Abstract
In the present study, pot experiments were carried out to observe the effects of simulated acid rain (pH 5.5, 5.0 and 4.5) exposures on papaya and castor plants. All levels of pH affected adversely to all growth parameters (length, fresh and dry weight of root and shoot) of both plants. The yellowing, injuries and necrotic symptoms were observed on papaya. All plant growth parameters were significantly suppressed by all the pH levels. The reductions in parameters were concentration dependent. Highest reductions in all plant growth parameters were observed in 4.5 pH treatment. The papaya was found more susceptible than castor.
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Claims 5
Claim · model-written summary
Simulated acid rain suppressed papaya root and shoot length and fresh and dry weight at all tested pH levels.
- Taxon
- Papaya
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=60)
Carica papayat0 - Treatment
- simulated acid rain (pH 5.5, 5.0 and 4.5)e2
- Outcome
- length, fresh and dry weight of root and shoote0
- Direction
- suppressede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=500)
Verbatim
e0“All levels of pH affected adversely to all growth parameters (length, fresh and dry weight of root and shoot) of both plants.”
e1“All plant growth parameters were significantly suppressed by all the pH levels.”
t0“Papaya (Carica papaya)”
e2“simulated acid rain (pH 5.5, 5.0 and 4.5) exposures”
Claim · model-written summary
Simulated acid rain suppressed castor root and shoot length and fresh and dry weight at all tested pH levels.
- Taxon
- Castor
Ricinus communist0 - Treatment
- simulated acid rain (pH 5.5, 5.0 and 4.5)e2
- Outcome
- length, fresh and dry weight of root and shoote0
- Direction
- suppressede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All levels of pH affected adversely to all growth parameters (length, fresh and dry weight of root and shoot) of both plants.”
e1“All plant growth parameters were significantly suppressed by all the pH levels.”
t0“Castor (Ricinus communis)”
e2“simulated acid rain (pH 5.5, 5.0 and 4.5) exposures”
Claim · model-written summary
Papaya showed yellowing, injuries and necrotic symptoms after acid rain exposure.
- Taxon
- papayaCarica papayae0
- Treatment
- simulated acid raine1
- Outcome
- yellowing, injuries and necrotic symptomse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yellowing, injuries and necrotic symptoms were observed on papaya.”
e1“simulated acid rain (pH 5.5, 5.0 and 4.5) exposures”
Claim · model-written summary
Growth reductions in papaya and castor depended on acid rain concentration, with the greatest reductions at pH 4.5.
- Taxon
- papaya and castor plantsCarica papayaRicinus communise1
- Treatment
- 4.5 pH treatmente0
- Outcome
- all plant growth parameterse0
- Direction
- Highest reductionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reductions in parameters were concentration dependent. Highest reductions in all plant growth parameters were observed in 4.5 pH treatment.”
e1“papaya and castor plants”
Claim · model-written summary
Papaya was more susceptible to simulated acid rain than castor.
- Taxon
- papayaCarica papayae0
- Outcome
- susceptiblee0
- Direction
- more susceptiblee0
- Comparator
- castore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The papaya was found more susceptible than castor.”
The same questions in other papers
rainfall · growth · Ricinus communis (castor bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
ph · growth · Ricinus communis (castor bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
ph · growth · Carica papaya (papaya)Results agree
3 papers in the same direction as this paper
- negative
- no effect
- no effect
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.