Abstract
Abstract Dry weight (DW) production of ‘Hawkeye’ soybeans ( Glycine max (L.) Merrill) was highly correlated with leaf area index (LAI) accumulation. Those plant population‐arrangement combinations favoring a rapid attainment of high LAI (i.e., high plant populations and narrow row spacings) were those also having the greatest DW accumulation. However, the rate of DW production in soybeans was shown previously to be a function of LAI only up to a particular LAI. Further, maximum seed yield occurred at less than maximum LAI and at generally lower populations and narrower row spacings. Highest seed yield occurred in 10‐inch rows with 104,544 plants per acre, while DW was maximized in 5‐inch rows with 209,088 plants per acre. LAI and DW produced at stage 9 were not good predictors of seed yield. Plants produced at highest densities were taller, more sparsely branched, lodged more, and set fewer pods and seed than those plants at lower densities. Thus, the seed yield reduction resulting suggested more severe plant competition at higher plant densities. Plant spacing and population had a small effect on protein and oil content.
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Claims 12
Claim · model-written summary
Dry weight production of Hawkeye soybean was highly correlated with leaf area index accumulation.
- Taxon
- Glycine max
Glycine maxe1 - Outcome
- Dry weight (DW) productione1
- Direction
- highly correlatede1
- Qualifier
- with leaf area index (LAI) accumulatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Dry weight (DW) production of ‘Hawkeye’ soybeans ( Glycine max (L.) Merrill) was highly correlated with leaf area index (LAI) accumulation”
t0“Soybean Development”
Claim · model-written summary
Combinations favoring rapid high LAI had the greatest dry weight accumulation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- high plant populations and narrow row spacingse2
- Outcome
- DW accumulatione2
- Direction
- greateste2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Those plant population‐arrangement combinations favoring a rapid attainment of high LAI (i.e., high plant populations and narrow row spacings) were those also having the greatest DW accumulation”
t0“Soybean Development”
Claim · model-written summary
Maximum seed yield occurred at less than maximum LAI and at lower populations and narrower row spacings.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- lower populations and narrower row spacingse3
- Outcome
- maximum seed yielde3
- Direction
- maximume3
- Qualifier
- at less than maximum LAIe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“maximum seed yield occurred at less than maximum LAI and at generally lower populations and narrower row spacings”
t0“Soybean Development”
Claim · model-written summary
Highest seed yield occurred in 10-inch rows at 104,544 plants per acre.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 10‐inch rows with 104,544 plants per acree4
- Outcome
- Highest seed yielde4
- Direction
- Higheste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Highest seed yield occurred in 10‐inch rows with 104,544 plants per acre”
t0“Soybean Development”
Claim · model-written summary
Dry weight was maximized in 5-inch rows at 209,088 plants per acre.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 5‐inch rows with 209,088 plants per acree5
- Outcome
- DWe5
- Direction
- maximizede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“while DW was maximized in 5‐inch rows with 209,088 plants per acre”
t0“Soybean Development”
Claim · model-written summary
LAI and dry weight at stage 9 were not good predictors of seed yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- LAI and DW produced at stage 9e6
- Outcome
- seed yielde6
- Direction
- not good predictorse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“LAI and DW produced at stage 9 were not good predictors of seed yield”
t0“Soybean Development”
Claim · model-written summary
Plants at the highest densities were taller than plants at lower densities.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- highest densitiese7
- Outcome
- Plantse7
- Direction
- tallere7
- Comparator
- lower densitiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Plants produced at highest densities were taller, more sparsely branched, lodged more, and set fewer pods and seed than those plants at lower densities”
t0“Soybean Development”
Claim · model-written summary
Plants at the highest densities were more sparsely branched than plants at lower densities.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- highest densitiese7
- Outcome
- branchede7
- Direction
- more sparsely branchede7
- Comparator
- lower densitiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Plants produced at highest densities were taller, more sparsely branched, lodged more, and set fewer pods and seed than those plants at lower densities”
t0“Soybean Development”
Claim · model-written summary
Plants at the highest densities lodged more than plants at lower densities.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- highest densitiese7
- Outcome
- lodgede7
- Direction
- lodged moree7
- Comparator
- lower densitiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Plants produced at highest densities were taller, more sparsely branched, lodged more, and set fewer pods and seed than those plants at lower densities”
t0“Soybean Development”
Claim · model-written summary
Plants at the highest densities set fewer pods and seed than plants at lower densities.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- highest densitiese7
- Outcome
- pods and seede7
- Direction
- set fewere7
- Comparator
- lower densitiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Plants produced at highest densities were taller, more sparsely branched, lodged more, and set fewer pods and seed than those plants at lower densities”
t0“Soybean Development”
Claim · model-written summary
Seed yield reduction at high density suggests more severe plant competition.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- seed yield reductione1
- Qualifier
- more severe plant competition at higher plant densitiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Thus, the seed yield reduction resulting suggested more severe plant competition at higher plant densities”
t0“Soybean Development”
Claim · model-written summary
Plant spacing and population had a small effect on protein and oil content.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Plant spacing and populatione1
- Outcome
- protein and oil contente1
- Direction
- small effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant spacing and population had a small effect on protein and oil content”
t0“Soybean Development”
The same questions in other papers
density · quality: oil · Glycine max (soybean)Positive and negative results
6 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- positive
- positive
11 papers more in this group
See all 15 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.