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Assessment of Indian Bean (Phaseolus vulgaris L.) Genotypes for Response to Ozone Protectant and Tropospheric Ozone Biomonitoring Potential | Abstract
Journal of Pollution Effects & Control

Journal of Pollution Effects & Control
Open Access

ISSN: 2375-4397

Abstract

Assessment of Indian Bean (Phaseolus vulgaris L.) Genotypes for Response to Ozone Protectant and Tropospheric Ozone Biomonitoring Potential

Priya Khumukcham, Usha Mina*, Felicity Hayes, Kakul Smiti and Prachi Yadav

Tropospheric ozone (O3) acts as a phytotoxic secondary air pollutant and a potent greenhouse gas. Obiomonitoring is a cost-effective approach compared to real time instrumental monitoring for identifying the potential effects of tropospheric Oon crop growth and yield. In this study, eight Indian bean (Phaseolus vulgaris L.) genotypes were assessed for O3bio-monitoring potential along with the pre-identified O3-sensitive (S156) and Oresistant (R123) bio-indicator Phaseolus genotypes provided by the international cooperative programme on effects of air pollution on natural vegetation and crops (ICP Vegetation), United Kingdom. One set of replicates was treated with the Oprotectant Ethylene-Di-Urea (EDU) while the other set was left under ambient environmental conditions without any treatment. The genotypes exposed to ambient Oexhibited 0%-40% foliar ozone injury, though the timing of appearance of foliar Oinjury symptoms was variable among the genotypes. Plants treated with EDU exhibited lower foliar injury. Foliar Oinjury symptoms exhibited a significant positive correlation with cumulative Oexposure (R2=0.73). The lipid peroxidation in bean plants under ambient Owas observed to be 10%-62% greater than that of plants treated with EDU. The total protein and total carbohydrate content were also 4%-43% and 7%-40% lower, respectively, in leaves of plants exposed to ambient Oas compared to plants treated with EDU. The results of the study indicate that the identified Osensitive genotypes of Phaseolus vulgaris viz. C1 (EC-755298) and C3 (IC-49810) can be used as Obio indicators for biomonitoring studies during the period between October and January in New Delhi, India.

Published Date: 2022-10-26; Received Date: 2022-07-04

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