Abstract
ABSTRACT Drought affects many physiological and biochemical processes and thus reduces plant growth. Phosphorus (P) fertilization improves tolerance to drought stress in many plants. A greenhouse experiment examined the interactive effects of P nutrition and drought stress on P accumulation and translocation, yield, and protein concentration in grains of two cultivars of soybean [Glycine max (L.) Merr.]. Plants of cultivars ‘Heisheng 101’ (high protein in grains) and ‘Dongnong 464’ (low protein) were grown in a P-deficient soil supplied with 0–30 mg P kg−1 soil. Drought stress was imposed at the initial flowering (R1) or the podding (R4) stage. Drought stress limited P accumulation and reduced P translocation to the seed. The addition of P enhanced the concentration and accumulation of nitrogen (N) and P in shoots and seeds of both cultivars. Drought stress decreased shoot biomass, grain yield, and P accumulation; the decrease was greater in ‘Dongnong 46’ than ‘Heisheng 101,’ and even more so if drought stress was imposed at R4 than at R1. In contrast, drought stress increased the concentration of N in shoot and protein in grains. The addition of P alleviated the effect of drought stress on plant growth, P accumulation, and grain yield in both cultivars but to a greater extent in ‘Dongnong 46’. The results suggest that application of P fertilizers could mitigate drought stress at the reproductive stage, resulting in less yield penalty and improvement of grain quality of soybean grown in P-deficient soils.
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Claims 11
Claim · model-written summary
Drought limited phosphorus accumulation in soybean.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Drought stresse0
- Outcome
- P accumulatione0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress limited P accumulation”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Drought reduced phosphorus translocation to seed.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Drought stresse0
- Outcome
- P translocation to the seede0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress limited P accumulation and reduced P translocation to the seed”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Phosphorus addition enhanced nitrogen concentration and accumulation in shoots and seeds of both cultivars.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- shoots and seedse0
- Treatment
- addition of Pe0
- Outcome
- concentration and accumulation of nitrogen (N)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of P enhanced the concentration and accumulation of nitrogen (N) and P in shoots and seeds of both cultivars”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Phosphorus addition enhanced phosphorus concentration and accumulation in shoots and seeds of both cultivars.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- shoots and seedse0
- Treatment
- addition of Pe0
- Outcome
- Pe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of P enhanced the concentration and accumulation of nitrogen (N) and P in shoots and seeds of both cultivars”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Drought decreased shoot biomass, grain yield, and phosphorus accumulation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Drought stresse0
- Outcome
- shoot biomass, grain yield, and P accumulatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress decreased shoot biomass, grain yield, and P accumulation”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Drought decreases were greater in Dongnong 46 than Heisheng 101.
- Taxon
- soybeanGlycine maxt0
- Material
- Dongnong 46e0
- Outcome
- decreasee0
- Direction
- greatere0
- Comparator
- Heisheng 101e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease was greater in ‘Dongnong 46’ than ‘Heisheng 101,’”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Drought decreases were greater when applied at R4 than R1.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- R4e0
- Treatment
- drought stresse0
- Outcome
- drought stresse0
- Direction
- moree0
- Comparator
- R1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“even more so if drought stress was imposed at R4 than at R1”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Drought increased shoot nitrogen concentration and grain protein concentration.
- Taxon
- soybeanGlycine maxt0
- Treatment
- drought stresse0
- Outcome
- concentration of N in shoot and protein in grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress increased the concentration of N in shoot and protein in grains”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Phosphorus addition alleviated drought effects on plant growth, phosphorus accumulation, and grain yield in both cultivars.
- Taxon
- soybeanGlycine maxt0
- Treatment
- addition of Pe0
- Outcome
- plant growth, P accumulation, and grain yielde0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of P alleviated the effect of drought stress on plant growth, P accumulation, and grain yield in both cultivars”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
Phosphorus alleviation was greater in Dongnong 46.
- Taxon
- soybeanGlycine maxt0
- Material
- Dongnong 46e0
- Outcome
- greater extente0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but to a greater extent in ‘Dongnong 46’”
t0“Soybean”
t1“Interaction Between Phosphorus Nutrition and Drought on Grain Yield, and Assimilation of Phosphorus and Nitrogen in Two Soybean Cultivars Differing in Protein Concentration in Grains”
Claim · model-written summary
The authors suggest phosphorus fertilizer could mitigate reproductive-stage drought and improve yield and grain quality in P-deficient soil.
- Taxon
- soybeanGlycine maxe0
- Treatment
- application of P fertilizerse0
- Outcome
- less yield penalty and improvement of grain qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of P fertilizers could mitigate drought stress at the reproductive stage, resulting in less yield penalty and improvement of grain quality of soybean grown in P-deficient soils”
The same questions in other papers
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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.