Abstract
An experiment was performed in order to study the applicability of light-response models for summer maize (Zea mays L.) by using rectangular hyperbola model, nonrectangular hyperbola model, exponential model, binomial regression model, and modified rectangular hyperbola model (Ye model), respectively. Our results showed that the fitted effect of Ye model was best and photosynthetic parameters were closest to the observation. The photoinhibition coefficient was significantly negatively correlated with the light-saturation point (Is), the light-saturation coefficient (γ), and maximum net photosynthetic rate at light-saturation point (PNmax), respectively. PNmax and Is, apparent quantum yield, and γ performed significantly positive relationship, respectively. When the soil volumetric water content varied from 13 to 21%, PNmax had significant positive correlation with the soil water content and stomatal conductance. Under water and temperature stress, the net photosynthetic rate decreased and photoinhibition occurred, which could be well simulated by the Ye model. It seems that Ye model would have more applications, especially for the regions with strong solar radiation.
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Claims 7
Claim · model-written summary
The modified rectangular hyperbola (Ye) model fitted best among the compared light-response models, and its photosynthetic parameters were closest to the observations.
- Outcome
- fitted effecte2
- Direction
- beste2
- Comparator
- rectangular hyperbola model, nonrectangular hyperbola model, exponential model, binomial regression modele1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“summer maize (Zea mays L.)”
e1“applicability of light-response models for summer maize (Zea mays L.) by using rectangular hyperbola model, nonrectangular hyperbola model, exponential model, binomial regression model”
e2“the fitted effect of Ye model was best and photosynthetic parameters were closest to the observation”
Claim · model-written summary
The photoinhibition coefficient was significantly negatively correlated with the light-saturation point, the light-saturation coefficient and the maximum net photosynthetic rate at light saturation in summer maize.
- Outcome
- photoinhibition coefficiente1
- Direction
- negatively correlatede1
- Comparator
- light-saturation point (Is), the light-saturation coefficient (γ), and maximum net photosynthetic rate at light-saturation point (PNmax)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“summer maize (Zea mays L.)”
e1“The photoinhibition coefficient was significantly negatively correlated with the light-saturation point (Is), the light-saturation coefficient (γ), and maximum net photosynthetic rate at light-saturation point (PNmax)”
Claim · model-written summary
The maximum net photosynthetic rate at light saturation (PNmax) was significantly positively related to the light-saturation point, apparent quantum yield and the light-saturation coefficient in summer maize.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“summer maize (Zea mays L.)”
e1“PNmax and Is, apparent quantum yield, and γ performed significantly positive relationship, respectively”
Claim · model-written summary
When soil volumetric water content varied from 13 to 21%, PNmax was significantly positively correlated with soil water content and stomatal conductance in summer maize.
- Outcome
- PNmaxe1
- Direction
- positive correlatione1
- Qualifier
- soil volumetric water content varied from 13 to 21%e1
- Comparator
- soil water content and stomatal conductancee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“summer maize (Zea mays L.)”
e1“When the soil volumetric water content varied from 13 to 21%, PNmax had significant positive correlation with the soil water content and stomatal conductance”
Claim · model-written summary
Under water and temperature stress, the net photosynthetic rate of summer maize decreased and photoinhibition occurred.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“summer maize (Zea mays L.)”
e1“Under water and temperature stress, the net photosynthetic rate decreased and photoinhibition occurred”
Claim · model-written summary
The decrease in photosynthesis and the photoinhibition under water and temperature stress could be well simulated by the Ye model.
- Outcome
- well simulatede1
Not reportedComparator
Verbatim
e1“which could be well simulated by the Ye model”
Claim · model-written summary
The authors suggest the Ye model would have more applications, especially in regions with strong solar radiation.
Not reportedTaxon
Verbatim
e1“It seems that Ye model would have more applications, especially for the regions with strong solar radiation”