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Ethylenediurea regulates growth and physiochemical responses of Pisum sativum to ambient O 3
International Journal of Environmental Science and Technology ( IF 3.1 ) Pub Date : 2021-01-17 , DOI: 10.1007/s13762-020-03077-1
F. Jabeen , S. Ahmed

Tropospheric ozone (O3) is a widespread secondary photochemical air pollutant, which occurs naturally at ground level in low concentration and is regarded the most damaging air toxicant. Current study was conducted to evaluate the potential of ethylenediurea (EDU) on the growth and physiochemical attributes of pea cultivar exposed to ambient O3 stress. Ozone stress reduced growth and biomass production of Pisum sativum. Application of EDU concentration of 450 ppm via soil drenching significantly enhanced growth and biomass of P. sativum. Application of EDU escalated relative water content and ascorbic acid content in P. sativum seedlings ultimately showing a significant increment in air pollution tolerance index up to 38.6% with EDU-450 treatment making the seedling more tolerant to the air pollution. The increasing concentrations of EDU showed significant increase in total soluble sugar, protein and proline contents, while phenolic contents were significantly decreased up to 36.6% with 450 ppm treatment of EDU. Furthermore, EDU treatment enhanced the activity of superoxide dismutase and ascorbate peroxidase. Current research reveals that EDU ameliorates the deleterious O3 effects on P. sativum and it can be used as an effective tool to enhance crop productivity at elevated levels of O3 concentration.



中文翻译:

乙二脲调节豌豆对环境中O 3的生长和理化反应

对流层臭氧(O 3)是一种广泛的次级光化学空气污染物,在地面上低浓度时自然发生,被认为是最具破坏性的空气毒物。当前的研究是为了评估乙二脲(EDU)对暴露于环境O 3胁迫的豌豆品种的生长和理化特性的潜力。臭氧胁迫降低了豌豆的生长和生物量的生产。通过土壤浸润施用450 ppm EDU浓度可显着增强番茄的生长和生物量EDU递增相对水分和抗坏血酸含量在番茄中的应用。使用EDU-450处理后,幼苗最终显示出高达38.6%的耐空气污染指数显着提高,使幼苗更耐空气污染。EDU浓度的增加显示总可溶性糖,蛋白质和脯氨酸的含量显着增加,而450 ppm EDU处理的酚类含量显着降低至36.6%。此外,EDU处理提高了超氧化物歧化酶和抗坏血酸过氧化物酶的活性。目前的研究表明,EDU改善有害Ø 3的效果P.豌豆,它可以作为一个有效的工具在澳水平升高,以提高作物产量3浓度。

更新日期:2021-01-18
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