Claim · model-written summary
At the highest P level, nodules made up 61% of root dry weight in N-fixing soybean.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- highest P level (2.0 µ/ml)e0
- Outcome
- root dry weighte0
- Value
- 61%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodule dry weight of N‐fixing plants grown at the highest P level (2.0 µ/ml) comprised 9% of total plant dry weight and 61% of root dry weight of 35‐day‐old soybeans”
Title
K. G. Cassman; A. S. Whitney; K. R. Stockinger Crop Science 1980. doi:10.2135/cropsci1980.0011183x002000020022x
Other claims from this paper (9)
- Observation At the highest P level, nodules made up 9% of total dry weight in N-fixing soybean.
- Intervention effect Reduced P supply inhibited nodule growth more than root or shoot growth.
- Intervention effect Under supplied N, reduced P affected shoot growth more than nodule or root growth.
- Observation At intermediate P levels, the root plus nodule share of total plant dry weight was similar for N-fixing and N-supplied plants.
- Observation The root share of plant dry weight was lower in N-fixing than N-supplied plants at all P levels.
- Association Nodule mass and total root length had an inverse relationship.
- Observation First-order lateral root numbers were equal in nodulated and nonnodulated plants.
- Mechanism The authors infer two dry matter partitioning equilibria in N-fixing soybean.
- Observation P stress affected root-nodule balance more than aboveground-belowground partitioning.