Abstract
Nitrogen-fixing ability (measured by C2H2–C2H4 assay) of greenhouse-grown, vegetative soybean, Glycine max (L.) Merrill, decreased linearly in response to increased levels of defoliation by the soybean looper, Pseudoplusia includens (Walker). Acetylene reduction rate of control plants was 5-fold greater than that of plants with 77% defoliation. This decrease was the result of reduced number, weight, and efficiency (nodule-specific activity) of nodules. Nodule-specific activity was unaffected by defoliation of <47%, but decreased sharply as defoliation exceeded 47%.
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 6
Claim · model-written summary
Soybean nitrogen-fixing ability decreased linearly with increasing soybean looper defoliation.
- Taxon
- Glycine max (L.) Merrill
Glycine maxe0 - Interactor
- Pseudoplusia includens (Walker)
Chrysodeixis includense0herbivore - Outcome
- Nitrogen-fixing abilitye0
- Direction
- decreased linearlye0
- Setting
- greenhouse-growne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing ability (measured by C2H2–C2H4 assay) of greenhouse-grown, vegetative soybean, Glycine max (L.) Merrill, decreased linearly in response to increased levels of defoliation by the soybean looper, Pseudoplusia includens (Walker)”
Claim · model-written summary
Control soybean plants had fivefold greater acetylene reduction than plants with 77% defoliation.
- Taxon
- Glycine max (L.) MerrillGlycine maxe1
- Treatment
- 77% defoliatione0
- Interactor
- Pseudoplusia includens (Walker)Chrysodeixis includense2herbivore
- Outcome
- Acetylene reduction ratee0
- Direction
- greatere0
- Value
- 5-folde0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acetylene reduction rate of control plants was 5-fold greater than that of plants with 77% defoliation”
e1“vegetative soybean, Glycine max (L.) Merrill”
e2“soybean looper, Pseudoplusia includens (Walker)”
Claim · model-written summary
Defoliation reduced soybean nodule number and weight.
- Taxon
- Glycine max (L.) MerrillGlycine maxe2
- Organ / stage
- nodulese0
- Treatment
- defoliatione1
- Interactor
- Pseudoplusia includens (Walker)Chrysodeixis includense1herbivore
- Outcome
- number, weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This decrease was the result of reduced number, weight, and efficiency (nodule-specific activity) of nodules”
e1“defoliation by the soybean looper, Pseudoplusia includens (Walker)”
e2“vegetative soybean, Glycine max (L.) Merrill”
Claim · model-written summary
Defoliation reduced soybean nodule-specific activity.
- Taxon
- Glycine max (L.) MerrillGlycine maxe2
- Organ / stage
- nodulese0
- Treatment
- defoliatione1
- Interactor
- Pseudoplusia includens (Walker)Chrysodeixis includense1herbivore
- Outcome
- nodule-specific activitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced number, weight, and efficiency (nodule-specific activity) of nodules”
e1“defoliation by the soybean looper, Pseudoplusia includens (Walker)”
e2“vegetative soybean, Glycine max (L.) Merrill”
Claim · model-written summary
Nodule-specific activity was unaffected below 47% defoliation.
- Taxon
- Glycine max (L.) MerrillGlycine maxe1
- Treatment
- defoliation of <47%e0
- Interactor
- Pseudoplusia includens (Walker)Chrysodeixis includense2herbivore
- Outcome
- Nodule-specific activitye0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodule-specific activity was unaffected by defoliation of <47%”
e1“vegetative soybean, Glycine max (L.) Merrill”
e2“soybean looper, Pseudoplusia includens (Walker)”
Claim · model-written summary
Nodule-specific activity decreased sharply above 47% defoliation.
- Taxon
- Glycine max (L.) MerrillGlycine maxe2
- Treatment
- defoliation exceeded 47%e0
- Interactor
- Pseudoplusia includens (Walker)Chrysodeixis includense3herbivore
- Outcome
- Nodule-specific activitye1
- Direction
- decreased sharplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased sharply as defoliation exceeded 47%”
e1“Nodule-specific activity was unaffected by defoliation of <47%”
e2“vegetative soybean, Glycine max (L.) Merrill”
e3“soybean looper, Pseudoplusia includens (Walker)”
The same questions in other papers
pruning · Chrysodeixis includens · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 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.