Abstract
Soybean genotypes differed significantly in their ability to suppress speargrass due to their inherent traits to compete with speargrass under different management practices. Soybean genotypes and velvet bean (control) were sown in tilled and slashed at two different row spacing of 75 × 10 cm and 50 × 10 cm. The result showed that soybean plants were taller with thicker canopy cover in the tilled plots than in the slashed plots. There was lower speargrass dry matter and higher grain yield in the tilled plots than the slashed plots. Taller soybean plants with thicker canopy cover were found in narrow row (50 cm). However, the grain yield was similar in both rows. Speargrass shoot dry matter was lower in the narrow row than the wide row (75 cm). There was significant reduction in speargrass dry matter (shoot and rhizome) at harvest in the plots sown to velvet bean compared to the plots sown to soybean genotypes. This accounted for 98% reduction in speargrass dry matter in velvet bean plots and about 70% reduction in soybean plot compared with the initial speargrass dry matter content before planting. TGX1844-18E gave highest grain yield of 985.65 kg/ha, which was similar to TGX144-2E (896.82 kg/ha). There was significantly negative correlation between soybean shoot height (-0.51 and -0.57); canopy cover (-0.68 and -0.73) and speargrass shoot and rhizome dry matter respectively. The result showed that the soybean genotypes can suppress speargrass with tall shoot, dense canopy with considerable grain yield.
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Claims 16
Claim · model-written summary
Soybean genotypes differed significantly in speargrass suppression.
- Taxon
- Soybean
Glycine maxe0 - Interactor
- speargrasse0weed
- Outcome
- ability to suppress speargrasse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean genotypes differed significantly in their ability to suppress speargrass”
Claim · model-written summary
Tilled plots had taller soybean plants and thicker canopy than slashed plots.
- Taxon
- soybeanGlycine maxe0
- Treatment
- tilled plotse0
- Outcome
- taller with thicker canopy covere0
- Direction
- tallere0
- Comparator
- slashed plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean plants were taller with thicker canopy cover in the tilled plots than in the slashed plots”
Claim · model-written summary
Tilled plots had less speargrass dry matter than slashed plots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- tilled plotse0
- Interactor
- speargrasse0weed
- Outcome
- speargrass dry mattere0
- Direction
- lowere0
- Comparator
- slashed plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was lower speargrass dry matter and higher grain yield in the tilled plots than the slashed plots”
t0“soybean genotypes”
Claim · model-written summary
Tilled plots had higher soybean grain yield than slashed plots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- tilled plotse0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- slashed plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was lower speargrass dry matter and higher grain yield in the tilled plots than the slashed plots”
t0“soybean genotypes”
Claim · model-written summary
Narrow rows produced taller soybean plants with thicker canopy.
- Taxon
- soybeanGlycine maxe0
- Treatment
- narrow row (50 cm)e0
- Outcome
- Taller soybean plants with thicker canopy covere0
- Direction
- Tallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Taller soybean plants with thicker canopy cover were found in narrow row (50 cm)”
Claim · model-written summary
Grain yield was similar in both row spacings.
- Taxon
- soybeanGlycine maxt0
- Treatment
- both rowse0
- Outcome
- grain yielde0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain yield was similar in both rows”
t0“soybean genotypes”
Claim · model-written summary
Narrow rows reduced speargrass shoot dry matter relative to wide rows.
- Taxon
- soybeanGlycine maxt0
- Treatment
- narrow rowe0
- Interactor
- Speargrasse0weed
- Outcome
- Speargrass shoot dry mattere0
- Direction
- lowere0
- Comparator
- wide row (75 cm)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Speargrass shoot dry matter was lower in the narrow row than the wide row (75 cm)”
t0“soybean genotypes”
Claim · model-written summary
Velvet bean plots had significantly less speargrass shoot and rhizome dry matter at harvest than soybean plots.
- Taxon
- soybeanGlycine maxe0
- Treatment
- plots sown to velvet beane0
- Interactor
- speargrasse0weed
- Outcome
- speargrass dry matter (shoot and rhizome)e0
- Direction
- reductione0
- Comparator
- plots sown to soybean genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant reduction in speargrass dry matter (shoot and rhizome) at harvest in the plots sown to velvet bean compared to the plots sown to soybean genotypes”
Claim · model-written summary
Velvet bean plots reduced speargrass dry matter by 98% relative to its initial content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- velvet bean plotse0
- Interactor
- speargrasse0weed
- Outcome
- speargrass dry mattere0
- Direction
- reductione0
- Value
- 98%e0
- Comparator
- initial speargrass dry matter content before plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“98% reduction in speargrass dry matter in velvet bean plots and about 70% reduction in soybean plot compared with the initial speargrass dry matter content before planting”
t0“soybean genotypes”
Claim · model-written summary
Soybean plots reduced speargrass dry matter by about 70% relative to its initial content.
- Taxon
- soybeanGlycine maxe0
- Treatment
- soybean plote0
- Interactor
- speargrasse0weed
- Outcome
- speargrass dry mattere0
- Direction
- reductione0
- Value
- about 70%e0
- Comparator
- initial speargrass dry matter content before plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“98% reduction in speargrass dry matter in velvet bean plots and about 70% reduction in soybean plot compared with the initial speargrass dry matter content before planting”
Claim · model-written summary
TGX1844-18E had the highest grain yield, 985.65 kg/ha.
- Taxon
- soybeanGlycine maxt0
- Material
- TGX1844-18Ee0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 985.65 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TGX1844-18E gave highest grain yield of 985.65 kg/ha”
t0“soybean genotypes”
Claim · model-written summary
TGX144-2E yielded 896.82 kg/ha, similarly to TGX1844-18E.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which was similar to TGX144-2E (896.82 kg/ha)”
t0“soybean genotypes”
Claim · model-written summary
Soybean shoot height was negatively correlated with speargrass shoot dry matter (r=-0.51).
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- shoote0
- Interactor
- speargrasse0weed
- Outcome
- speargrass shoote0
- Direction
- negativee0
- Value
- -0.51e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negative correlation between soybean shoot height (-0.51 and -0.57); canopy cover (-0.68 and -0.73) and speargrass shoot and rhizome dry matter respectively”
Claim · model-written summary
Soybean shoot height was negatively correlated with speargrass rhizome dry matter (r=-0.57).
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- shoote0
- Interactor
- speargrasse0weed
- Outcome
- rhizome dry mattere0
- Direction
- negativee0
- Value
- -0.57e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negative correlation between soybean shoot height (-0.51 and -0.57); canopy cover (-0.68 and -0.73) and speargrass shoot and rhizome dry matter respectively”
Claim · model-written summary
Soybean canopy cover was negatively correlated with speargrass shoot dry matter (r=-0.68).
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- canopye0
- Interactor
- speargrasse0weed
- Outcome
- speargrass shoote0
- Direction
- negativee0
- Value
- -0.68e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negative correlation between soybean shoot height (-0.51 and -0.57); canopy cover (-0.68 and -0.73) and speargrass shoot and rhizome dry matter respectively”
Claim · model-written summary
Soybean canopy cover was negatively correlated with speargrass rhizome dry matter (r=-0.73).
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- canopye0
- Interactor
- speargrasse0weed
- Outcome
- rhizome dry mattere0
- Direction
- negativee0
- Value
- -0.73e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negative correlation between soybean shoot height (-0.51 and -0.57); canopy cover (-0.68 and -0.73) and speargrass shoot and rhizome dry matter respectively”
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See all 390 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.