Paper · 2002 · Chinese Journal of Appplied Environmental Biology

EFFECTS OF SIMULATED ACID RAIN ON FRUIT-SETTING OF LONGAN AND CALCIUM REGULATION

Qiu Dongliang

8
claims
16
verbatim quotes
1
citations
3
research areas
—
Not open access

Abstract

The germination percentage of pollen treated with acid rain of pH 4.5 was 9.38%, lower than that of control,and that of pH 3.5 was 24.23%.Simultaneously,the injury character of pollen was obviously observed when flower was treated with acid rain of pH 3.5. The difference in fruit-setting rate between female flower teated with acid rain of pH 4.0 and the control was significant at P0.05.c (Ca(NO 3) 2 ) of 0.02~ 0.04 mmol/L could promote germination of pollen under the stress of acid rain. The benefit function was lessened when calcium concentration surpassed 0.08 mmol/L.Spraying 2 mmol/L Ca(NO 3) 2 or water could reduce the injury of acid rain to female flower and increase fruit-setting rate significantly. Fig 1, Tab 6, Ref 21

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At pH 4.5, acid rain reduced pollen germination to 9.38% versus control.

Organ / stage
pollene0
Treatment
acid rain of pH 4.5e0
Outcome
germination percentage of pollene0
Direction
lowere0
Value
9.38%e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The germination percentage of pollen treated with acid rain of pH 4.5 was 9.38%, lower than that of control”

✓ located verbatim in the source · abstract, characters 0–107 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

At pH 3.5, acid rain treated pollen had 24.23% germination.

Treatment
pH 3.5e0
Outcome
thate0
Value
24.23%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“that of pH 3.5 was 24.23%”

✓ located verbatim in the source · abstract, characters 112–137 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Acid rain at pH 3.5 visibly injured pollen when flowers were treated.

Treatment
acid rain of pH 3.5e0
Outcome
injury character of pollene0
Direction
injurye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the injury character of pollen was obviously observed when flower was treated with acid rain of pH 3.5”

✓ located verbatim in the source · abstract, characters 153–255 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Acid rain at pH 4.0 significantly changed female flower fruit setting versus control.

Treatment
acid rain of pH 4.0e0
Outcome
fruit-setting ratee0
Comparator
controle0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The difference in fruit-setting rate between female flower teated with acid rain of pH 4.0 and the control was significant at P0.05.”

✓ located verbatim in the source · abstract, characters 257–389 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium nitrate at 0.02 to 0.04 mmol/L promoted pollen germination under acid rain stress.

Treatment
c (Ca(NO 3) 2 ) of 0.02~ 0.04 mmol/Le0
Outcome
germination of pollene0
Direction
promotee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“c (Ca(NO 3) 2 ) of 0.02~ 0.04 mmol/L could promote germination of pollen under the stress of acid rain”

✓ located verbatim in the source · abstract, characters 389–491 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The beneficial effect weakened above a calcium concentration of 0.08 mmol/L.

Outcome
benefit functione0
Direction
lessenede0
Qualifier
calcium concentration surpassed 0.08 mmol/Le0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The benefit function was lessened when calcium concentration surpassed 0.08 mmol/L.”

✓ located verbatim in the source · abstract, characters 493–576 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying 2 mmol/L calcium nitrate reduced acid rain injury to female flowers and significantly increased fruit setting.

Treatment
Spraying 2 mmol/L Ca(NO 3) 2e0
Outcome
injury of acid rain to female flower and increase fruit-setting ratee0
Direction
reducee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying 2 mmol/L Ca(NO 3) 2 or water could reduce the injury of acid rain to female flower and increase fruit-setting rate significantly.”

✓ located verbatim in the source · abstract, characters 576–714 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying water reduced acid rain injury to female flowers and significantly increased fruit setting.

Treatment
watere0
Outcome
fruit-setting ratee0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dimocarpus longan
Dimocarpus longan · TaxonBùi Thụy Đào Nguyên · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying 2 mmol/L Ca(NO 3) 2 or water could reduce the injury of acid rain to female flower and increase fruit-setting rate significantly.”

✓ located verbatim in the source · abstract, characters 576–714 · show in text ↑
t0

“LONGAN”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑

rainfall · crop injury · Dimocarpus longan (longan)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

ph · crop injury · Dimocarpus longan (longan)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

rainfall · growth · Dimocarpus longan (longan)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

ph · growth · Dimocarpus longan (longan)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 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.