Abstract
The highly industrialized and densely populated city of Tarapur provides ideal conditions for the study of the effects of urban stresses on plants. Tithonia diversifolia a member of Asteraceae was exposed to five different sites during the dry season of 2011. The transplants were exposed for thirty days. The above grounds phytomass dry weight, shoot length, total chlorophyll content and dust fall were recorded. The readings were compared with a control which was a relatively clean area. The decrease in all the parameters was observed when compared to control. There was a marked seasonal variation in all the parameters. Shoot length and chlorophyll content are more reliable parameters for air quality indication and in identifying Tithonia diversifolia as important indicator species. Urban air quality affects the health of humans, animals, and plants equally. Hence it becomes necessary to monitor the air quality for taking the abatement measures and understanding the effect of air pollutants on living organisms.
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Claims 4
Claim · model-written summary
Exposure sites showed lower phytomass and shoot length than the clean control.
- Taxon
- Tithonia diversifolia
Tithonia diversifoliat0 - Treatment
- exposed to five different sitest1
- Outcome
- phytomass dry weight, shoot lengthe0
- Direction
- decreasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The above grounds phytomass dry weight, shoot length, total chlorophyll content and dust fall were recorded. The readings were compared with a control which was a relatively clean area. The decrease in all the parameters was observed when compared to control.”
t0“Tithonia diversifolia a member of Asteraceae”
t1“exposed to five different sites”
Claim · model-written summary
Total chlorophyll content decreased at exposed sites compared with control.
- Taxon
- Tithonia diversifoliaTithonia diversifoliat0
- Treatment
- exposed to five different sitest1
- Outcome
- total chlorophyll contente0
- Direction
- decreasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total chlorophyll content and dust fall were recorded. The readings were compared with a control which was a relatively clean area. The decrease in all the parameters was observed when compared to control.”
t0“Tithonia diversifolia a member of Asteraceae”
t1“exposed to five different sites”
Claim · model-written summary
Measured parameters showed marked seasonal variation.
- Taxon
- Tithonia diversifoliaTithonia diversifoliat0
- Outcome
- seasonal variation in all the parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a marked seasonal variation in all the parameters.”
t0“Tithonia diversifolia a member of Asteraceae”
Claim · model-written summary
Shoot length and chlorophyll content were judged more reliable for indicating air quality.
- Taxon
- Tithonia diversifoliaTithonia diversifoliae0
- Outcome
- air quality indicatione0
- Direction
- more reliablee0
- Comparator
- parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot length and chlorophyll content are more reliable parameters for air quality indication and in identifying Tithonia diversifolia as important indicator species.”