Abstract
SUMMARY Effects of agronomic factors on yield of winter oilseed rape were examined in multifactorial experiments, with a single-low (low erucic acid, high glucosinolate) cultivar (Bienvenu) in 1984/85 to 1987/88 and a double-low (low erucic acid, low glucosinolate) cultivar (Ariana) in 1986/87 to 1988/89. Establishment of September-sown plots was better than that of August-sown plots in 1984, 1987 and 1988, but not in 1985 when September was very dry. The total dry matter (DM) (kg/ha) of August-sown plots was much greater than that of September-sown plots throughout autumn and winter but by harvest the plant DM of late-sown plots was slightly greater. Combine-harvested yields of late-sown plots were greater than those of early-sown plots in 1984/85 (cv. Bienvenu) but not in 1988/89 (cv. Ariana); effects of sowing date on yields were smaller in other seasons, although late-sown plots generally had larger yields. Insecticide treatments increased combine-harvested yields in 1987/88 (cv. Bienvenu) and 1988/89 (cv. Ariana) and increased hand-harvested yields in 1984/85, by increasing the number of plants/m 2 . Fungicide spray treatments increased yields in all years except 1989, by increasing 1000-seed weights. Application of growth regulator sprays increased yields in 1986/87 to 1988/89; effects on cv. Ariana were associated with increased numbers of pods/plant. There were no consistent effects of spring nitrogen rates or timing on yield or yield components.
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Claims 14
Claim · model-written summary
Establishment of September-sown plots was better than that of August-sown plots in 1984, 1987 and 1988
- Taxon
- winter oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- September-sown plotse0
- Outcome
- Establishmente0
- Direction
- bettere0
- Qualifier
- in 1984, 1987 and 1988, but not in 1985 when September was very drye0
- Comparator
- August-sown plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Establishment of September-sown plots was better than that of August-sown plots in 1984, 1987 and 1988, but not in 1985 when September was very dry”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Total dry matter of August-sown plots was much greater than that of September-sown plots throughout autumn and winter
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- August-sown plotse0
- Outcome
- total dry matter (DM) (kg/ha)e0
- Direction
- much greatere0
- Qualifier
- throughout autumn and wintere0
- Comparator
- September-sown plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total dry matter (DM) (kg/ha) of August-sown plots was much greater than that of September-sown plots throughout autumn and winter”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
By harvest the plant dry matter of late-sown plots was slightly greater
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- late-sown plotse0
- Outcome
- plant DMe0
- Direction
- slightly greatere0
- Qualifier
- by harveste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by harvest the plant DM of late-sown plots was slightly greater”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Combine-harvested yields of late-sown plots were greater than those of early-sown plots in 1984/85 for cv. Bienvenu
- Taxon
- winter oilseed rapeBrassica napust0
- Material
- cv. Bienvenue0
- Treatment
- late-sown plotse0
- Outcome
- Combine-harvested yieldse0
- Direction
- greatere0
- Comparator
- early-sown plotse0
- Setting
- 1984/85e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combine-harvested yields of late-sown plots were greater than those of early-sown plots in 1984/85 (cv. Bienvenu) but not in 1988/89 (cv. Ariana)”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Combine-harvested yields of late-sown plots were not greater than those of early-sown plots in 1988/89 for cv. Ariana
- Taxon
- winter oilseed rapeBrassica napust0
- Material
- cv. Arianae0
- Treatment
- late-sown plotse0
- Outcome
- Combine-harvested yieldse0
- Direction
- greatere0
- Comparator
- early-sown plotse0
- Setting
- 1988/89e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combine-harvested yields of late-sown plots were greater than those of early-sown plots in 1984/85 (cv. Bienvenu) but not in 1988/89 (cv. Ariana)”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Late-sown plots generally had larger yields
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- late-sown plotse0
- Outcome
- yieldse0
- Direction
- largere0
- Qualifier
- generallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of sowing date on yields were smaller in other seasons, although late-sown plots generally had larger yields”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Effects of sowing date on yields were smaller in other seasons
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- sowing datee0
- Outcome
- effects of sowing date on yieldse0
- Direction
- smallere0
- Qualifier
- in other seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of sowing date on yields were smaller in other seasons, although late-sown plots generally had larger yields”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Insecticide treatments increased combine-harvested yields of cv. Bienvenu in 1987/88
- Taxon
- winter oilseed rapeBrassica napust0
- Material
- cv. Bienvenue0
- Treatment
- Insecticide treatmentse0
- Outcome
- combine-harvested yieldse0
- Direction
- increasede0
- Setting
- 1987/88e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide treatments increased combine-harvested yields in 1987/88 (cv. Bienvenu) and 1988/89 (cv. Ariana) and increased hand-harvested yields in 1984/85, by increasing the number of plants/m 2”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Insecticide treatments increased combine-harvested yields of cv. Ariana in 1988/89
- Taxon
- winter oilseed rapeBrassica napust0
- Material
- cv. Arianae0
- Treatment
- Insecticide treatmentse0
- Outcome
- combine-harvested yieldse0
- Direction
- increasede0
- Setting
- 1988/89e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide treatments increased combine-harvested yields in 1987/88 (cv. Bienvenu) and 1988/89 (cv. Ariana) and increased hand-harvested yields in 1984/85, by increasing the number of plants/m 2”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Insecticide treatments increased hand-harvested yields in 1984/85 by increasing the number of plants per square metre
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- Insecticide treatmentse0
- Outcome
- hand-harvested yieldse0
- Direction
- increasede0
- Qualifier
- by increasing the number of plants/m 2e0
- Setting
- 1984/85e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide treatments increased combine-harvested yields in 1987/88 (cv. Bienvenu) and 1988/89 (cv. Ariana) and increased hand-harvested yields in 1984/85, by increasing the number of plants/m 2”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Fungicide spray treatments increased yields in all years except 1989 by increasing 1000-seed weights
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- Fungicide spray treatmentse0
- Outcome
- yieldse0
- Direction
- increasede0
- Qualifier
- by increasing 1000-seed weightse0
- Setting
- all years except 1989e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide spray treatments increased yields in all years except 1989, by increasing 1000-seed weights”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Growth regulator sprays increased yields in 1986/87 to 1988/89
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- Application of growth regulator sprayse0
- Outcome
- yieldse0
- Direction
- increasede0
- Setting
- 1986/87 to 1988/89e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of growth regulator sprays increased yields in 1986/87 to 1988/89; effects on cv. Ariana were associated with increased numbers of pods/plant”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Growth regulator effects on cv. Ariana were associated with increased numbers of pods per plant
- Taxon
- winter oilseed rapeBrassica napust0
- Material
- cv. Arianae0
- Treatment
- growth regulator sprayse0
- Outcome
- numbers of pods/plante0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of growth regulator sprays increased yields in 1986/87 to 1988/89; effects on cv. Ariana were associated with increased numbers of pods/plant”
t0“winter oilseed rape (Brassica napus)”
Claim · model-written summary
Spring nitrogen rates or timing had no consistent effect on yield or yield components
- Taxon
- winter oilseed rapeBrassica napust0
- Treatment
- spring nitrogen rates or timinge0
- Outcome
- yield or yield componentse0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no consistent effects of spring nitrogen rates or timing on yield or yield components”
t0“winter oilseed rape (Brassica napus)”
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