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“decrease in density”

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Organism: Glycine max ✕

Intervention effectobservedreview summarynegativebasis n/a

Claim · model-written summary

Under low plant density the overall soybean yield may slightly decrease.

Taxon: SoybeanGlycine maxt0
Treatment: Low plant densitye3
Outcome: overall yielde3
Direction: decreasee3
Qualifier: may slightly decreasee3

Not reportedComparator

Verbatim

t0
“Soybean”
✓ located verbatim in the source · title, characters 53–60

e3
“Low plant density helps improve individual plant growth and nutrient use efficiency, although the overall yield may slightly decrease”
✓ located verbatim in the source · abstract, characters 288–421

Title

The Role of Plant Density and Nutrient Management in Soybean Yield Optimization

Jianhua Wang; Xin Lin; Xiaoying Li Legume Genomics and Genetics 2024. doi:10.5376/lgg.2024.15.0027

Other claims from this paper (6)

Intervention effect High plant density significantly increases soybean productivity by enhancing canopy light interception and dry matter accumulation.
Intervention effect High plant density may also lead to increased competition for resources in soybean.
Intervention effect Low plant density helps improve individual plant growth and nutrient use efficiency in soybean.
Intervention effect Proper nutrient supply and management strategies can enhance soybean adaptability to environmental stresses.
Intervention effect Proper nutrient supply and management strategies can increase soybean yield.
Intervention effect Proper nutrient supply and management strategies can reduce soybean input costs.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Delaying sowing and increasing density changed the yield of Hefeng 50 in an increase-then-decrease trend.

Taxon: soybeanGlycine maxe0
Material: Hefeng 50e0
Treatment: sowing date delayed and density increasede1
Outcome: yielde1
Direction: increase-and-then-decrease trende1

Not reportedComparator

Verbatim

e0
“New soybean variety Hefeng 50”
✓ located verbatim in the source · abstract, characters 0–29

e1
“with the sowing date delayed and density increased,the yield of Hefeng 50 showed increase-and-then-decrease trend”
✓ located verbatim in the source · abstract, characters 313–426

Title

Influence of Sowing Date and Density on Oil Content and Yield of High-oil and High-yield Soybean Variety Hefeng 50

Zhixin Wang 2009

Other claims from this paper (4)

Intervention effect Delaying the sowing date decreased the oil content of soybean Hefeng 50.
Intervention effect Planting density had no obvious influence on the oil content of soybean Hefeng 50.
Intervention effect Planting density of 25×10^4 plants/ha with a 9 May sowing date gave the highest yield of Hefeng 50.
Intervention effect Planting density of 25×10^4 plants/ha with a 9 May sowing date gave higher oil content in Hefeng 50.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher density decreased carbohydrate accumulation duration by 13%.

Taxon: soybeanGlycine maxe0
Treatment: PD3e0
Outcome: continuous accumulation time ( t c ) of these carbohydratese0
Direction: decreasee0
Value: 13%e0
Comparator: lower planting density (PD1)e1

Verbatim

e0
“a 29% decrease in the maximum accumulation rate ( c max ) of sucrose, lignin, and cellulose was observed, along with a 13% decrease in the continuous accumulation time ( t c ) of these carbohydrates in intercropped soybean at PD3”
✓ located verbatim in the source · abstract, characters 1163–1392

e1
“compared to the lower planting density (PD1)”
✓ located verbatim in the source · abstract, characters 1103–1147

Title

Quantifying the effects of plant density on soybean lodging resistance and growth dynamics in maize-soybean strip intercropping

Li Wang; Bin Cheng; Tao Zhou; et al. Frontiers in Plant Science 2023. doi:10.3389/fpls.2023.1264378

Other claims from this paper (9)

