Claim · model-written summary
Soybean variety Richland had the highest seedling photosynthetic rate, 24 mg CO2 dm-2 hr-1, at saturating light.
- Taxon
- Soybean
Glycine maxt0 - Material
- ‘Richland’e0
- Outcome
- rate of photosynthesise0
- Value
- 24 mg CO 2 dm −2 hr −1e0
- Qualifier
- saturating light intensitye0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of photosynthesis for seedlings of 36 varieties of soybean [ Glycine max (L.) Merrill] ranged from 12 mg CO 2 assimilated dm −2 hr −1 in ‘Patterson’ to 24 mg CO 2 dm −2 hr −1 in ‘Richland’ at saturating light intensity”
t0“Soybean”
Title
Varietal Effects in Soybean Photosynthesis and Photorespiration1
P. E. Curtis; W. L. Ogren; R. H. Hageman Crop Science 1969. doi:10.2135/cropsci1969.0011183x000900030021x
Other claims from this paper (9)
- Observation Soybean variety Patterson had the lowest seedling photosynthetic rate, 12 mg CO2 dm-2 hr-1, at saturating light.
- Association Comparing photosynthetic rate and average seed yield of several varieties indicates varietal yield differences are not caused by differences in photosynthetic rate.
- Observation In some instances yield can be related to total photosynthate production.
- Intervention effect The photosynthetic rate of Wayne seedlings was identical when grown in vermiculite, sterilized soil, or soils of medium and high productivity.
- Intervention effect Photosynthetic rates in air were 5 to 6 mg CO2 dm-2 hr-1 less than in a low oxygen atmosphere.
- Mechanism Calculations indicate slightly more than one-half of the decrease in photosynthesis in air is due to photorespiration and the remainder to oxygen inhibition of photosynthesis.
- Observation The compensation point at 43 kilolux was approximately 40 ppm CO2 for all varieties tested.
- Association Leaf glycolate oxidase activity showed no correlation with photorespiratory activities.
- Mechanism The authors suggest glycolate oxidase may be required for photorespiration but is not the limiting factor.