Paper · 2021 · Applied Sciences

Impact of Biochar Application on Germination Behavior and Early Growth of Maize Seedlings: Insights from a Growth Room Experiment

Liaqat Ali; Wang Xiukang; Muhammad Naveed; et al.

12
claims
26
verbatim quotes
57
citations
1
research areas
✓
Open access · cc-by

Abstract

Reduced germination and early crop maturity due to soil compaction, nutrients stress, and low moisture are major constraints to achieve optimum crop yield, ultimately resulting in significant economic damages and food shortages. Biochar, having the potential to improve physical and chemical properties of soil, can also improve nutrients and moisture access to plants. In the present study, a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes. Corn cob biochar (CCB) was mixed with soil at different rates (0.5%, 1%, 1.5%, 2%, 2.5%, and 3% w/w) before seed sowing. Results obtained showed that increasing CCB application rate have neutral to positive effects on seed germination and seedling growth of maize. Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment. In addition to this, it also improved germination rate (GR) by 3% as compared to control treatment, while causing a reduction in mean emergence time (MET). Moreover, application of biochar (3%) also resulted in enhancement of antioxidant enzyme activity, particularly superoxide dismutase (SOD) and catalase (CAT) by 13% and 17%, respectively. Conclusively, biochar application is an attractive approach to improve the initial phase of plant growth and provide better crop stand and essential sustainable high yields.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 12

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize shoot dry biomass by 40% relative to un-amended control.

Taxon
maizeZea mayse0
Organ / stage
shoote1
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
shoot dry biomasse1
Direction
increasede1
Value
40%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize root dry biomass by 32% relative to un-amended control.

Taxon
maizeZea mayse0
Organ / stage
roote1
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
root dry biomasse1
Direction
increasede1
Value
32%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize total chlorophyll content by 55% relative to un-amended control.

Taxon
maizeZea mayse0
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
total chlorophyll content (a and b)e1
Direction
increasede1
Value
55%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize germination percentage by 13% relative to un-amended control.

Taxon
maizeZea mayse0
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
germination percentagee1
Direction
increasede1
Value
13%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize seedling vigor by 85% relative to un-amended control.

Taxon
maizeZea mayse0
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
seedling vigore1
Direction
increasede1
Value
85%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar at 1.5% significantly increased maize relative water content by 68% relative to un-amended control.

Taxon
maizeZea mayse0
Treatment
Biochar addition at the rate of 1.5% (w/w)e1
Outcome
relative water content (RWC)e1
Direction
increasede1
Value
68%e1
Comparator
un-amended control treatmente1
Setting
growth roome0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar addition improved maize germination rate by 3% compared with control.

Taxon
maizeZea mayse0
Treatment
Biochar additione1
Outcome
germination rate (GR)e2
Direction
improvede2
Value
3%e2
Comparator
control treatmente2

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
e2

“it also improved germination rate (GR) by 3% as compared to control treatment, while causing a reduction in mean emergence time (MET)”

✓ located verbatim in the source · abstract, characters 1131–1264 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Biochar addition caused a reduction in maize mean emergence time compared with control.

Taxon
maizeZea mayse0
Treatment
Biochar additione1
Outcome
mean emergence time (MET)e2
Direction
reductione2
Comparator
control treatmente2

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e1

“Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment”

✓ located verbatim in the source · abstract, characters 812–1108 · show in text ↑
e2

“it also improved germination rate (GR) by 3% as compared to control treatment, while causing a reduction in mean emergence time (MET)”

✓ located verbatim in the source · abstract, characters 1131–1264 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar application at 3% increased maize superoxide dismutase activity by 13%.

Taxon
maizeZea mayse0
Treatment
application of biochar (3%)e3
Gene
superoxide dismutase (SOD)e3
Outcome
antioxidant enzyme activitye3
Direction
enhancemente3
Value
13%e3

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e3

“application of biochar (3%) also resulted in enhancement of antioxidant enzyme activity, particularly superoxide dismutase (SOD) and catalase (CAT) by 13% and 17%, respectively”

✓ located verbatim in the source · abstract, characters 1276–1452 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar application at 3% increased maize catalase activity by 17%.

Taxon
maizeZea mayse0
Treatment
application of biochar (3%)e3
Gene
catalase (CAT)e3
Outcome
antioxidant enzyme activitye3
Direction
enhancemente3
Value
17%e3

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e3

“application of biochar (3%) also resulted in enhancement of antioxidant enzyme activity, particularly superoxide dismutase (SOD) and catalase (CAT) by 13% and 17%, respectively”

✓ located verbatim in the source · abstract, characters 1276–1452 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Increasing corn cob biochar application rate had neutral to positive effects on maize seed germination and seedling growth.

Taxon
maizeZea mayse0
Treatment
increasing CCB application ratee4
Outcome
seed germination and seedling growthe4
Direction
neutral to positivee4

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e4

“increasing CCB application rate have neutral to positive effects on seed germination and seedling growth of maize”

✓ located verbatim in the source · abstract, characters 697–810 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Biochar application is recommended as an attractive approach to improve the initial phase of maize growth and crop stand.

Taxon
maizeZea mayse0
Treatment
biochar applicatione5
Outcome
initial phase of plant growthe5

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes”

✓ located verbatim in the source · abstract, characters 392–545 · show in text ↑
e5

“biochar application is an attractive approach to improve the initial phase of plant growth and provide better crop stand and essential sustainable high yields”

✓ located verbatim in the source · abstract, characters 1468–1626 · show in text ↑

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190 papers: 180 positive, 10 negative or no effect

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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.