Abstract
Expansion of soybean [Glycine max (L.) Merrill] cultivated in Brazil to regions with low fertility soils gave rise to studies on the possibility of obtaining highly productive cultivars with high nutrient use efficiency. An experiment in greenhouse conditions was conducted to assess phosphorus (P) use efficiency (PUE) by 13 soybean genotypes. The genotypes were grown in an Ustoxix Quartzipsamment with two P rates [0 (no P application) and 150 mg P kg−1], whose source was monoammonium phosphate (MAP, P2O5 44%). Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI), relative yield (RY), and physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration) were influenced by soybean genotypes and P rates. Genotypes BMX Apolo RR, BRS 360RR, BRS 378RR, CD 219RR, DM 2302RR, TMG 7161RR, and Vtop RR were classified as non-efficient and non-responsive to P application, while BMX Potência RR, Vmax RR, FPS Solar RR, NA 5909RR, TMG 1066RR, and M 6210 IPRO were classified as efficient and responsive. Phosphorus application increased the values of physiological components, which was not observed for N, K, Ca, Mg, and S concentration in the leaves and grains. Soybean genotypes selection for increased P efficiency could help growers overcome the problem of soybean cultivation on new areas or degraded pastures.
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Claims 13
Claim · model-written summary
Soybean genotype and P rate influenced shoot dry weight, grain yield and grain harvest index.
- Taxon
- soybean
Glycine maxe0 - Material
- soybean genotypese0
- Treatment
- P ratese0
- Outcome
- Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI), relative yield (RY), and physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration) were influenced by soybean genotypes and P rates.”
Claim · model-written summary
Soybean genotype and P rate influenced relative yield.
- Taxon
- soybeanGlycine maxe0
- Material
- soybean genotypese0
- Treatment
- P ratese0
- Outcome
- relative yield (RY)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI), relative yield (RY), and physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration) were influenced by soybean genotypes and P rates.”
Claim · model-written summary
Soybean genotype and P rate influenced photosynthetic rate, stomatal conductance and respiratory rate.
- Taxon
- soybeanGlycine maxe0
- Material
- soybean genotypese0
- Treatment
- P ratese0
- Outcome
- photosynthetic rate, stomatal conductance, respiratory ratee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI), relative yield (RY), and physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration) were influenced by soybean genotypes and P rates.”
Claim · model-written summary
Soybean genotype and P rate influenced internal CO2 concentration.
- Taxon
- soybeanGlycine maxe0
- Material
- soybean genotypese0
- Treatment
- P ratese0
- Outcome
- internal CO2 concentratione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight (SDW), grain yield (GY), grain harvest index (GHI), relative yield (RY), and physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration) were influenced by soybean genotypes and P rates.”
Claim · model-written summary
BMX Apolo RR, BRS 360RR and BRS 378RR were classified as non-efficient and non-responsive to P.
- Taxon
- soybeanGlycine maxe1
- Material
- BMX Apolo RR, BRS 360RR, BRS 378RRe0
- Outcome
- non-efficient and non-responsive to P applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes BMX Apolo RR, BRS 360RR, BRS 378RR, CD 219RR, DM 2302RR, TMG 7161RR, and Vtop RR were classified as non-efficient and non-responsive to P application”
e1“Soybean Genotypes”
Claim · model-written summary
CD 219RR, DM 2302RR, TMG 7161RR and Vtop RR were classified as non-efficient and non-responsive to P.
- Taxon
- soybeanGlycine maxe1
- Material
- CD 219RR, DM 2302RR, TMG 7161RR, and Vtop RRe0
- Outcome
- non-efficient and non-responsive to P applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes BMX Apolo RR, BRS 360RR, BRS 378RR, CD 219RR, DM 2302RR, TMG 7161RR, and Vtop RR were classified as non-efficient and non-responsive to P application”
e1“Soybean Genotypes”
Claim · model-written summary
BMX Potência RR, Vmax RR and FPS Solar RR were classified as efficient and responsive to P.
- Taxon
- soybeanGlycine maxe1
- Material
- BMX Potência RR, Vmax RR, FPS Solar RRe0
- Outcome
- efficient and responsivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BMX Potência RR, Vmax RR, FPS Solar RR, NA 5909RR, TMG 1066RR, and M 6210 IPRO were classified as efficient and responsive”
e1“Soybean Genotypes”
Claim · model-written summary
NA 5909RR, TMG 1066RR and M 6210 IPRO were classified as efficient and responsive to P.
- Taxon
- soybeanGlycine maxe1
- Material
- NA 5909RR, TMG 1066RR, and M 6210 IPROe0
- Outcome
- efficient and responsivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BMX Potência RR, Vmax RR, FPS Solar RR, NA 5909RR, TMG 1066RR, and M 6210 IPRO were classified as efficient and responsive”
e1“Soybean Genotypes”
Claim · model-written summary
P application increased photosynthetic rate, stomatal conductance and respiratory rate.
- Taxon
- soybeanGlycine maxe3
- Treatment
- Phosphorus applicatione0
- Outcome
- photosynthetic rate, stomatal conductance, respiratory ratee1
- Direction
- increasede0
- Comparator
- no P applicatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application increased the values of physiological components”
e1“physiological components (photosynthetic rate, stomatal conductance, respiratory rate, and internal CO2 concentration)”
e2“two P rates [0 (no P application) and 150 mg P kg−1]”
e3“Soybean Genotypes”
Claim · model-written summary
P application increased internal CO2 concentration.
- Taxon
- soybeanGlycine maxe3
- Treatment
- Phosphorus applicatione0
- Outcome
- internal CO2 concentratione1
- Direction
- increasede0
- Comparator
- no P applicatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application increased the values of physiological components”
e1“internal CO2 concentration”
e2“two P rates [0 (no P application) and 150 mg P kg−1]”
e3“Soybean Genotypes”
Claim · model-written summary
P application did not show the same increase in N, K and Ca concentration in leaves and grains.
- Taxon
- soybeanGlycine maxe2
- Organ / stage
- leaves and grainse0
- Treatment
- Phosphorus applicatione0
- Outcome
- N, K, Cae0
- Direction
- not observede0
- Comparator
- no P applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application increased the values of physiological components, which was not observed for N, K, Ca, Mg, and S concentration in the leaves and grains.”
e1“two P rates [0 (no P application) and 150 mg P kg−1]”
e2“Soybean Genotypes”
Claim · model-written summary
P application did not show the same increase in Mg and S concentration in leaves and grains.
- Taxon
- soybeanGlycine maxe2
- Organ / stage
- leaves and grainse0
- Treatment
- Phosphorus applicatione0
- Outcome
- Mg, and S concentratione0
- Direction
- not observede0
- Comparator
- no P applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application increased the values of physiological components, which was not observed for N, K, Ca, Mg, and S concentration in the leaves and grains.”
e1“two P rates [0 (no P application) and 150 mg P kg−1]”
e2“Soybean Genotypes”
Claim · model-written summary
Selecting soybean genotypes for greater P efficiency could aid cultivation in new areas or degraded pastures.
- Taxon
- SoybeanGlycine maxe0
- Outcome
- genotypes selection for increased P efficiencye0
- Qualifier
- new areas or degraded pasturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean genotypes selection for increased P efficiency could help growers overcome the problem of soybean cultivation on new areas or degraded pastures.”
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