Claim · model-written summary
Increasing plant density increased seed yield and oil yield.
- Taxon
- sunflower
Helianthus annuuse1 - Treatment
- Increasing plant densitye0
- Outcome
- seed yield, yield of oil from oil‐type sunflowere0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Increasing plant density increased seed yield, yield of oil from oil‐type sunflower, and percentage of medium‐size seeds from confectionery cultivars.”
e1“sunflower ( Helianthus annuus L.)”
Title
Effects of Nitrogen, Phosphorus, and Plant Density on Sunflower1
J. C. Zubriski; D. C. Zimmerman Agronomy Journal 1974. doi:10.2134/agronj1974.00021962006600060024x
Other claims from this paper (12)
- Intervention effect Nitrogen increased seed yield and head size.
- Intervention effect Nitrogen increased oil yield from oil type cultivars.
- Intervention effect Nitrogen increased the percentage of large confectionery seeds.
- Intervention effect Nitrogen reduced oil concentration in oil type seeds.
- Intervention effect Nitrogen reduced the percentage of medium confectionery seeds.
- Intervention effect Yield responded to nitrogen at all locations with low nitrate tests.
- Intervention effect Phosphorus failed to increase seed yield in ten of twelve trials.
- Intervention effect Phosphorus had little effect on confectionery seed size and oil concentration.
- Intervention effect Increasing density raised the percentage of medium confectionery seeds.
- Intervention effect Increasing density reduced head size and the percentage of large confectionery seeds.
- Intervention effect Increasing density increased the percentage of small confectionery seeds.
- Intervention effect Increasing nitrogen decreased the percentage of small confectionery seeds.