Intervention effect Maize shading reduced lignin accumulation in soybean stems relative to monoculture.
Intervention effect Maize shading decelerated soybean organ growth relative to monoculture.
Intervention effect Higher planting density reduced maximum dry matter growth rate by 28% in intercropped soybean.
Intervention effect Higher planting density decreased time to maximum dry matter growth rate by 11% in intercropped soybean.
Intervention effect Higher density decreased maximum accumulation rate of sucrose, lignin, and cellulose by 29%.
Mechanism Shading preferentially allocated assimilates to soybean stems and enhanced early plant height.
Observation At later stages a greater share of sucrose was allocated to soybean leaves.
Mechanism Shading hindered sucrose conversion to stem lignin and cellulose, reducing lodging resistance index.
Recommendation The authors recommend optimizing intercropping density to alleviate shading and enhance productivity.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shading reduced stomatal density.

Taxon: soybeanGlycine maxt0
Treatment: shadinge1
Outcome: stomatal density (Nstoma)e0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“soybean”
✓ located after whitespace/quote normalisation · title, characters 36–43

e0
“The yield decrease was due to the decrease of total biomass (TDW), branch number, node number, pod number, and seed number, and stomatal density (Nstoma) without any change in harvest index (HI) and guard cell length (Lguard).”
✓ located verbatim in the source · abstract, characters 1090–1316

e1
“seed yield decreased from 248 g m −2 to 205 g m −2 by the difference of shading.”
✓ located verbatim in the source · abstract, characters 1009–1089

Title

Yield Performance of Shade Tolerant Soybean Cultivars under Shaded Environment at Various Planting Densities

A Saryoko; Z Yursak; Y Astuti; et al. IOP Conference Series Earth and Environmental Science 2021. doi:10.1088/1755-1315/715/1/012029

Other claims from this paper (7)

Intervention effect Greater shading reduced soybean seed yield from 248 to 205 g m −2.
Intervention effect Shading reduced total biomass, branch number, node number, pod number and seed number.
Intervention effect Harvest index and guard cell length did not change with shading.
Intervention effect Normal planting density gave better seed yield and total dry weight than high density.
Observation Deep-shaded Dena-1 at normal density achieved 230 g m −2 seed yield.
Intervention effect Deep-shaded Dena-1 yield declined significantly to 161 g m −2 at high density.
Recommendation The authors recommend Dena-1 at single-row density of 12.5 plants m −2 to maintain yield under shade.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Inoculation reduced soybean stomatal density, epidermis thickness, and mesophyll thickness.

Taxon: SoybeanGlycine maxe0
Treatment: inoculated by S. rolfsiie0
Interactor: S. rolfsiiAgroathelia rolfsiie0pathogen
Outcome: stomatal density, epidermis thickness, and mesophyll thicknesse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Soybean leaves and stem anatomy inoculated by S. rolfsii showed a decrease in the stomatal density, epidermis thickness, and mesophyll thickness”
✓ located verbatim in the source · abstract, characters 721–865

Title

Histopathological Evaluation of Soybean (Glycine max (L.) Merr.) Strains Resistance to Sclerotium rolfsii Disease

Siti Samiyarsih; Chindy Ayu Erlina; Juni Safitri Muljowati; et al. Planta Tropika 2022. doi:10.18196/pt.v10i1.8907

Other claims from this paper (2)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher density decreased maximum accumulation rate of sucrose, lignin, and cellulose by 29%.

Taxon: soybeanGlycine maxe0
Treatment: PD3e0
Outcome: maximum accumulation rate ( c max ) of sucrose, lignin, and cellulosee0
Direction: decreasee0
Value: 29%e0
Comparator: lower planting density (PD1)e1

Verbatim

e0
“a 29% decrease in the maximum accumulation rate ( c max ) of sucrose, lignin, and cellulose was observed, along with a 13% decrease in the continuous accumulation time ( t c ) of these carbohydrates in intercropped soybean at PD3”
✓ located verbatim in the source · abstract, characters 1163–1392

e1
“compared to the lower planting density (PD1)”
✓ located verbatim in the source · abstract, characters 1103–1147

