Effects of ozone phytotoxicity in reducing the yield and nutritional quality of chilli (Capsicum annuum L.)

This study was designed to assess the effects of tropospheric ozone (O 3 ) on the yield and nutritional quality of chilli ( Capsicum annuum L. cv. Pusa Jwala) using ethylene diurea (EDU) under field conditions in Peshawar, Pakistan. Average O 3 concentration ranged between 38 and 68 ppb which is hig...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-02, Vol.28 (7), p.8889-8897
Main Authors: Khan, Sehrish, Nazneen, Shahla, Khan, Sardar, Ali, Neelum
Format: Article
Language:English
Subjects:
Agricultural production
Air Pollutants
Air pollution
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biomass
Capsicum
Capsicum annuum
Crop yield
Crops
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Flowers
Fruits
Nutritive Value
Ozone
Pakistan
Parameters
Peppers
Phytotoxicity
Plant species
Pollutants
Research Article
Suburban areas
Troposphere
Waste Water Technology
Water Management
Water Pollution Control
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Summary:This study was designed to assess the effects of tropospheric ozone (O 3 ) on the yield and nutritional quality of chilli ( Capsicum annuum L. cv. Pusa Jwala) using ethylene diurea (EDU) under field conditions in Peshawar, Pakistan. Average O 3 concentration ranged between 38 and 68 ppb which is high enough to cause phytotoxic effects. Accumulated ozone exposure over a threshold of 40 ppm h (AOT40) value calculated for 3-month period was found to be substantially higher, i.e., 7.3 ppm h. Various growth and yield parameters analyzed on weekly basis showed that the plant height (6.3%), number of flowers (15%), fruits (36%), and total dry biomass (30%) and its nutritional quality parameters such as mean crude protein, fat, and fiber showed 24%, 100%, and 12% better results in EDU-treated plants as compared with control, respectively. However, mineral contents showed no significant difference ( p < 0.05) for both the groups. The results of this study concluded that ambient O 3 is a threat to the selected plant species thus affecting its quality and yield and EDU remains successful in protecting the chilli ( Capsicum annuum L.) against the negative effects of tropospheric ozone .
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-11139-7