Abstract
Abstract Accumulation of mineral nutrients in soybean seeds grown under drought stress may have a role in drought tolerance. Because drought stress reduces dry matter accumulation and seed size, drought stress may increase the concentration of mineral nutrients in soybean seeds and may decrease the content of nutrient per seed. The objective was to study the effect of drought on seed size distribution and whether different drought-stress patterns increase mineral nutrient concentration in soybean seeds similar in size. Two experiments were conducted, one in the greenhouse and one in the field. In the greenhouse experiment, three-drought stress treatments were imposed on soybean plants at beginning seed fill (R5) for 23–26 days: well-watered (WW), sudden severe stress (SS), and gradual stress (GS) imposed prior to severe stress. In the field experiment, irrigation and nonirrigation (rainfed) conditions were imposed on soybean plants at R5 for the entire seed filling period. Drought stress decreased seed size in the greenhouse experiment, but not in the field experiment. Within similar seed sizes, drought-stress treatments increased concentrations of phosphorus (P), potassium (K), calcium (Ca), molybdenum (Mo), manganese (Mn), copper (Cu), and zinc (Zn) in seeds above well-watered treatment, but this increase varied between the two experiments. This increase in nutrient concentrations in seeds from drought-stressed plants compared with well-watered plants for seeds similar in sizes indicates that the increase in nutrient concentration in seeds from drought-stressed plants is not necessarily due to a reduction in dry matter accumulation. Accumulation of minerals in seeds might be an important response in drought stress tolerance.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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
Drought decreased soybean seed size in the greenhouse experiment.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Drought stresse0
- Outcome
- seed sizee0
- Direction
- decreasede0
- Setting
- greenhouse experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress decreased seed size in the greenhouse experiment, but not in the field experiment.”
t0“Soybean Seeds”
Claim · model-written summary
Drought did not decrease soybean seed size in the field experiment.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Drought stresse0
- Outcome
- seed sizee0
- Direction
- not in the field experimente0
- Setting
- field experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress decreased seed size in the greenhouse experiment, but not in the field experiment.”
t0“Soybean Seeds”
Claim · model-written summary
Drought-stress treatments increased seed concentrations of phosphorus, potassium, and calcium relative to well-watered treatment for similar seed sizes, with variation between experiments.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- drought-stress treatmentse0
- Outcome
- concentrations of phosphorus (P), potassium (K), calcium (Ca)e0
- Direction
- increasede0
- Qualifier
- Within similar seed sizese0
- Comparator
- well-watered treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within similar seed sizes, drought-stress treatments increased concentrations of phosphorus (P), potassium (K), calcium (Ca), molybdenum (Mo), manganese (Mn), copper (Cu), and zinc (Zn) in seeds above well-watered treatment, but this increase varied between the two experiments.”
t0“Soybean Seeds”
Claim · model-written summary
Drought-stress treatments increased seed concentrations of molybdenum, manganese, and copper relative to well-watered treatment for similar seed sizes, with variation between experiments.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- drought-stress treatmentse0
- Outcome
- molybdenum (Mo), manganese (Mn), copper (Cu)e0
- Direction
- increasede0
- Qualifier
- Within similar seed sizese0
- Comparator
- well-watered treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within similar seed sizes, drought-stress treatments increased concentrations of phosphorus (P), potassium (K), calcium (Ca), molybdenum (Mo), manganese (Mn), copper (Cu), and zinc (Zn) in seeds above well-watered treatment, but this increase varied between the two experiments.”
t0“Soybean Seeds”
Claim · model-written summary
Drought-stress treatments increased seed zinc concentration relative to well-watered treatment for similar seed sizes, with variation between experiments.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- drought-stress treatmentse0
- Outcome
- zinc (Zn) in seedse0
- Direction
- increasede0
- Qualifier
- Within similar seed sizese0
- Comparator
- well-watered treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within similar seed sizes, drought-stress treatments increased concentrations of phosphorus (P), potassium (K), calcium (Ca), molybdenum (Mo), manganese (Mn), copper (Cu), and zinc (Zn) in seeds above well-watered treatment, but this increase varied between the two experiments.”
t0“Soybean Seeds”
Claim · model-written summary
The increase in mineral concentration in similarly sized drought-stressed seeds is not necessarily explained by reduced dry matter accumulation.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- increase in nutrient concentration in seedse0
- Qualifier
- not necessarily due to a reduction in dry matter accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in nutrient concentration in seeds from drought-stressed plants is not necessarily due to a reduction in dry matter accumulation”
t0“Soybean Seeds”
The same questions in other papers
drought · nutrient: content · Glycine max (soybean)Results differ
6 papers in the same direction as this paper · 31 in the opposite direction
- no effect
- negative
- no effect
34 papers more in this group
See all 38 papers →drought · yield · Glycine max (soybean)Positive and negative results
178 papers in the same direction as this paper · 35 in the opposite direction
- positive
- negative
- negative
210 papers more in this group
See all 214 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.