Abstract
Abstract Expanding production of early‐maturing soybean [ Glycine max (L.) Merrill] cultivars in the southeastern USA has exposed such cultivars to a wide range of environmental conditions during seedfill. Temperatures during this growth stage influence levels of specific fatty acids, particularly of the unsaturated fatty acids. Our objective was to evaluate the grain quality responses of early‐maturing cultivars to the wide range of planting dates in the southeastern USA. Protein and oil contents, along with fatty acid profiles, were assessed for cultivars from Maturity Group (MG) 00 through IV using late April, mid‐May, early June, and late June planting dates on a well‐drained Maury silt loam (fine, mixed, mesic Typic Paleudalf) in 1990 through 1993. Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels. The higher seed‐fill temperatures associated with early planting were strongly correlated with increased oil content and oleic acid levels and reduced linolenic acid levels. Increasing seed‐fill temperatures were closely associated with reduced linolenic acid levels for all six cultivars. However, the oleic acid response to seed‐fill temperatures strongly depended on cultivar maturity. Oleic acid levels of early‐maturing cultivars were much more sensitive to seed‐fill temperatures than were those of later maturing cultivars. While overall effects of environment on grain quality characteristics may be relatively small, perhaps the quality of new low linolenic acid cultivars could be amplified through culture under the warmer conditions of the southeastern USA.
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Claims 12
Claim · model-written summary
Delayed planting increased soybean protein content.
- Taxon
- soybean
Glycine maxt0 - Treatment
- delayed plantinge0
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels.”
t0“Soybean”
Claim · model-written summary
Delayed planting increased linolenic acid levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- delayed plantinge0
- Outcome
- linolenic acid levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels.”
t0“Soybean”
Claim · model-written summary
Delayed planting reduced oil content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- delayed plantinge0
- Outcome
- oil contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels.”
t0“Soybean”
Claim · model-written summary
Delayed planting reduced oleic acid levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- delayed plantinge0
- Outcome
- oleic acid levelse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels.”
t0“Soybean”
Claim · model-written summary
Delayed planting had little or no influence on palmitic, stearic or linoleic acid levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- delayed plantinge0
- Outcome
- palmitic, stearic, or linoleic acid levelse0
- Direction
- little or no influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across years and cultivars, delayed planting increased protein content and linolenic acid levels and reduced oil content and oleic acid levels, but had little or no influence on palmitic, stearic, or linoleic acid levels.”
t0“Soybean”
Claim · model-written summary
Higher seed-fill temperatures were associated with increased oil content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- higher seed‐fill temperaturese0
- Outcome
- oil contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher seed‐fill temperatures associated with early planting were strongly correlated with increased oil content and oleic acid levels and reduced linolenic acid levels.”
t0“Soybean”
Claim · model-written summary
Higher seed-fill temperatures were associated with increased oleic acid levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- higher seed‐fill temperaturese0
- Outcome
- oleic acid levelse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher seed‐fill temperatures associated with early planting were strongly correlated with increased oil content and oleic acid levels and reduced linolenic acid levels.”
t0“Soybean”
Claim · model-written summary
Higher seed-fill temperatures were associated with reduced linolenic acid levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- higher seed‐fill temperaturese0
- Outcome
- linolenic acid levelse0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher seed‐fill temperatures associated with early planting were strongly correlated with increased oil content and oleic acid levels and reduced linolenic acid levels.”
t0“Soybean”
Claim · model-written summary
Increasing seed-fill temperatures were associated with reduced linolenic acid levels in all six cultivars.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Increasing seed‐fill temperaturese0
- Outcome
- linolenic acid levelse0
- Direction
- reducede0
- Qualifier
- all six cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing seed‐fill temperatures were closely associated with reduced linolenic acid levels for all six cultivars.”
t0“Soybean”
Claim · model-written summary
Oleic acid response to seed-fill temperature depended strongly on cultivar maturity.
- Taxon
- soybeanGlycine maxt0
- Material
- cultivar maturitye0
- Treatment
- seed‐fill temperaturese0
- Outcome
- oleic acid responsee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the oleic acid response to seed‐fill temperatures strongly depended on cultivar maturity.”
t0“Soybean”
Claim · model-written summary
Oleic acid levels of early-maturing cultivars were more temperature sensitive than later-maturing cultivars.
- Taxon
- soybeanGlycine maxt0
- Material
- early‐maturing cultivarse0
- Outcome
- Oleic acid levelse0
- Direction
- much more sensitivee0
- Comparator
- later maturing cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oleic acid levels of early‐maturing cultivars were much more sensitive to seed‐fill temperatures than were those of later maturing cultivars.”
t0“Soybean”
Claim · model-written summary
The authors suggest warmer southeastern USA conditions might amplify the quality of new low-linolenic-acid cultivars.
- Taxon
- soybeanGlycine maxt0
- Treatment
- warmer conditionse0
- Outcome
- quality of new low linolenic acid cultivarse0
- Setting
- southeastern USAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“perhaps the quality of new low linolenic acid cultivars could be amplified through culture under the warmer conditions of the southeastern USA.”
t0“Soybean”
The same questions in other papers
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See all 18 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.