold promise in green and sustainable engineering applications in diverse fields (e.g., water/wastewater treatment, food processing, medical applications, and agriculture). This study investigated the effects of four types of NBs on seed germination and plant growth. Air, oxygen, nitrogen, and carbon dioxide NBs were generated and dispersed in tap water. Different plants, including lettuce, carrot, fava bean, and tomato, were used in germination and growth tests. The seeds in water-containing NBs exhibited 6-25% higher germination rates. Especially, nitrogen NBs exhibited considerable effects in the seed germination, whereas air and carbon dioxide NBs did not significantly promote germination. The growth of stem length and diameter, leave number, and leave width were promoted by NBs (except air). Furthermore, the promotion effect was primarily ascribed to the generation of exogenous reactive oxygen species by NBs and higher efficiency of nutrient fixation or utilization.

Identifier

85046677215 (Scopus)

Publication Title

Journal of Agricultural and Food Chemistry

External Full Text Location

https://doi.org/10.1021/acs.jafc.8b00333

e-ISSN

15205118

ISSN

00218561

PubMed ID

29722967

First Page

5117

Last Page

5124

Issue

20

Volume

66

Fund Ref

Ministry of Higher Education

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