Abstract
A 2-year field experiment was conducted under light enrichment and shading conditions to examine the responses of seed yield and yield components distribution across main axis in soybean. The results showed that the maximum increase in seed yield per plant by light enrichment occurred at 27 plants/m2, while the most significant reduction in seed yield per plant by shading occurred at 54 plants/m2. Light enrichment beginning at early flowering stage decreased seed size on average by 7% while shading increased seed size on average by 9% over densities and cultivars, resulting in a fewer extent compensation in seed yield decrement. Responses to light enrichment and shading occurred proportionately across the main axis node positions despite the differences in the time (15-20 days) of development of yield components between the high and low node positions. Variation intensity of seed size of three soybeans was dissimilar as a result of changes in the environment during the reproductive period. The small-seed cultivar had the greatest stability in single seed size across the main axis, followed by moderate-seed cultivar, while large-seed cultivar was the least stable. Although maximum seed size may be determined by genetic potential in soybean plants, our results suggested that seed size can still be modified by environmental conditions, and the impact can be expressed through some internal control moderating the final size of most seeds in main stem and in all pods. It indicates that, through redistributing the available resources across main stem to components, soybean plants showed the mechanism, in an attempt to maintain or improve yield in a constantly changing environment.
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Claims 10
Claim · model-written summary
Light enrichment gave its maximum per-plant seed yield increase at 27 plants/m2.
- Taxon
- soybean
Glycine maxt0 - Treatment
- light enrichmente0
- Outcome
- seed yield per plante0
- Direction
- maximum increasee0
- Value
- 27 plants/m2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum increase in seed yield per plant by light enrichment occurred at 27 plants/m2”
t0“Soybean”
Claim · model-written summary
Shading gave its largest per-plant seed yield reduction at 54 plants/m2.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shadinge0
- Outcome
- seed yield per plante0
- Direction
- reductione0
- Value
- 54 plants/m2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most significant reduction in seed yield per plant by shading occurred at 54 plants/m2.”
t0“Soybean”
Claim · model-written summary
Light enrichment from early flowering decreased seed size by 7% on average.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- early flowering stagee0
- Treatment
- Light enrichmente0
- Outcome
- seed sizee0
- Direction
- decreasede0
- Value
- 7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light enrichment beginning at early flowering stage decreased seed size on average by 7% while shading increased seed size on average by 9% over densities and cultivars”
t0“Soybean”
Claim · model-written summary
Shading increased seed size by 9% on average across densities and cultivars.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shadinge0
- Outcome
- seed sizee0
- Direction
- increasede0
- Value
- 9%e0
- Qualifier
- over densities and cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light enrichment beginning at early flowering stage decreased seed size on average by 7% while shading increased seed size on average by 9% over densities and cultivars”
t0“Soybean”
Claim · model-written summary
Yield component responses to altered light were proportionate across main-axis nodes despite 15-20 days of developmental difference.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- main axis node positionse0
- Outcome
- Responses to light enrichment and shadinge0
- Direction
- proportionatelye0
- Value
- 15-20 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses to light enrichment and shading occurred proportionately across the main axis node positions despite the differences in the time (15-20 days) of development of yield components between the high and low node positions.”
t0“Soybean”
Claim · model-written summary
Seed size variation intensity differed among the three soybeans in the reproductive period.
- Taxon
- soybeansGlycine maxe0
- Organ / stage
- reproductive periode0
- Outcome
- Variation intensity of seed sizee0
- Direction
- dissimilare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variation intensity of seed size of three soybeans was dissimilar as a result of changes in the environment during the reproductive period.”
Claim · model-written summary
Small-seed cultivar had greatest single-seed-size stability, followed by moderate-seed cultivar.
- Taxon
- soybeanGlycine maxt0
- Material
- small-seed cultivare0
- Outcome
- stability in single seed sizee0
- Direction
- greateste0
- Comparator
- moderate-seed cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The small-seed cultivar had the greatest stability in single seed size across the main axis, followed by moderate-seed cultivar, while large-seed cultivar was the least stable.”
t0“Soybean”
Claim · model-written summary
Large-seed cultivar had the least stable seed size across the main axis.
- Taxon
- soybeanGlycine maxt0
- Material
- large-seed cultivare0
- Outcome
- stability in single seed sizee0
- Direction
- least stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The small-seed cultivar had the greatest stability in single seed size across the main axis, followed by moderate-seed cultivar, while large-seed cultivar was the least stable.”
t0“Soybean”
Claim · model-written summary
Authors inferred that environmental conditions can modify soybean seed size despite genetic potential.
- Taxon
- soybeanGlycine maxt0
- Outcome
- seed sizee0
- Setting
- environmental conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“our results suggested that seed size can still be modified by environmental conditions”
t0“Soybean”
Claim · model-written summary
Authors inferred resource redistribution along the main stem as a yield-maintenance mechanism.
- Taxon
- soybeanGlycine maxe0
- Outcome
- maintain or improve yielde0
- Direction
- improvee0
- Qualifier
- redistributing the available resources across main stem to componentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“through redistributing the available resources across main stem to components, soybean plants showed the mechanism, in an attempt to maintain or improve yield in a constantly changing environment.”
The same questions in other papers
shade · yield · Glycine max (soybean)Results differ
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- negative
- no effect
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49 papers in the same direction as this paper · 21 in the opposite direction
- positive
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See all 71 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.