Claim · model-written summary
Increasing seeding density from 250 to 550 seeds per square metre raised average yield by 9% in zones 2 and 3.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- seeding density from 250 to 550 seeds m −2e0
- Outcome
- average yielde0
- Direction
- gaine0
- Value
- 9%e0
- Setting
- zones 2 and 3e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“An increase in seeding density from 250 to 550 seeds m −2 led to an average yield gain of 9% in zones 2 and 3”
t0“winter wheat”
Title
Determination of optimal sowing dates and densities of winter wheat under Quebec growing conditions
Francis Allard; Anne Vanasse; Denis Pageau; et al. Canadian Journal of Plant Science 2018. doi:10.1139/cjps-2018-0165
Other claims from this paper (11)
- Observation In the first year, wheat survived at two of four sites at rates of 82%–100%.
- Observation In the second year, all sites showed wheat survival rates of 69%–99%.
- Intervention effect In zone 2, early sowing had higher winter survival than later sowing.
- Intervention effect Sowing date had no effect on winter survival in zones 1 and 3.
- Intervention effect Seeding density had no effect on winter survival in zones 1 and 3.
- Observation Maximum yield in zone 1 occurred with mid- to late September sowing.
- Observation Maximum yield in zone 2 occurred with early to mid September sowing.
- Observation Maximum yield in zone 3 occurred with mid August to mid September sowing.
- Intervention effect Increasing seeding density produced no yield gain in zone 1.
- Association Winter survival rates differ between wheat cultivars.
- Association Yield differs between wheat cultivars.