Abstract
Seeding rate and row spacing are management practices that affect flax seed yield. Two experiments were conducted from 1988 to 1990 to determine the influence of flax seeding rates (300, 600, and 900 seeds m −2 ) and row spacings (9, 18, and 27 cm). One was a flax-weed interference study (three sites) and the other was a weed-free study (13 sites). In the presence of weeds, increasing seeding rate from 300 to 900 seeds m −2 improved flax seed yield by 180 kg ha −1 , and reduced broadleaf weed yields by 300 kg ha −1 and grassy weed yields by 180 kg ha −1 . In weed-free conditions, seed yield was not affected by seeding rate. Row spacing did not affect flax yield and had minor effects on weed yields when weeds were not controlled. When weeds were controlled, seed yield in the 9-cm row spacing was 9% (15% in the flax-weed interference study) greater than in the two wider row spacings. Seeding rate and row spacing independently influenced flax yield, and their effect was consistent among sites with weeds present, but was not consistent when weeds were controlled. Our results showed that flax seeding rate was an important component of integrated weed management. Key words: Flax, seeding rate, row spacing, weed interference
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Claims 9
Claim · model-written summary
In the presence of weeds, increasing seeding rate from 300 to 900 seeds m −2 improved flax seed yield by 180 kg ha −1.
- Taxon
- flax
Linum usitatissimume1 - Treatment
- increasing seeding rate from 300 to 900 seeds m −2e1
- Interactor
- weedse1weed
- Outcome
- flax seed yielde1
- Direction
- improvede1
- Value
- 180 kg ha −1e1
- Qualifier
- In the presence of weedse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e1“In the presence of weeds, increasing seeding rate from 300 to 900 seeds m −2 improved flax seed yield by 180 kg ha −1”
Claim · model-written summary
Increasing seeding rate from 300 to 900 seeds m −2 reduced broadleaf weed yields by 300 kg ha −1 when weeds were present.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- increasing seeding rate from 300 to 900 seeds m −2e1
- Interactor
- broadleaf weede5weed
- Outcome
- broadleaf weed yieldse5
- Direction
- reducede5
- Value
- 300 kg ha −1e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e1“In the presence of weeds, increasing seeding rate from 300 to 900 seeds m −2 improved flax seed yield by 180 kg ha −1”
e5“reduced broadleaf weed yields by 300 kg ha −1 and grassy weed yields by 180 kg ha −1”
Claim · model-written summary
Increasing seeding rate from 300 to 900 seeds m −2 reduced grassy weed yields by 180 kg ha −1 when weeds were present.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- increasing seeding rate from 300 to 900 seeds m −2e1
- Interactor
- grassy weede5weed
- Outcome
- grassy weed yieldse5
- Direction
- reducede5
- Value
- 180 kg ha −1e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e1“In the presence of weeds, increasing seeding rate from 300 to 900 seeds m −2 improved flax seed yield by 180 kg ha −1”
e5“reduced broadleaf weed yields by 300 kg ha −1 and grassy weed yields by 180 kg ha −1”
Claim · model-written summary
In weed-free conditions, seeding rate did not affect flax seed yield.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- seeding ratee2
- Outcome
- seed yielde2
- Direction
- not affectede2
- Qualifier
- In weed-free conditionse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e2“In weed-free conditions, seed yield was not affected by seeding rate”
Claim · model-written summary
Row spacing did not affect flax yield.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Row spacinge3
- Outcome
- flax yielde3
- Direction
- did not affecte3
- Qualifier
- when weeds were not controllede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e3“Row spacing did not affect flax yield and had minor effects on weed yields when weeds were not controlled”
Claim · model-written summary
When weeds were controlled, the 9-cm row spacing gave 9% greater seed yield than the two wider row spacings.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- 9-cm row spacinge4
- Outcome
- seed yielde4
- Direction
- greatere4
- Value
- 9%e4
- Qualifier
- When weeds were controllede4
- Comparator
- two wider row spacingse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e4“When weeds were controlled, seed yield in the 9-cm row spacing was 9% (15% in the flax-weed interference study) greater than in the two wider row spacings”
Claim · model-written summary
In the flax-weed interference study, the 9-cm row spacing gave 15% greater seed yield than the two wider row spacings.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- 9-cm row spacinge4
- Outcome
- seed yielde4
- Direction
- greatere4
- Value
- 15%e4
- Comparator
- two wider row spacingse4
- Setting
- flax-weed interference studye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e4“When weeds were controlled, seed yield in the 9-cm row spacing was 9% (15% in the flax-weed interference study) greater than in the two wider row spacings”
Claim · model-written summary
Seeding rate and row spacing independently influenced flax yield, consistently at sites with weeds present but not when weeds were controlled.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Seeding rate and row spacinge6
- Outcome
- flax yielde6
- Qualifier
- consistent among sites with weeds presente6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing are management practices that affect flax seed yield”
e6“Seeding rate and row spacing independently influenced flax yield, and their effect was consistent among sites with weeds present, but was not consistent when weeds were controlled”
Claim · model-written summary
Flax seeding rate is an important component of integrated weed management.
- Taxon
- flaxLinum usitatissimume7
- Outcome
- integrated weed managemente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“flax seeding rate was an important component of integrated weed management”
The same questions in other papers
density · yield · Linum usitatissimum (flax)Positive and negative results
29 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- positive
- positive
41 papers more in this group
See all 45 papers →density · weed · Linum usitatissimum (flax)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.