Claim · model-written summary
Autumn sowings had higher seed yields.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- autumn sowingse0
- Outcome
- seed yieldse0
- Direction
- highere0
- Comparator
- springe1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“autumn sowings, due to higher seed yields and oil content”
t0“oilseed rape (Brassica napus)”
e1“Spring-sown varieties followed a similar pattern but about a month later”
Title
The effect of sowing date and season on growth and yield of oilseed rape (Brassica napus)
R. K. Scott; E. A. Ogunremi; J. D. Ivins; et al. The Journal of Agricultural Science 1973. doi:10.1017/s0021859600058937
Other claims from this paper (14)
- Intervention effect Autumn sowings gave greater oil yields than spring sowings.
- Intervention effect Autumn sowings had higher oil content.
- Observation Autumn-sown crops flowered in late April or early May.
- Observation Spring-sown varieties followed the autumn developmental pattern about a month later.
- Observation Spring-sown varieties did not reach the autumn peak in pod growth.
- Intervention effect Late-autumn sowing yielded less than early-spring sowing.
- Observation Early September autumn sowing gave about 3 t/ha seed yield.
- Intervention effect Late sowings yielded less than half the early September sowings.
- Intervention effect Oil content declined with delayed sowing from 45% to as low as 38%.
- Intervention effect Delayed sowing restricted growth, leaf area and pod production.
- Intervention effect Delayed sowing slightly affected seed weight.
- Mechanism Frost damage to flower buds appeared to reduce yield from August sowing in one experiment.
- Intervention effect The earliest spring sowing gave the best yields.
- Observation The latest sowing had vigorous but late vegetative growth without high yield.