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Amelioration of Indian urban air pollution phytotoxicity in Beta vulgaris L. by modifying NPK nutrients [An article from: Environmental Pollution]
Book Details
Author(s)A. Singh, S.B. Agrawal, D. Rathore
PublisherElsevier
ISBN / ASINB000RR3V0W
ISBN-13978B000RR3V03
MarketplaceFrance 🇫🇷
Description
This digital document is a journal article from Environmental Pollution, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Air pollution levels are increasing at an alarming rate in many developing countries, including India and causing a potential threat to crop production. Field experiments were conducted to examine the impact of urban air pollutants on biomass (yield) and some physiological and biochemical parameters of palak (Beta vulgaris L. var. All Green) that grew from germination to maturity at seven periurban sites of Allahabad city having different concentrations of air pollutants under different levels of nutrients. The 6h daily mean NO"2, SO"2 and O"3 concentrations varied from 2.5 to 42.5, 10.6 to 65 and 3.5 to 30.8@mgm^-^3, respectively at different locations. Levels of air pollution showed significant negative correlations with photosynthetic pigments, protein, ascorbic acid and starch contents and catalase activity of palak leaves. A significant negative correlation was found for total biomass with SO"2 (r=-0.92), NO"2 (r=-0.85) and O"3 (r=-0.91) concentrations. The increased fertilizer application (N, P and K) over the recommended dose resulted in a positive response by reducing losses in photosynthetic pigments and total biomass. This study proved that ambient air pollution of Allahabad city is influencing negatively to the growth and yield of palak plants.
Description:
Air pollution levels are increasing at an alarming rate in many developing countries, including India and causing a potential threat to crop production. Field experiments were conducted to examine the impact of urban air pollutants on biomass (yield) and some physiological and biochemical parameters of palak (Beta vulgaris L. var. All Green) that grew from germination to maturity at seven periurban sites of Allahabad city having different concentrations of air pollutants under different levels of nutrients. The 6h daily mean NO"2, SO"2 and O"3 concentrations varied from 2.5 to 42.5, 10.6 to 65 and 3.5 to 30.8@mgm^-^3, respectively at different locations. Levels of air pollution showed significant negative correlations with photosynthetic pigments, protein, ascorbic acid and starch contents and catalase activity of palak leaves. A significant negative correlation was found for total biomass with SO"2 (r=-0.92), NO"2 (r=-0.85) and O"3 (r=-0.91) concentrations. The increased fertilizer application (N, P and K) over the recommended dose resulted in a positive response by reducing losses in photosynthetic pigments and total biomass. This study proved that ambient air pollution of Allahabad city is influencing negatively to the growth and yield of palak plants.