Title

Quantifying the effects of plant density on soybean lodging resistance and growth dynamics in maize-soybean strip intercropping

Li Wang; Bin Cheng; Tao Zhou; et al. Frontiers in Plant Science 2023. doi:10.3389/fpls.2023.1264378

Other claims from this paper (9)

Intervention effect Maize shading reduced lignin accumulation in soybean stems relative to monoculture.
Intervention effect Maize shading decelerated soybean organ growth relative to monoculture.
Intervention effect Higher planting density reduced maximum dry matter growth rate by 28% in intercropped soybean.
Intervention effect Higher planting density decreased time to maximum dry matter growth rate by 11% in intercropped soybean.
Intervention effect Higher density decreased carbohydrate accumulation duration by 13%.
Mechanism Shading preferentially allocated assimilates to soybean stems and enhanced early plant height.
Observation At later stages a greater share of sucrose was allocated to soybean leaves.
Mechanism Shading hindered sucrose conversion to stem lignin and cellulose, reducing lodging resistance index.
Recommendation The authors recommend optimizing intercropping density to alleviate shading and enhance productivity.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Trophy plus Harmony inhibited soybean seedlings and slightly reduced seedling density.

Taxon: soybeanGlycine maxe0
Treatment: Trophy 2.0; Harmony 8g / hae0
Outcome: density of seedlingse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Trophy 2.0; Harmony 8g / ha significantly inhibited soybean seedlings, causing a slight decrease in the density of seedlings”
✓ located verbatim in the source · abstract, characters 1160–1284

Title

THE INFLUENCE OF VARIOUS HERBICIDES ON THE PRODUCTIVITY OF SOYBEANS IN THE CONDITIONS OF THE FOREST-STEPPE ZONE OF THE RSO-ALANIA

A.A. Abaev; S.A. Tavkazakhov; V.V. Tedeeva; et al. SCIENTIFIC LIFE 2021. doi:10.35679/1991-9476-2021-16-5-573-582

Other claims from this paper (15)

Intervention effect Pivot plus Harmony reduced crop contamination by 93.6%.
Intervention effect Pivot plus Harmony reduced weed mass by 95.3%.
Intervention effect Trophy plus Harmony reduced weed number by 92.3%.
Intervention effect Trophy plus Harmony reduced weed mass by 93.7%.
Observation Pivot plus Pulsar and Trophy plus Pulsar had lower weed-control efficiency.
Intervention effect Trophy plus Pulsar inhibited soybean nodule number and raw mass.
Association Elevated air and soil temperatures increased weed sensitivity to herbicides.
Intervention effect Trophy plus Pulsar caused soybean yellowing early in the growing season.
Intervention effect Herbicides increased bean and grain number per plant by 18.4 – 38.9%.
Intervention effect Pivot plus Harmony increased thousand-seed mass by 9-11 g.
Intervention effect Pivot plus Harmony did not affect germination energy or seed germination.
Intervention effect Herbicides led to uneven and longer soybean germination.
Intervention effect Soil herbicides reduced standing-plant density by 0.4-1.1%.
Intervention effect Insurance herbicides reduced standing-plant density by 2.7-3.3%.
Observation Pivot plus Harmony left lower weed nutrient removal than control.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Trophy plus Harmony slightly reduced soybean seedling density.

Taxon: soybeanGlycine maxe0
Treatment: Trophy 2.0; Harmony 8g / hae0
Outcome: density of seedlingse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“The introduction of Trophy 2.0; Harmony 8g / ha significantly inhibited soybean seedlings, causing a slight decrease in the density of seedlings.”
✓ located verbatim in the source · abstract, characters 1140–1285

Title

THE INFLUENCE OF VARIOUS HERBICIDES ON THE PRODUCTIVITY OF SOYBEANS IN THE CONDITIONS OF THE FOREST-STEPPE ZONE OF THE RSO-ALANIA

A.A. Abaev; S.A. Tavkazakhov; V.V. Tedeeva; et al. SCIENTIFIC LIFE 2021. doi:10.35679/1991-9476-2021-16-5-575-583

