Claim · model-written summary
Higher density increased main stem length.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Increase in PPD up to 38 plants m −2e0
- Outcome
- main stem lengthe0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Increase in PPD up to 38 plants m −2 increased main stem length and decreased all other plant components.”
t0“Soybean”
Title
Plant Population Density and Row Spacing Effects on Soybean at Post‐Optimal Planting Dates
D. J. Boquet Agronomy Journal 1990. doi:10.2134/agronj1990.00021962008200010013x
Other claims from this paper (11)
- Intervention effect Narrow rows yielded more than wide rows.
- Intervention effect June planting yielded more than July planting.
- Observation June planting with 0.5 m rows yielded 2.99 Mg per hectare at density 38.
- Observation June planting with 1.0 m rows yielded 1.97 Mg per hectare at density 13.
- Observation July planting with 0.5 m rows yielded 2.45 Mg per hectare at density 51.
- Observation July planting with 1.0 m rows yielded 1.53 Mg per hectare at density 26.
- Intervention effect Higher density decreased other plant components.
- Intervention effect Higher density produced a net yield gain from main stems.
- Intervention effect Higher density produced a net branch stem yield loss.
- Recommendation Higher density was necessary for maximum late planted yield at narrow spacing.
- Observation Wide rows had much lower yield and lower responsiveness to density.