Abstract
Abstract The objective of this experiment was to measure the impact of molybdenum (Mo) addition to the soil on changes in rate of photosynthesis (PN), specific root nodule nitrogenase activity (SNA), chlorophyll ‐ (Chl‐a) and (Chl‐b) and biomass of soybean (Glycine max L. Merrill), exposed to carbon dioxide (CO2) (350, 400, or 450 μL/L) for 5 d during its sensitive growth stage (R2). Plants grown in soil with Mo (0, 0.5, or 1.0 mg/kg soil dry weight) were exposed to carbon dioxide (CO2) in open‐top field chambers for 12 h/d for 5 d with a nitrogen (N)‐free fertilizer. Increasing CO2 levels reduced SNA and increased both Chl‐a and Chl‐b. Addition of 1 mg/kg Mo significantiy reduced SNA for plants grown with 350 μL/L CO2 with no change in PN.
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Claims 4
Claim · model-written summary
Increasing CO2 levels reduced root nodule nitrogenase activity (SNA) in soybean.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Increasing CO2 levelse1
- Outcome
- SNAe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean response”
e1“Increasing CO2 levels reduced SNA”
Claim · model-written summary
Increasing CO2 levels increased both chlorophyll a and chlorophyll b in soybean.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Increasing CO2 levelse2
- Outcome
- Chl‐a and Chl‐be2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean response”
e2“Increasing CO2 levels reduced SNA and increased both Chl‐a and Chl‐b”
Claim · model-written summary
Addition of 1 mg/kg Mo significantly reduced SNA in soybean grown at 350 μL/L CO2.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Addition of 1 mg/kg Moe3
- Outcome
- SNAe3
- Direction
- reducede3
- Qualifier
- 350 μL/L CO2e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean response”
e3“Addition of 1 mg/kg Mo significantiy reduced SNA for plants grown with 350 μL/L CO2 with no change in PN”
Claim · model-written summary
Addition of 1 mg/kg Mo did not change the photosynthesis rate (PN) of soybean grown at 350 μL/L CO2.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Addition of 1 mg/kg Moe3
- Outcome
- PNe3
- Direction
- no changee3
- Qualifier
- 350 μL/L CO2e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean response”
e3“Addition of 1 mg/kg Mo significantiy reduced SNA for plants grown with 350 μL/L CO2 with no change in PN”
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