Abstract
The habitus of oilseed rape and its yield component values can be strongly affected by the structure of its stand. Field experiments took place in Central Bohemia in years 2013-2015 aiming at determining the influence of row-spacing (12.5, 25, 35 and 45 cm) on the yield components. Chosen parameters (the number of plants per unit area, the number of pods per plant, the number of seeds per pod and yield) were evaluated at the monitored stands (30 seeds/m2 sowing rate, cv. DK Exquisite). The study confirmed the statistical significance of the influence of row-spacing on some winter oilseed rape yield components. Widening of the row-spacing has led to a decrease in the number of pods per plant and the number of plants per unit area and an increase in the number of seeds per pod parameter. 1000 seed weight was not affected. This study did not confirm a positive effect of sowing oilseed rape in rows wider than 12.5 cm. Therefore, such an agronomical decision cannot be recommended as a way to achieve higher seed yield.
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Claims 6
Claim · model-written summary
Wider rows decreased the number of pods per plant in winter oilseed rape.
- Taxon
- winter oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- Widening of the row-spacinge0
- Outcome
- number of pods per plante0
- Direction
- decreasee0
- Comparator
- 12.5 cme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Widening of the row-spacing has led to a decrease in the number of pods per plant and the number of plants per unit area and an increase in the number of seeds per pod parameter.”
e1“rows wider than 12.5 cm”
t0“winter oilseed rape”
Claim · model-written summary
Wider rows decreased the number of plants per unit area in winter oilseed rape.
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- Widening of the row-spacinge0
- Outcome
- number of plants per unit areae0
- Direction
- decreasee0
- Comparator
- 12.5 cme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Widening of the row-spacing has led to a decrease in the number of pods per plant and the number of plants per unit area and an increase in the number of seeds per pod parameter.”
e1“rows wider than 12.5 cm”
t0“winter oilseed rape”
Claim · model-written summary
Wider rows increased the number of seeds per pod in winter oilseed rape.
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- Widening of the row-spacinge0
- Outcome
- number of seeds per pode0
- Direction
- increasee0
- Comparator
- 12.5 cme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Widening of the row-spacing has led to a decrease in the number of pods per plant and the number of plants per unit area and an increase in the number of seeds per pod parameter.”
e1“rows wider than 12.5 cm”
t0“winter oilseed rape”
Claim · model-written summary
Row spacing did not affect 1000 seed weight.
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- row-spacinge1
- Outcome
- 1000 seed weighte0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1000 seed weight was not affected.”
e1“row-spacing (12.5, 25, 35 and 45 cm)”
t0“winter oilseed rape”
Claim · model-written summary
Rows wider than 12.5 cm did not improve seed yield.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- rows wider than 12.5 cme0
- Outcome
- seed yielde1
- Direction
- did not confirm a positive effecte0
- Comparator
- 12.5 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study did not confirm a positive effect of sowing oilseed rape in rows wider than 12.5 cm.”
e1“higher seed yield”
Claim · model-written summary
The authors advise against using wider rows to increase seed yield.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- rows wider than 12.5 cme1
- Outcome
- cannot be recommended as a way to achieve higher seed yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, such an agronomical decision cannot be recommended as a way to achieve higher seed yield.”
e1“sowing oilseed rape in rows wider than 12.5 cm”
The same questions in other papers
density · yield · Brassica napus (oilseed rape)Positive and negative results
53 papers in the same direction as this paper · 29 in the opposite direction · 3 reporting no difference from an alternative
- negative
- positive
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82 papers more in this group
See all 86 papers →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.