Claim · model-written summary
G. max stems did not show positive net photosynthesis.
- Taxon
- G. max
Glycine maxe4 - Material
- var. essexe0
- Organ / stage
- stemse4
- Outcome
- positive net photosynthesise4
Not reportedGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max var. essex (soybean) and Sparteum junceum (Spanish broom)”
e4“Mean midday stem photosynthesis of S. junceum was 6.5 μmol CO2 m–2 s–1; however, positive net photosynthesis did not occur in G. max stems”
Title
Erik T. Nilsen; Yijia Bao American Journal of Botany 1990. doi:10.2307/2444572
Other claims from this paper (7)
- Observation Mean midday leaf photosynthesis of G. max (var. essex) was 12 μmol CO2 m–2 s–1.
- Observation Mean midday leaf photosynthesis of S. junceum was 17 μmol CO2 m–2 s–1.
- Observation Mean midday stem photosynthesis of S. junceum was 6.5 μmol CO2 m–2 s–1.
- Intervention effect Blocking stem photosynthesis with black straws reduced S. junceum growth by 18% relative to clear straws.
- Intervention effect Blocking the stem carbon contribution did not influence whole plant growth of G. max.
- Intervention effect Water stress caused a proportionally greater decrease in S. junceum leaf photosynthesis than in stem photosynthesis.
- Intervention effect Under reduced water availability, the stem contribution to canopy carbon gain of S. junceum increased from 38% to 48%.