Paper · 2004

The effect of plant density on seed yield of two cool tolerant soybean cultivars in Canterbury

M. M. Rahman; M.G. Mwakangwale; J. G. Hampton; et al.

7
claims
11
verbatim quotes
6
citations
1
research areas
—
Not open access

Abstract

The effects of plant density on seed yield of two cool tolerant soybean cultivars were examined in two consecutive seasons at the same site at Lincoln University, Canterbury. In the first season (2000/2001) 25 plant densities ranging from 2 to 84 plants/m2 were established using a systematic (radial) trial design, while in the second season (2001/2002) 5 plant densities (from 20 to 80 plants/m2) were established in replicated plots using a randomised complete block design. Soybean seed yield increased in both seasons as plant density increased to 40 plants/m2, but did not differ among plant densities ranging from 40 to 77 plants/m 2 • Seed yields ranged from 214 to 395 g/m 2 in 2000/2001 and from 221 to 276 g/m2 in 2001/2002 depending on density. Cultivar March out yielded cv. Northern Conquest in the first season, but the reverse occurred in the second season. There was no cultivar x plant density interaction for seed yield in either season. At this site, plant populations higher than 40 plants/m2 did not result in further increases in seed yield because pod number per plant and individual

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Claims 7

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Soybean seed yield increased with density up to 40 plants/m2 in both seasons.

Taxon
SoybeanGlycine maxe0
Treatment
plant density increased to 40 plants/m2e0
Outcome
seed yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Soybean seed yield increased in both seasons as plant density increased to 40 plants/m2”

✓ located verbatim in the source · abstract, characters 478–565 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Seed yield did not differ across densities of 40 to 77 plants/m 2.

Taxon
SoybeanGlycine maxe1
Treatment
plant densities ranging from 40 to 77 plants/m 2e0
Outcome
seed yielde1
Direction
did not differe0
Comparator
plant densities ranging from 40 to 77 plants/m 2e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“did not differ among plant densities ranging from 40 to 77 plants/m 2”

✓ located verbatim in the source · abstract, characters 571–640 · show in text ↑
e1

“Soybean seed yield”

✓ located verbatim in the source · abstract, characters 478–496 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Seed yield ranged from 214 to 395 g/m 2 in 2000/2001.

Taxon
SoybeanGlycine maxe1
Outcome
Seed yieldse0
Value
214 to 395 g/m 2e0
Qualifier
2000/2001e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Seed yields ranged from 214 to 395 g/m 2 in 2000/2001”

✓ located verbatim in the source · abstract, characters 643–696 · show in text ↑
e1

“Soybean seed yield”

✓ located verbatim in the source · abstract, characters 478–496 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Seed yield ranged from 221 to 276 g/m2 in 2001/2002.

Taxon
SoybeanGlycine maxe1
Outcome
seed yielde1
Value
221 to 276 g/m2e0
Qualifier
2001/2002e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“from 221 to 276 g/m2 in 2001/2002”

✓ located verbatim in the source · abstract, characters 701–734 · show in text ↑
e1

“Soybean seed yield”

✓ located verbatim in the source · abstract, characters 478–496 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cultivar March outyielded Northern Conquest in the first season.

Taxon
Cultivare0
Material
Marche0
Outcome
yieldede0
Direction
out yieldede0
Comparator
cv. Northern Conqueste0

Verbatim

e0

“Cultivar March out yielded cv. Northern Conquest in the first season”

✓ located verbatim in the source · abstract, characters 757–825 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Northern Conquest outyielded March in the second season.

Taxon
Cultivare0
Material
cv. Northern Conqueste0
Outcome
yieldede0
Qualifier
the reverse occurred in the second seasone0
Comparator
Marche0

Not reportedDirection

Verbatim

e0

“Cultivar March out yielded cv. Northern Conquest in the first season, but the reverse occurred in the second season”

✓ located verbatim in the source · abstract, characters 757–872 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

No cultivar by plant-density interaction for yield appeared in either season.

Taxon
SoybeanGlycine maxe1
Treatment
plant densitye0
Outcome
seed yielde0
Direction
noe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“There was no cultivar x plant density interaction for seed yield in either season”

✓ located verbatim in the source · abstract, characters 874–955 · show in text ↑
e1

“Soybean seed yield”

✓ located verbatim in the source · abstract, characters 478–496 · show in text ↑

density · yield · Glycine max (soybean)Positive and negative results

305 papers: 207 positive, 98 negative or no effect

97 papers in the same direction as this paper · 207 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

301 papers more in this group

See all 305 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.