Investigating plasma activated water as a sustainable treatment for improving growth and nutrient uptake in maize and pea plant

IF 6.1 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2024-10-15 DOI:10.1016/j.plaphy.2024.109203

Roshani Dahal , Oat Bahadur Dhakal , Tirtha Raj Acharya , Prajwal Lamichhane , Sandhya Gautam , Roshan Chalise , Neha Kaushik , Eun Ha Choi , Nagendra Kumar Kaushik

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Abstract

In this study, an atmospheric pressure air plasma jet (APAPJ) was employed to generate plasma-activated water (PAW), which was applied to treat maize (monocot) and pea (dicot) seeds for evaluating its influence. This research explored APAPJ diagnostics by varying the air feed rate as 1, 2, and 3 liter per minute (Lpm) through current-voltage characterization, optical emission spectroscopy, electron temperature and density, nitrogen metastable state density, and rotational and vibrational temperature of the plasma. Additionally, various reactive oxygen and nitrogen species (RONS) formed and physicochemical properties of PAW were analyzed by varying plasma treatment time from 0 to 8 min. Furthermore, the water uptake of maize (Zea mays) and pea (Pisum sativum) seeds were examined by the measurement of the contact angle. Results indicated that APAPJ has the capacity of fostering germination, growth, chlorophyll, phosphorus, nitrite, nitrate, ammonium ion and leaf area in plants significantly with an optimized 6 min treated PAW for maize and 2 min treated PAW for peas. Among various categories, seeds soaked in PAW and irrigated with PAW exhibited the most outstanding result in germination and plant growth. Non-thermal plasma showed promising green methods for enhancing plant growth and boosting nutrient content.

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研究等离子体活化水作为一种可持续的处理方法，用于改善玉米和豌豆的生长和养分吸收。

本研究采用常压空气等离子射流（APAPJ）生成等离子活化水（PAW），并将其用于处理玉米（单子叶植物）和豌豆（双子叶植物）种子，以评估其影响。这项研究通过电流-电压表征、光学发射光谱、电子温度和密度、氮态密度以及等离子体的旋转和振动温度，将进气量调整为每分钟 1 升、2 升和 3 升（Lpm），探索了 APAPJ 的诊断方法。此外，通过改变等离子体处理时间（0 至 8 分钟），分析了所形成的各种活性氧和氮物种（RONS）以及 PAW 的理化性质。此外，还通过测量接触角考察了玉米（Zea mays）和豌豆（Pisum sativum）种子的吸水性。结果表明，经 6 分钟优化处理的玉米种子（PAW）和经 2 分钟处理的豌豆种子（PAW）可显著促进植物的发芽、生长、叶绿素、磷、亚硝酸盐、硝酸盐、铵离子和叶面积。在各类种子中，用 PAW 浸泡和灌溉的种子在发芽和植物生长方面表现最为突出。非热等离子体在促进植物生长和提高营养成分含量方面显示出良好的绿色方法前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant Physiology and Biochemistry 生物-植物科学

CiteScore

11.10

自引率

3.10%

发文量

410

审稿时长

33 days

期刊介绍： Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.