Paper · 2012 · Heilongjiang nongye kexue

Effect of Different Density on the Soybean Physiological Characteristics

Shizhong Zhang

11
claims
35
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

For the purpose of defining reasonable density,the effect of different density on the soybean physiological characteristics with Changnong 18 as test materials was studied.The results showed that chlorophyll content changes were all increasing at first and then decreasing,photosynthetic rate present diauxie curve changes,appeared twice photosynthetic peak values.Transpiration rate and stomatal conductance value from the maximum of V4 period gradually reduced to the minimum of R7.The accumulation of dry matter yield presented a S shape curve change,and at R7 reached maximum.The effect of planting density on the chlorophyll content was as follows:from V4 to R7 period showed obvious difference,chlorophyll content of low density was higher than that of high density,in a certain density range,with the increase of planting density,photosynthetic rate reduced,the intercellular CO2 concentration increased,group leaf area index increased,the accumulation of dry matter yield decreased.The transpiration rate and stomatal conductance change trend were the same,with the reduction of planting density,transpiration rate rised and stomatal conductance got big.

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Claims 11

Observationobservedoriginal resultmeasured

Claim · model-written summary

Chlorophyll content first increased and then decreased in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Outcome
chlorophyll contente2
Direction
increasing at first and then decreasinge2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e2

“chlorophyll content changes were all increasing at first and then decreasing”

✓ located verbatim in the source · abstract, characters 196–272 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Photosynthetic rate showed a diauxie curve with two peaks in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Outcome
photosynthetic ratee3
Qualifier
appeared twice photosynthetic peak valuese3

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e3

“photosynthetic rate present diauxie curve changes,appeared twice photosynthetic peak values”

✓ located verbatim in the source · abstract, characters 273–364 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Transpiration rate and stomatal conductance gradually decreased from the V4 maximum to the R7 minimum.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Outcome
Transpiration rate and stomatal conductance valuee4
Direction
gradually reducede4

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e4

“Transpiration rate and stomatal conductance value from the maximum of V4 period gradually reduced to the minimum of R7”

✓ located verbatim in the source · abstract, characters 365–483 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dry matter yield accumulation followed an S-shaped curve and reached its maximum at R7.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Outcome
accumulation of dry matter yielde5
Direction
reached maximume5

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e5

“The accumulation of dry matter yield presented a S shape curve change,and at R7 reached maximum”

✓ located verbatim in the source · abstract, characters 484–579 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Low planting density gave higher chlorophyll content than high density from V4 to R7.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
planting densitye6
Outcome
chlorophyll contente6
Direction
highere6
Comparator
high densitye6

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e6

“The effect of planting density on the chlorophyll content was as follows:from V4 to R7 period showed obvious difference,chlorophyll content of low density was higher than that of high density”

✓ located verbatim in the source · abstract, characters 580–771 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing planting density reduced photosynthetic rate in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the increase of planting densitye7
Outcome
photosynthetic ratee7
Direction
reducede7

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e7

“with the increase of planting density,photosynthetic rate reduced,the intercellular CO2 concentration increased”

✓ located verbatim in the source · abstract, characters 799–910 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing planting density increased intercellular CO2 concentration in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the increase of planting densitye7
Outcome
the intercellular CO2 concentratione7
Direction
increasede7

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e7

“with the increase of planting density,photosynthetic rate reduced,the intercellular CO2 concentration increased”

✓ located verbatim in the source · abstract, characters 799–910 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing planting density increased group leaf area index in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the increase of planting densitye7
Outcome
group leaf area indexe0
Direction
increasede0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e7

“with the increase of planting density,photosynthetic rate reduced,the intercellular CO2 concentration increased”

✓ located verbatim in the source · abstract, characters 799–910 · show in text ↑
e0

“group leaf area index increased”

✓ located verbatim in the source · abstract, characters 911–942 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing planting density decreased dry matter yield accumulation in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the increase of planting densitye7
Outcome
the accumulation of dry matter yielde0
Direction
decreasede0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e7

“with the increase of planting density,photosynthetic rate reduced,the intercellular CO2 concentration increased”

✓ located verbatim in the source · abstract, characters 799–910 · show in text ↑
e0

“the accumulation of dry matter yield decreased”

✓ located verbatim in the source · abstract, characters 943–989 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Reducing planting density increased transpiration rate in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the reduction of planting densitye0
Outcome
transpiration ratee0
Direction
risede0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e0

“with the reduction of planting density,transpiration rate rised and stomatal conductance got big”

✓ located verbatim in the source · abstract, characters 1065–1161 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Reducing planting density increased stomatal conductance in soybean.

Taxon
SoybeanGlycine maxt0
Material
Changnong 18e1
Treatment
the reduction of planting densitye0
Outcome
stomatal conductancee0
Direction
got bige0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effect of Different Density on the Soybean Physiological Characteristics”

✓ located verbatim in the source · title, characters 0–72 · show in text ↑
e1

“with Changnong 18 as test materials”

✓ located verbatim in the source · abstract, characters 124–159 · show in text ↑
e0

“with the reduction of planting density,transpiration rate rised and stomatal conductance got big”

✓ located verbatim in the source · abstract, characters 1065–1161 · show in text ↑

density · physiology: photosynthesis · Glycine max (soybean)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

5 in the opposite direction

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

density · yield · Glycine max (soybean)Positive and negative results

305 papers: 207 positive, 98 negative or no effect

97 papers in the same direction as this paper · 207 in the opposite direction

  1. positive
  2. positive
  3. positive

301 papers more in this group

See all 305 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.