Other claims from this paper (13)

Intervention effect Pivot plus Harmony reduced crop contamination by 93.6%.
Intervention effect Pivot plus Harmony reduced weed mass by 95.3%.
Intervention effect Trophy plus Harmony reduced weed number by 92.3%.
Intervention effect Trophy plus Harmony reduced weed mass by 93.7%.
Observation Pivot plus Pulsar and Trophy plus Pulsar were significantly less effective.
Intervention effect Trophy plus Pulsar inhibited nodule number and raw mass.
Association Elevated air and soil temperatures increased weed sensitivity to all herbicides.
Intervention effect Trophy plus Pulsar caused soybean yellowing.
Intervention effect Herbicides increased beans and grains per plant by 18.4–38.9%.
Intervention effect Pivot plus Harmony increased thousand-seed mass by 9-11 g.
Intervention effect Pivot plus Harmony did not affect germination energy or seed germination.
Intervention effect Soil herbicides reduced standing plant density by 0.4-1.1%.
Intervention effect Insurance herbicides reduced standing plant density by 2.7-3.3%.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing velvetleaf density significantly decreased the pod and grain number of soybean plants.

Taxon: soybeanGlycine maxt0
Treatment: velvetleaf densitye1
Interactor: velvetleafAbutilon theophrastie1weed
Outcome: pod and grain numbere1
Direction: decreasee1

Not reportedComparator

Verbatim

t0
“SOYBEAN (GLYSINE MAX) AND VELVETLEAF (ABUTILON THEOPHRASTI)”
✓ located verbatim in the source · title, characters 26–85

e1
“increase in velvetleaf density due to significant decrease in pod and grain number of soybean plant caused significant reduction of grain yield”
✓ located verbatim in the source · abstract, characters 614–757

Title

THE COMPETITIVE ASPECT OF SOYBEAN (GLYSINE MAX) AND VELVETLEAF (ABUTILON THEOPHRASTI) IN RESPONSE TO POPULATION DENSITY AND PLANNING DATE

Mahshid Shafigh; M H Rashed Mohasel; Nasiri Mahalati Mahdi DOAJ (DOAJ: Directory of Open Access Journals) 2006. doi:10.22067/gsc.v4i1.1319

Other claims from this paper (4)

Intervention effect Increasing velvetleaf density significantly reduced soybean grain yield.
Intervention effect Delaying planting date significantly reduced soybean yield components and yield.
Intervention effect Planting date had a significant effect on soybean yield and all yield components.
Association The density by planting date interaction had significant effects on grain number per plant, 1000 grain weight and grain yield of soybean.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Defoliation up to 33.3% at R3 caused no significant yield decline at any density.

Taxon: soybeanGlycine maxe0
Treatment: defoliation of up to 33.3% at R3e0
Outcome: grain yielde0
Direction: no significant decreasee0
Qualifier: regardless of the plant densitye0

Not reportedComparator

Verbatim

e0
“The soybean tolerate defoliation of up to 33.3% at R3 with no significant decrease in grain yield, regardless of the plant density.”
✓ located verbatim in the source · abstract, characters 1124–1255

Title

Soybean tolerance to defoliation at the beginning of pod formation as affected by plant density

Murilo Miguel Durli; Luis Sangoi; Clovis Arruda Souza; et al. Revista CERES 2022. doi:10.1590/0034-737x202269040004

Other claims from this paper (5)

Observation Grain yield ranged from 4,219 to 5,356 kg ha -1 in 2016/2017.
Observation Grain yield ranged from 3,732 to 5,186 kg ha -1 in 2017/2018.
Association Plant density did not alter the yield response to defoliation.
Intervention effect Defoliation of 16.6% increased yield by 7.5% in 2016/2017.
Intervention effect Defoliation of 16.6% increased yield by 5.6% in 2017/2018.

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“decrease in density”

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