title: Role of ethylene diurea (EDU) in assessing impact of ozone on Vigna radiata L. plants in a suburban area of Allahabad (India).
abstract: A field study was conducted to evaluate the suitability of ethylene diurea (N-[2-(2-oxo-1-imidazolidinyl)ethyl]-N'-phenylurea; EDU) in assessing the impact of O3 on mung bean plants (Vigna radiata L. var. Malviya Jyoti) grown in suburban area of Allahabad city situated in a dry tropical region of India. EDU is a synthetic chemical having anti-ozonant property. Mean monthly O3 concentration varied between 64 and 69 microg m(-3) during the experimental period. In comparison to EDU-treated plants, non-EDU-treated plants showed significant reductions in plant growth and yield under ambient conditions. Significant favourable effects of EDU-application were observed with respect to photosynthetic pigments, soluble protein, ascorbic acid and phenol contents. EDU-treated plants maintained higher levels of pigments, protein and ascorbic acid in foliage as compared to non-EDU-treated ones. The study clearly demonstrated that EDU alleviates the unfavourable effects of O3 on mung bean plants, and therefore can be used as a tool to assess the growth and yield losses in areas having higher O3 concentrations.
authors.affiliation: Lab of Air Pollution and Global Climatic Change, Department of Botany, Banaras Hindu University, Varanasi 221 005, India. sbagarwaldr@sancharnet.in
authors.forename: S B
authors.initials: SB
authors.lastname: Agrawal
authors.forename: Anoop
authors.initials: A
authors.lastname: Singh
authors.forename: Dheeraj
authors.initials: D
authors.lastname: Rathore
mesh_terms: D000383:Agriculture; D000393:Air Pollutants / Q000633:toxicity; D004784:Environmental Monitoring; D007887:Fabaceae / Q000254:growth & development*; D007194:India; D010083:Oxidants, Photochemical / Q000633:toxicity*; D010126:Ozone / Q000633:toxicity*; D010671:Phenylurea Compounds / Q000494:pharmacology*
chemical_list: D000393:Air Pollutants; D010083:Oxidants, Photochemical; D010671:Phenylurea Compounds; C032766:ethylene diurea; D010126:Ozone