Abstract
Abstract Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs. Leaf starch was increased at 1, 3, and 7 day(s) after girdling and largely accounted for corresponding increases in specific leaf weight and decreases in percent moisture, free sugars, and amino nitrogen. Specific leaf weight was increased at 10 days after girdling despite no increase in starch. Amino nitrogen content was decreased 10 days after girdling. When leaf dry weights were corrected for starch, free sugar content was not affected by girdling, and amino nitrogen content was reduced only at 3 and 10 days. The amino nitrogen: free sugar ratio was reduced only at 10 days after girdling. Changes in leaf starch indicated a rapid but reversible effect of girdling on leaf carbohydrate metabolism.
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Claims 9
Claim · model-written summary
Leaf starch increased at 1, 3 and 7 days after petiole girdling by the hopper.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- leavese0
- Treatment
- petiole girdling by threecornered alfalfa hoppere0
- Interactor
- Spissistilus festinus
Spissistilus festinuse0herbivore - Outcome
- Leaf starche1
- Direction
- increasede1
- Qualifier
- 1, 3, and 7 day(s) after girdlinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e1“Leaf starch was increased at 1, 3, and 7 day(s) after girdling and largely accounted for corresponding increases in specific leaf weight and decreases in percent moisture, free sugars, and amino nitrogen”
Claim · model-written summary
Leaf starch largely accounted for the increase in specific leaf weight after girdling.
- Taxon
- soybeanGlycine maxe0
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Compound
- Leaf starche1
- Outcome
- specific leaf weighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e1“Leaf starch was increased at 1, 3, and 7 day(s) after girdling and largely accounted for corresponding increases in specific leaf weight and decreases in percent moisture, free sugars, and amino nitrogen”
Claim · model-written summary
Girdling decreased percent moisture, free sugars and amino nitrogen in soybean leaves.
- Taxon
- soybeanGlycine maxe0
- Treatment
- petiole girdling by threecornered alfalfa hoppere0
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- percent moisture, free sugars, and amino nitrogene1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e1“Leaf starch was increased at 1, 3, and 7 day(s) after girdling and largely accounted for corresponding increases in specific leaf weight and decreases in percent moisture, free sugars, and amino nitrogen”
Claim · model-written summary
Specific leaf weight increased 10 days after girdling despite no increase in starch.
- Taxon
- soybeanGlycine maxe0
- Treatment
- petiole girdling by threecornered alfalfa hoppere0
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- Specific leaf weighte2
- Direction
- increasede2
- Qualifier
- at 10 days after girdlinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e2“Specific leaf weight was increased at 10 days after girdling despite no increase in starch”
Claim · model-written summary
Amino nitrogen content decreased 10 days after girdling.
- Taxon
- soybeanGlycine maxe0
- Treatment
- petiole girdling by threecornered alfalfa hoppere0
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- Amino nitrogen contente3
- Direction
- decreasede3
- Qualifier
- 10 days after girdlinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e3“Amino nitrogen content was decreased 10 days after girdling”
Claim · model-written summary
After correction for starch, free sugar content was not affected by girdling.
- Taxon
- soybeanGlycine maxe0
- Treatment
- girdlinge4
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- free sugar contente4
- Direction
- not affectede4
- Qualifier
- When leaf dry weights were corrected for starche4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e4“When leaf dry weights were corrected for starch, free sugar content was not affected by girdling, and amino nitrogen content was reduced only at 3 and 10 days”
Claim · model-written summary
After correction for starch, amino nitrogen content was reduced only at 3 and 10 days after girdling.
- Taxon
- soybeanGlycine maxe0
- Treatment
- girdlinge4
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- amino nitrogen contente4
- Direction
- reducede4
- Qualifier
- only at 3 and 10 dayse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e4“When leaf dry weights were corrected for starch, free sugar content was not affected by girdling, and amino nitrogen content was reduced only at 3 and 10 days”
Claim · model-written summary
The amino nitrogen to free sugar ratio was reduced only at 10 days after girdling.
- Taxon
- soybeanGlycine maxe0
- Treatment
- girdlinge5
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- amino nitrogen: free sugar ratioe5
- Direction
- reducede5
- Qualifier
- only at 10 days after girdlinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e5“The amino nitrogen: free sugar ratio was reduced only at 10 days after girdling”
Claim · model-written summary
Changes in leaf starch indicated a rapid but reversible effect of girdling on leaf carbohydrate metabolism, as the authors interpret it.
- Taxon
- soybeanGlycine maxe0
- Treatment
- girdlinge6
- Interactor
- Spissistilus festinusSpissistilus festinuse0herbivore
- Outcome
- leaf carbohydrate metabolisme6
- Qualifier
- rapid but reversiblee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight, percent moisture, and free sugar, starch, and amino nitrogen content of soybean ( Glycine max (L.) Merrill) leaves were measured at 1, 3, 7, and 10 day(s) after petiole girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) nymphs”
e6“Changes in leaf starch indicated a rapid but reversible effect of girdling on leaf carbohydrate metabolism”
The same questions in other papers
pruning · Spissistilus festinus · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.