Abstract
Non-photochemical quenching (NPQ) values for utilizing them to detect osmotic tolerance in plants were examined with two different soybean cultivars, an osmotic tolerant soybean (Shinpaldalkong 2) and a control soybean (Taekwangkong). Two different stresses were applied to the cultivars as the restricted irrigations of 200 and 50 ml water pot-1 d-1 for 5 days for a control and a drought stress, respectively, and a sodium chloride solution of 200 mmol for 6 days for a salt stress. The intact leaves of the two cultivars after treatment were used to measure chlorophyll fluorescence parameters, maximum efficiencies of photosystem II photochemistry (Fv/Fm), efficiencies of photosystem II photochemistry (Φ PSII), CO2 assimilation rate (PN), and NPQ. Leaf water potentials of the two cultivars decreased from – 0.2 to – 0.8MPa by a drought treatment and from – 0.7 to – 1.7MPa by a salt treatment. Leaf water content of Shinpaldalkong 2 after a salt treatment was less decreased than that of Taekwangkong. Fv/Fm values of both cultivars were not changed, while Φ PSII and PN were decreased proportionally to leaf water potential decrease. The response of NPQ was occurred in Shinpaldalkong 2 under the drought and salt stresses. With Taekwangkong cultivar, only drought stress referred NPQ response. The cultivar differences on chlorophyll fluorescence parameters were found in the relationships between Φ PSII and PN, and between NPQ and Φ PSII. Although the positive relationships between Φ PSII and PN were established on all treatments of both cultivars, the decreasing rate of Φ PSII to PN was smaller in Shinpaldalkong 2 than Taekwangkong. The NPQ was increased
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Claims 14
Claim · model-written summary
Drought decreased leaf water potential from – 0.2 to – 0.8MPa in both cultivars.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- drought treatmente0
- Outcome
- Leaf water potentialse0
- Direction
- decreasede0
- Value
- – 0.2 to – 0.8MPae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water potentials of the two cultivars decreased from – 0.2 to – 0.8MPa by a drought treatment”
t0“Soybean Plants”
Claim · model-written summary
Salt treatment decreased leaf water potential from – 0.7 to – 1.7MPa in both cultivars.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- salt treatmente0
- Outcome
- Leaf water potentialse1
- Direction
- decreasede1
- Value
- – 0.7 to – 1.7MPae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from – 0.7 to – 1.7MPa by a salt treatment”
e1“Leaf water potentials of the two cultivars decreased from – 0.2 to – 0.8MPa by a drought treatment”
t0“Soybean Plants”
Claim · model-written summary
After salt treatment, Shinpaldalkong 2 leaf water content decreased less than Taekwangkong.
- Taxon
- SoybeanGlycine maxt0
- Material
- Shinpaldalkong 2e0
- Treatment
- salt treatmente0
- Outcome
- Leaf water contente0
- Direction
- less decreasede0
- Comparator
- Taekwangkonge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water content of Shinpaldalkong 2 after a salt treatment was less decreased than that of Taekwangkong.”
t0“Soybean Plants”
Claim · model-written summary
Fv/Fm did not change in either cultivar.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- Fv/Fm valuese0
- Direction
- not changede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fv/Fm values of both cultivars were not changed”
t0“Soybean Plants”
Claim · model-written summary
Φ PSII decreased in proportion to declining leaf water potential.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- leaf water potential decreasee0
- Outcome
- Φ PSIIe0
- Direction
- decreasede0
- Qualifier
- leaf water potential decreasee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Φ PSII and PN were decreased proportionally to leaf water potential decrease”
t0“Soybean Plants”
Claim · model-written summary
PN decreased in proportion to declining leaf water potential.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- leaf water potential decreasee0
- Outcome
- PNe0
- Direction
- decreasede0
- Qualifier
- leaf water potential decreasee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Φ PSII and PN were decreased proportionally to leaf water potential decrease”
t0“Soybean Plants”
Claim · model-written summary
Shinpaldalkong 2 showed an NPQ response under drought stress.
- Taxon
- SoybeanGlycine maxt0
- Material
- Shinpaldalkong 2e0
- Treatment
- droughte0
- Outcome
- response of NPQe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of NPQ was occurred in Shinpaldalkong 2 under the drought and salt stresses.”
t0“Soybean Plants”
Claim · model-written summary
Shinpaldalkong 2 showed an NPQ response under salt stress.
- Taxon
- SoybeanGlycine maxt0
- Material
- Shinpaldalkong 2e0
- Treatment
- salt stressese0
- Outcome
- response of NPQe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of NPQ was occurred in Shinpaldalkong 2 under the drought and salt stresses.”
t0“Soybean Plants”
Claim · model-written summary
Taekwangkong showed an NPQ response only to drought stress.
- Taxon
- SoybeanGlycine maxt0
- Material
- Taekwangkonge0
- Treatment
- drought stresse0
- Outcome
- NPQ responsee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With Taekwangkong cultivar, only drought stress referred NPQ response.”
t0“Soybean Plants”
Claim · model-written summary
The relationship of Φ PSII to PN differed between cultivars.
- Taxon
- SoybeanGlycine maxt0
- Material
- cultivare0
- Outcome
- relationships between Φ PSII and PNe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar differences on chlorophyll fluorescence parameters were found in the relationships between Φ PSII and PN, and between NPQ and Φ PSII.”
t0“Soybean Plants”
Claim · model-written summary
The relationship of NPQ to Φ PSII differed between cultivars.
- Taxon
- SoybeanGlycine maxt0
- Material
- cultivare0
- Outcome
- between NPQ and Φ PSIIe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar differences on chlorophyll fluorescence parameters were found in the relationships between Φ PSII and PN, and between NPQ and Φ PSII.”
t0“Soybean Plants”
Claim · model-written summary
Φ PSII and PN were positively related across treatments in both cultivars.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- all treatmentse0
- Outcome
- relationships between Φ PSII and PNe0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the positive relationships between Φ PSII and PN were established on all treatments of both cultivars”
t0“Soybean Plants”
Claim · model-written summary
Φ PSII declined relative to PN at a smaller rate in Shinpaldalkong 2 than Taekwangkong.
- Taxon
- SoybeanGlycine maxt0
- Material
- Shinpaldalkong 2e0
- Outcome
- decreasing rate of Φ PSII to PNe0
- Direction
- smallere0
- Comparator
- Taekwangkonge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decreasing rate of Φ PSII to PN was smaller in Shinpaldalkong 2 than Taekwangkong”
t0“Soybean Plants”
Claim · model-written summary
NPQ increased, but the supplied abstract ends before stating the full result.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- NPQe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NPQ was increased”
t0“Soybean Plants”
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