Abstract
Effects of simulated acid rain (SAR) on growth and development in Brassica campestris L. (rape) were studied. Plants were exposed every two days after tenth day of emergence to 10 mm simulated rain at pH levels of 3.0, 4.0, 5.0, 5.6 and 6.5 (CK). The results indicated that influences on growth and development in rape were highly correlated with pH levels under treatment of acid rain. The impacts mainly depended on the acidity of SAR, and then the time of rape suffered from SAR. The visible symptoms of rape injury were appeared at foliar injury such as chlorosis or necorsis. Acid rain stress can cause plant height dwarf, lengths of stem and root reduce, and fresh and dry weights of edible portions and roots significantly decrease. With increasing acidity of acid rain, the growth and development of rape were remarkably inhibited. Under stress of the weak acid rain, growth of rape was partly stimulated.
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Claims 8
Claim · model-written summary
Growth and development of rape were highly correlated with pH levels under acid rain treatment.
- Taxon
- Brassica campestris L.
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Brassica rapa subsp. oleiferae1 - Treatment
- pH levelse6
- Outcome
- growth and developmente6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Brassica campestris L. (rape)”
e6“influences on growth and development in rape were highly correlated with pH levels under treatment of acid rain”
Claim · model-written summary
The impacts of simulated acid rain on rape mainly depended on the acidity of the rain and on the time the rape was exposed.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- acidity of SARe7
- Outcome
- impactse7
- Qualifier
- the time of rape suffered from SARe7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e7“The impacts mainly depended on the acidity of SAR, and then the time of rape suffered from SAR”
Claim · model-written summary
Rape exposed to simulated acid rain showed visible foliar injury such as chlorosis or necrosis.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Outcome
- foliar injury such as chlorosis or necorsise3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e3“foliar injury such as chlorosis or necorsis”
Claim · model-written summary
Acid rain stress dwarfed plant height in rape compared with the pH 6.5 control.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- Acid rain stresse2
- Outcome
- plant heighte2
- Direction
- dwarfe2
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e2“Acid rain stress can cause plant height dwarf, lengths of stem and root reduce, and fresh and dry weights of edible portions and roots significantly decrease”
e4“Plants were exposed every two days after tenth day of emergence to 10 mm simulated rain at pH levels of 3.0, 4.0, 5.0, 5.6 and 6.5 (CK)”
Claim · model-written summary
Acid rain stress reduced the lengths of stem and root in rape compared with the pH 6.5 control.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- Acid rain stresse2
- Outcome
- lengths of stem and roote2
- Direction
- reducee2
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e2“Acid rain stress can cause plant height dwarf, lengths of stem and root reduce, and fresh and dry weights of edible portions and roots significantly decrease”
e4“Plants were exposed every two days after tenth day of emergence to 10 mm simulated rain at pH levels of 3.0, 4.0, 5.0, 5.6 and 6.5 (CK)”
Claim · model-written summary
Acid rain stress significantly decreased fresh and dry weights of edible portions and roots of rape compared with the pH 6.5 control.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- Acid rain stresse2
- Outcome
- fresh and dry weights of edible portions and rootse2
- Direction
- significantly decreasee2
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e2“Acid rain stress can cause plant height dwarf, lengths of stem and root reduce, and fresh and dry weights of edible portions and roots significantly decrease”
e4“Plants were exposed every two days after tenth day of emergence to 10 mm simulated rain at pH levels of 3.0, 4.0, 5.0, 5.6 and 6.5 (CK)”
Claim · model-written summary
Growth and development of rape were inhibited more strongly as the acidity of acid rain increased.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- increasing acidity of acid raine0
- Outcome
- growth and developmente0
- Direction
- inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e0“With increasing acidity of acid rain, the growth and development of rape were remarkably inhibited”
Claim · model-written summary
Weak acid rain partly stimulated growth of rape compared with the pH 6.5 control.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- weak acid raine5
- Outcome
- growth of rapee5
- Direction
- stimulatede5
- Qualifier
- partlye5
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brassica campestris L. (rape)”
e4“Plants were exposed every two days after tenth day of emergence to 10 mm simulated rain at pH levels of 3.0, 4.0, 5.0, 5.6 and 6.5 (CK)”
e5“Under stress of the weak acid rain, growth of rape was partly stimulated”
The same questions in other papers
rainfall · growth · Brassica rapa (field mustard)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
1 paper more in this group
See all 5 papers →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.