Claim · model-written summary
At 2.5%, net photosynthetic rate decreased by 22.7% relative to control.
- Taxon
- strawberry
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Fragaria ×ananassae1 - Treatment
- 2.5%e1
- Outcome
- net photosynthetic rate(Pn)e0
- Direction
- decreasede0
- Value
- 22.7%e0
- Comparator
- controle0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“The net photosynthetic rate(Pn)decreased by 22.7%, 25.3%, 43.2% and 43.0% companed to control, respectively.”
e1“five concentrations of decomposed substance of strawberry root(0.00%,2.5%,5.0%,10.0% and 20.0%)”
Title
DU Guo-don 2015
Other claims from this paper (18)
- Intervention effect Root decomposed substance inhibited strawberry stalk diameter and petiole length.
- Intervention effect After 70 days, strawberry leaf area decreased by 16.3% at the first nonzero root decomposition product concentration relative to control.
- Intervention effect At 5.0%, strawberry leaf area decreased by 18.8% after 70 days relative to control.
- Intervention effect At 10.0%, strawberry leaf area decreased by 27.1% after 70 days relative to control.
- Intervention effect At 20.0%, strawberry leaf area decreased by 38.8% after 70 days relative to control.
- Intervention effect Increasing root decomposition substance concentration significantly decreased leaf chlorophyll content.
- Intervention effect Increasing root decomposition substance concentration decreased chlorophyll a/b.
- Intervention effect At 5.0%, net photosynthetic rate decreased by 25.3% relative to control.
- Intervention effect At 10.0%, net photosynthetic rate decreased by 43.2% relative to control.
- Intervention effect At 20.0%, net photosynthetic rate decreased by 43.0% relative to control.
- Intervention effect Stomatal conductance and intercellular CO2 concentration changed under root decomposition product treatment.
- Intervention effect Low concentrations did not significantly damage electron transfer on the PSⅡ reaction center acceptor side.
- Intervention effect High concentrations harmed the PSⅡ reaction center, oxygen-evolving complex and PSⅡ electron acceptor side.
- Mechanism Damage under high concentrations caused declines in maximum photochemical efficiency and PSⅡ photochemical performance index.
- Intervention effect PSI activity increased as root decomposed substance concentration increased.
- Mechanism Root decomposition products reduced PS I and PS II apparatus function, affecting growth and development.
- Intervention effect Higher root decomposition product concentrations caused stronger inhibition of development and physiological metabolism.
- Mechanism The authors conclude that root decomposed substance contributes importantly to strawberry continuous cropping obstacles.