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“decrease in density”

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Organism: Brassica napus ✕

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High plant density produced a decrease in chlorophyll content relative to low density.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: high plant density (HPD)e0
Outcome: chlorophyll contente0
Direction: decreasee0
Comparator: low plant density (LPD)e0

Verbatim

e0
“a rapid decrease in the green leaf area index (GLAI) and chlorophyll content and a remarkable increase in malondialdehyde content in high plant density (HPD) population than did the low plant density (LPD) population”
✓ located verbatim in the source · abstract, characters 444–660

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in green leaf area index relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root length.
Intervention effect High density decreased root tips.
Intervention effect High density decreased root surface area.
Intervention effect High density decreased root volume.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High plant density produced a decrease in green leaf area index relative to low density.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: high plant density (HPD)e0
Outcome: green leaf area indexe0
Direction: decreasee0
Comparator: low plant density (LPD)e0

Verbatim

e0
“a rapid decrease in the green leaf area index (GLAI) and chlorophyll content and a remarkable increase in malondialdehyde content in high plant density (HPD) population than did the low plant density (LPD) population”
✓ located verbatim in the source · abstract, characters 444–660

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in chlorophyll content relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root length.
Intervention effect High density decreased root tips.
Intervention effect High density decreased root surface area.
Intervention effect High density decreased root volume.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UAN decreased canola stand density to a similar extent as urea.

Taxon: canolaBrassica napus var. napust0
Treatment: UANe1
Outcome: stand densitye1
Direction: Decreasee1
Comparator: urea applicatione1

Verbatim

e1
“Decrease in stand density with UAN was similar to that resulting from urea application”
✓ located verbatim in the source · abstract, characters 545–631

t0
“Canola Emergence and Yield”
✓ located verbatim in the source · title, characters 52–78

Title

Nitrogen Fertilizer and Urease Inhibitor Effects on Canola Emergence and Yield in a One‐Pass Seeding and Fertilizing System

C. A. Grant; D. A. Derksen; D. McLaren; et al. Agronomy Journal 2010. doi:10.2134/agronj2010.0008

Other claims from this paper (10)

Association Seedling damage in canola increased with increasing rates of urea or UAN fertilizer side-banded near the seed row.
Intervention effect NBPT decreased seedling damage in canola from urea and UAN fertilizer.
Association Dry matter yield at flowering was rarely affected by seedling damage in canola.
Intervention effect NBPT increased canola seed yield at high N rates in three of six site-years.
Intervention effect NBPT decreased canola seed yield at one site-year.
Association Chlorophyll concentration in canola seed increased as stand density decreased.
Association Seedling damage had a negative effect on maturity and seed quality of canola.
Recommendation Caution is advised to keep seed and fertilizer separated and to avoid exceeding safe N rates when fertilizer is banded near the seed row.
Recommendation NBPT can reduce the risk of seedling damage in canola when urea or UAN is side-banded.
Recommendation NBPT can increase the amount of urea or UAN that can safely be side-banded in canola.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density decreased leaf area per plant.

Taxon: Winter Oilseed RapeBrassica napust0
Material: HO 605e0
Treatment: increasing plant densitye1
Outcome: leaf area per plante1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Results revealed a progressive decrease in leaf area per plant in response to increasing plant density and delayed transplanting”
✓ located verbatim in the source · abstract, characters 338–466

e0
“of winter oilseed rape cultivar HO 605 were investigated in two field trials”
✓ located verbatim in the source · abstract, characters 164–240

t0
“Winter Oilseed Rape”
✓ located verbatim in the source · title, characters 74–93

Title

Growth and Yield Responses to Plant Density and Stage of Transplanting in Winter Oilseed Rape (Brassica napus L.)

E. J. J. Momoh; W. Zhou Journal of Agronomy and Crop Science 2001. doi:10.1046/j.1439-037x.2001.00476.x

Other claims from this paper (10)

Intervention effect Delayed transplanting decreased leaf area per plant.
Intervention effect Leaf area index was higher in high-density plants.
Intervention effect Increasing plant density decreased the number of effective branches and pod per branch.
Intervention effect Delayed transplanting decreased the number of effective branches and pod per branch.
Intervention effect The average number of seeds per pod was significantly lower.
Intervention effect Mean seed weight did not differ among treatments.
Intervention effect Increasing plant density negatively affected seed oil content.
Intervention effect Delayed transplanting did not change seed oil content.
Intervention effect The economically highest seed yields were realized in relatively high-density plants.
Intervention effect The highest seed yields of 1730.7 and 1748.1 were obtained when transplanted at 35 and 30 days after sowing.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High density decreased root length.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: HPDe0
Outcome: root lengthe0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“HPD resulted in a rapid decrease in root morphological parameters (root length, root tips, root surface area, and root volume)”
✓ located verbatim in the source · abstract, characters 985–1111

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in green leaf area index relative to low density.
Intervention effect High plant density produced a decrease in chlorophyll content relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root tips.
Intervention effect High density decreased root surface area.
Intervention effect High density decreased root volume.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High density decreased root tips.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: HPDe0
Outcome: root tipse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“HPD resulted in a rapid decrease in root morphological parameters (root length, root tips, root surface area, and root volume)”
✓ located verbatim in the source · abstract, characters 985–1111

