Abstract
Hydroponically grown ‘Dare’ soybeans ( Glycine max L.) were exposed to a number of discrete stresses at the time of flowering. Effects on initial pod set, subsequent pod abscission, and ovule growth were assessed. Lodging, when not associated with shading, did not lower pod set. Severe short‐term deficiency of calcium and nitrogen decreased pod set by one‐third. Temperatures above 40C caused severe pod abscission. Shading (63% of ambient) also caused abscission of half the pods. If plants were returned to short‐night conditions after 18 or 22 longnight cycles, flowering and initial pod set were similar to controls but ovule growth was markedly retarded. Thus, yield may be limited by high temperatures and by low light intensities, which cause pod shedding, or by inadequate night lengths which retard seed filling.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Lodging without shading did not reduce pod set.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Lodginge0
- Outcome
- pod sete0
- Direction
- did not lowere0
- Qualifier
- when not associated with shadinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lodging, when not associated with shading, did not lower pod set.”
t0“Soybean”
Claim · model-written summary
Severe short-term calcium and nitrogen deficiency reduced pod set by one-third.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Severe short‐term deficiency of calcium and nitrogene0
- Outcome
- pod sete0
- Direction
- decreasede0
- Value
- one‐thirde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Severe short‐term deficiency of calcium and nitrogen decreased pod set by one‐third.”
t0“Soybean”
Claim · model-written summary
Temperatures above 40C caused severe pod abscission.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Temperatures above 40Ce0
- Outcome
- pod abscissione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Temperatures above 40C caused severe pod abscission.”
t0“Soybean”
Claim · model-written summary
Shading caused abscission of half the pods.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Shading (63% of ambient)e0
- Outcome
- abscission of half the podse0
- Value
- half the podse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shading (63% of ambient) also caused abscission of half the pods.”
t0“Soybean”
Claim · model-written summary
After 18 or 22 longnight cycles, short-night restoration left flowering and initial pod set similar to controls.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- returned to short‐night conditions after 18 or 22 longnight cyclese0
- Outcome
- flowering and initial pod sete0
- Direction
- similare0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If plants were returned to short‐night conditions after 18 or 22 longnight cycles, flowering and initial pod set were similar to controls”
t0“Soybean”
Claim · model-written summary
The same photoperiod treatment markedly retarded ovule growth.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- returned to short‐night conditions after 18 or 22 longnight cyclese0
- Outcome
- ovule growthe0
- Direction
- retardede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If plants were returned to short‐night conditions after 18 or 22 longnight cycles, flowering and initial pod set were similar to controls but ovule growth was markedly retarded.”
t0“Soybean”
The same questions in other papers
calcium atom · yield · Glycine max (soybean)Positive and negative results
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This paper is about lacking the nutrient, so it counts the other way round here.
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This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- no effect
- negative
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See all 416 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.