Abstract
The influence of nematodes on nodulation of soybean varied according to their modes of parasitism. In the greenhouse, nodule formation was stimulated by the endoparasites, Meloidogyne hapla and Pratylenchus penetrans, but was inhibited slightly by the ectoparasite, Belonolaimus longicaudatus. In an experiment under controlled conditions in a phytotron, Heterodera glycines severely inhibited nodule formation, whereas plants inoculated with B. longicaudatus and P. penetrans had more nodules per g root than nematode-free plants. Nitrogen-fixing capacity, however, was inhibited by all three nematode species. Different light sources used in the phytotron experiment also influenced growth and nodulation of soybean. A fluorescent plus incandescent light regime resulted in plants with the greatest shoot weight, pod number, and nodules per g root. Plants grown under Lucalox lamps had excessive stem elongation.
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Claims 9
Claim · model-written summary
Meloidogyne hapla stimulated nodule formation in soybean in the greenhouse.
- Taxon
- soybean
Glycine maxt0 - Treatment
- endoparasitese1
- Interactor
- Meloidogyne hapla
Meloidogyne haplae1pest - Outcome
- nodule formatione1
- Direction
- stimulatede1
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e1“In the greenhouse, nodule formation was stimulated by the endoparasites, Meloidogyne hapla and Pratylenchus penetrans, but was inhibited slightly by the ectoparasite, Belonolaimus longicaudatus”
Claim · model-written summary
Pratylenchus penetrans stimulated nodule formation in soybean in the greenhouse.
- Taxon
- soybeanGlycine maxt0
- Treatment
- endoparasitese1
- Interactor
- Pratylenchus penetrans
Pratylenchus penetranse1pest - Outcome
- nodule formatione1
- Direction
- stimulatede1
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e1“In the greenhouse, nodule formation was stimulated by the endoparasites, Meloidogyne hapla and Pratylenchus penetrans, but was inhibited slightly by the ectoparasite, Belonolaimus longicaudatus”
Claim · model-written summary
Belonolaimus longicaudatus inhibited nodule formation in soybean slightly in the greenhouse.
- Taxon
- soybeanGlycine maxt0
- Treatment
- ectoparasitee1
- Interactor
- Belonolaimus longicaudatusBelonolaimus longicaudatuse1pest
- Outcome
- nodule formatione1
- Direction
- inhibitede1
- Qualifier
- slightlye1
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e1“In the greenhouse, nodule formation was stimulated by the endoparasites, Meloidogyne hapla and Pratylenchus penetrans, but was inhibited slightly by the ectoparasite, Belonolaimus longicaudatus”
Claim · model-written summary
Heterodera glycines severely inhibited nodule formation in soybean in a phytotron.
- Taxon
- soybeanGlycine maxt0
- Interactor
- Heterodera glycines
Heterodera glycinese2pest - Outcome
- nodule formatione2
- Direction
- inhibitede2
- Qualifier
- severelye2
- Setting
- phytotrone2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e2“In an experiment under controlled conditions in a phytotron, Heterodera glycines severely inhibited nodule formation”
Claim · model-written summary
Plants inoculated with Belonolaimus longicaudatus had more nodules per gram of root than nematode-free plants.
- Taxon
- soybeanGlycine maxt0
- Interactor
- B. longicaudatusBelonolaimus longicaudatuse3pest
- Outcome
- nodules per g roote3
- Direction
- moree3
- Comparator
- nematode-free plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e3“whereas plants inoculated with B. longicaudatus and P. penetrans had more nodules per g root than nematode-free plants”
Claim · model-written summary
Plants inoculated with Pratylenchus penetrans had more nodules per gram of root than nematode-free plants.
- Taxon
- soybeanGlycine maxt0
- Interactor
- P. penetransPratylenchus penetranse3pest
- Outcome
- nodules per g roote3
- Direction
- moree3
- Comparator
- nematode-free plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e3“whereas plants inoculated with B. longicaudatus and P. penetrans had more nodules per g root than nematode-free plants”
Claim · model-written summary
All three nematode species inhibited nitrogen-fixing capacity in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- all three nematode speciese4
- Outcome
- Nitrogen-fixing capacitye4
- Direction
- inhibitede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e4“Nitrogen-fixing capacity, however, was inhibited by all three nematode species”
Claim · model-written summary
A fluorescent plus incandescent light regime gave soybean plants the greatest shoot weight, pod number and nodules per gram of root.
- Taxon
- soybeanGlycine maxt0
- Treatment
- fluorescent plus incandescent light regimee5
- Outcome
- shoot weight, pod number, and nodules per g roote5
- Direction
- greateste5
- Setting
- phytotrone7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e5“A fluorescent plus incandescent light regime resulted in plants with the greatest shoot weight, pod number, and nodules per g root”
e7“Different light sources used in the phytotron experiment”
Claim · model-written summary
Lucalox lamps caused excessive stem elongation in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Lucalox lampse6
- Outcome
- stem elongatione6
- Direction
- excessivee6
- Setting
- phytotrone7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e6“Plants grown under Lucalox lamps had excessive stem elongation”
e7“Different light sources used in the phytotron experiment”
The same questions in other papers
light · symbiosis · Glycine max (soybean)Results differ
6 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- no effect
11 papers more in this group
See all 15 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.