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in green leaf area index relative to low density.
Intervention effect High plant density produced a decrease in chlorophyll content relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root length.
Intervention effect High density decreased root surface area.
Intervention effect High density decreased root volume.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High density decreased root volume.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: HPDe0
Outcome: root volumee0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“HPD resulted in a rapid decrease in root morphological parameters (root length, root tips, root surface area, and root volume)”
✓ located verbatim in the source · abstract, characters 985–1111

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in green leaf area index relative to low density.
Intervention effect High plant density produced a decrease in chlorophyll content relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root length.
Intervention effect High density decreased root tips.
Intervention effect High density decreased root surface area.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High density decreased root surface area.

Taxon: Winter Oilseed RapeBrassica napust0
Treatment: HPDe0
Outcome: root surface areae0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“HPD resulted in a rapid decrease in root morphological parameters (root length, root tips, root surface area, and root volume)”
✓ located verbatim in the source · abstract, characters 985–1111

t0
“Winter Oilseed Rape (Brassica napus L.)”
✓ located verbatim in the source · title, characters 52–91

Title

Leaf Senescence, Root Morphology, and Seed Yield of Winter Oilseed Rape (Brassica napus L.) at Varying Plant Densities

Ming Li; Muhammad Shahbaz Naeem; Shafaqat Ali; et al. BioMed Research International 2017. doi:10.1155/2017/8581072

Other claims from this paper (16)

Intervention effect Increasing density first increased and then decreased seed yield.
Intervention effect Increasing density first increased and then decreased pod numbers per unit area.
Observation The optimal density was 58.5 × 10 4 plants ha −1 for both varieties.
Intervention effect High plant density produced a decrease in green leaf area index relative to low density.
Intervention effect High plant density produced a decrease in chlorophyll content relative to low density.
Intervention effect High plant density produced a increase in malondialdehyde content relative to low density.
Intervention effect High density had higher pod area index (PAI) after peak anthesis.
Intervention effect High density had higher pod photosynthesis after peak anthesis.
Intervention effect High density had higher radiation use efficiency (RUE) after peak anthesis.
Observation High density was associated with higher dry matter accumulation.
Observation High density was associated with higher nitrogen utilization efficiency.
Observation High density was associated with higher yield.
Intervention effect High density decreased root length.
Intervention effect High density decreased root tips.
Intervention effect High density decreased root volume.
Recommendation The authors recommend increasing density within a certain range for high seed yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing wild mustard density from 10 plants per m2 decreased oilseed rape shoot N content by 27%.

Taxon: oilseed rapeBrassica napuse1
Treatment: wild mustard densitiese1
Interactor: wild mustarde1weed
Outcome: oilseed rape N content of shoote1
Direction: decreasee1
Value: 27%e1

Not reportedComparator

Verbatim

e1
“Increased wild mustard densities from 10 wild mustard m -2 caused a decrease of 27% in oilseed rape N content of shoot”
✓ located verbatim in the source · abstract, characters 537–655

Title

Interrelationships among oilseed rape (Brassica napus L.) grain yield and weed growth under different nitrogen levels

Ruhollah Naderi; H. Ghadiri; Mohsen Edalat Iran agricultural research 2016. doi:10.22099/iar.2016.3588

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Delayed seeding decreased seed yield, harvest index and plant density.

Taxon: Brassica napusBrassica napust0
Treatment: Delayed seedinge0
Outcome: seed yield, harvest index, plant densitye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Delayed seeding resulted in a significant increase in vegetative and total yield but a significant decrease in seed yield, harvest index, plant density, racemes per plant and racemes per unit area.”
✓ located verbatim in the source · abstract, characters 175–372

t0
“THE INFLUENCE OF SEEDING DATE AND SEEDING RATE ON SEED YIELD AND YIELD COMPONENTS OF FIVE GENOTYPES OF Brassica napus”
✓ located verbatim in the source · title, characters 0–117

Title

THE INFLUENCE OF SEEDING DATE AND SEEDING RATE ON SEED YIELD AND YIELD COMPONENTS OF FIVE GENOTYPES OF Brassica napus

D. F. DEGENHARDT; Z. P. KONDRA Canadian Journal of Plant Science 1981. doi:10.4141/cjps81-027

Other claims from this paper (9)

Intervention effect Delayed seeding increased vegetative and total yield.
Intervention effect Delayed seeding decreased racemes per plant and per unit area.
Intervention effect Seeding date had no significant effect on seed yield per plant, 1000-seed weight or plant height.
Intervention effect Increased seeding rate increased plant density and racemes per unit area.
Intervention effect Increased seeding rate decreased harvest index, racemes per plant and seed yield per plant.
Intervention effect Increased seeding rate decreased plant height.
Intervention effect Seeding rate had no significant effect on seed, vegetative or total yield.
Intervention effect Seeding rate had no significant effect on 1000-seed weight.
Association Genotypes differed significantly for measured variables other than total yield and racemes per unit area.

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“decrease in density”

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