Abstract
Broad bean (Vicia faba L.) seedlings were investigated on their growth and photosynthesis responses to simulating 4.52 kJ·m-2·d-1UVBBE of ultravioletB(UVB,280~320 nm) and 700 μmol·mol-1 CO2 concentration.The results showed that enhanced UVB radiation significantly decreased the plant height,leaf area and total biomass.Increasing CO2 concentration was opposite to that.The action of UVB/CO2 on plants grew with the treatment time.The combined effect of enhanced UVB and high CO2 on the growth of broad bean seedling was far less.On the other hand,enhanced UVB radiation also decreased the photosynthetic rate,stomata conductance and water use efficiency of plants.High CO2 turned out contrary to them.The promotion of CO2 on the plants was bigger than the inhibition of UVB on that.And the photosynthetic parameters of the plants growing under enhanced UVB and high CO2 were the same with the control for the most part.The present work shows that the combined effect of enhanced UVB and high CO2 on broad bean seedling is a kind of match action.
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Claims 5
Claim · model-written summary
Enhanced UV-B reduced broad bean height, leaf area and biomass.
- Taxon
- Broad bean
Vicia fabae1 - Treatment
- enhanced UVB radiatione0
- Outcome
- plant height,leaf area and total biomasse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced UVB radiation significantly decreased the plant height,leaf area and total biomass”
e1“Broad bean (Vicia faba L.) seedlings”
Claim · model-written summary
Higher CO2 increased broad bean height, leaf area and biomass.
- Taxon
- Broad beanVicia fabae1
- Treatment
- Increasing CO2 concentratione0
- Outcome
- plant height,leaf area and total biomasse2
- Direction
- oppositee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing CO2 concentration was opposite to that”
e1“Broad bean (Vicia faba L.) seedlings”
e2“plant height,leaf area and total biomass”
Claim · model-written summary
Enhanced UV-B reduced photosynthetic rate, stomatal conductance and water-use efficiency.
- Taxon
- Broad beanVicia fabae1
- Treatment
- enhanced UVB radiatione0
- Outcome
- photosynthetic rate,stomata conductance and water use efficiencye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced UVB radiation also decreased the photosynthetic rate,stomata conductance and water use efficiency”
e1“Broad bean (Vicia faba L.) seedlings”
Claim · model-written summary
High CO2 had the opposite effect on photosynthetic parameters.
- Taxon
- Broad beanVicia fabae1
- Treatment
- High CO2e0
- Outcome
- photosynthetic rate,stomata conductance and water use efficiencye2
- Direction
- contrarye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 turned out contrary to them”
e1“Broad bean (Vicia faba L.) seedlings”
e2“photosynthetic rate,stomata conductance and water use efficiency”
Claim · model-written summary
Under combined enhanced UV-B and high CO2, most photosynthetic parameters matched controls.
- Taxon
- Broad beanVicia fabae1
- Treatment
- enhanced UVB and high CO2e0
- Outcome
- photosynthetic parameterse0
- Direction
- the samee0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic parameters of the plants growing under enhanced UVB and high CO2 were the same with the control for the most part”
e1“Broad bean (Vicia faba L.) seedlings”
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See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.