Abstract
Eggplant cultivar 'Changhong' was subjected to low temperature treatment of 15/10C (day/night) in the artificial climate chamber. The effects of exogenous melatonin (MT) on the photosynthetic of leaves under low temperature and weak light stress was investigated. The results showed that with the increasing of melatonin concentration, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate(Tr), and light use efficiency (LUE) was enhanced first, and then decreased, the CO 2 concentration of intercellular (Ci) remained relatively stable, and water use efficiency(WUE) showed a downward trend. Thus, melatonin could siganificantly improve the photosynthetic capacity of eggplant under low temperature and weak light stress, and 200 molL -1 was the best concentration.
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Claims 5
Claim · model-written summary
Net photosynthetic rate, stomatal conductance and transpiration rate first rose then fell with increasing melatonin concentration.
- Taxon
- Eggplant
Solanum melongenat0 - Treatment
- increasing of melatonin concentratione0
- Outcome
- net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate(Tr)e0
- Direction
- enhanced first, and then decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the increasing of melatonin concentration, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate(Tr), and light use efficiency (LUE) was enhanced first, and then decreased”
t0“Eggplant”
Claim · model-written summary
Light use efficiency first rose then fell with increasing melatonin concentration.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- increasing of melatonin concentratione0
- Outcome
- light use efficiency (LUE)e0
- Direction
- enhanced first, and then decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the increasing of melatonin concentration, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate(Tr), and light use efficiency (LUE) was enhanced first, and then decreased”
t0“Eggplant”
Claim · model-written summary
Intercellular CO2 concentration remained relatively stable as melatonin concentration increased.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- Exogenous Melatonint0
- Outcome
- CO 2 concentration of intercellular (Ci)e0
- Direction
- remained relatively stablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CO 2 concentration of intercellular (Ci) remained relatively stable”
t0“Effects of Exogenous Melatonin on Photosynthetic Characteristics of Eggplant Seedlings under Low Temperature and Weak Light Stress”
Claim · model-written summary
Water use efficiency trended downward with increasing melatonin concentration.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- Exogenous Melatonint0
- Outcome
- water use efficiency(WUE)e0
- Direction
- downward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water use efficiency(WUE) showed a downward trend”
t0“Effects of Exogenous Melatonin on Photosynthetic Characteristics of Eggplant Seedlings under Low Temperature and Weak Light Stress”
Claim · model-written summary
The authors identified 200 molL -1 as the best melatonin concentration for photosynthetic capacity under low temperature and weak light.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- melatonine0
- Outcome
- photosynthetic capacitye0
- Direction
- improvee0
- Value
- 200 molL -1e0
- Qualifier
- under low temperature and weak light stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin could siganificantly improve the photosynthetic capacity of eggplant under low temperature and weak light stress, and 200 molL -1 was the best concentration”
The same questions in other papers
melatonin · physiology: gas exchange · Solanum melongena (eggplant)Positive and negative results
1 in the opposite direction
- positive
melatonin · physiology: water · Solanum melongena (eggplant)Results agree
1 paper in the same direction as this paper
- negative
melatonin · physiology: photosynthesis · Solanum melongena (eggplant)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.