Abstract
In this study, the salt tolerance of yellow peach varieties (‘Golden gold’) was identified and analyzed in order to determine varieties with excellent resistance. Photosynthetic parameters, the content of Na+, K+, and malondialdehyde (MDA), the activity of antioxidant enzymes and other physiological indexes of ‘Golden gold’ peaches were measured after the introduction of salt stress using NaCl. The results showed that under salt stress, the stomatal conductance (Gs), net photosynthetic rate (Pn), transpiration ratio (Tr), water utilization ratio (We), activities of photocooperative enzymes (RuBPCase and FBPase), and K+ content in the roots and leaves of all varieties decreased, and among these physiological indexes, there was no significant difference between J2+S and the blank control (J). The contents of MDA and proline in J2+S leaves increased the least, so the effect of salt stress was minimal. The superoxide dismutase (SOD) activity, peroxidase (POD) activity, catalase (CAT) activity, and Na+ content in the roots and leaves of all ‘Golden gold’ peach varieties increased, and the difference between J2+S and J was significant, with the largest increase. The results of principal component analysis, membership function analysis, and comprehensive evaluation showed that the salt tolerance of nine ‘Golden gold’ peach varieties was ranked as follows: ‘Golden gold’ No. 2 > ‘Golden gold’ No. 5 > ‘Golden gold’ No. 8 > ‘Golden gold’ No. 6 > ‘Golden gold’ No. 1 > ‘Golden gold’ No. 3 > ‘Golden gold’ Parents > ‘Golden gold’ No. 4 > ‘Golden gold’ No. 7. Correlation analysis showed that Pn and We were positively correlated with the D value (p < 0.01), and Tr, SOD, and CAT were also positively correlated with the D value (p < 0.05). Pn, We, Tr, SOD, and CAT can be used as the main reference indexes for screening the salt-tolerant varieties of the ‘Golden gold’ series.
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Claims 13
Claim · model-written summary
Salt stress decreased stomatal conductance, photosynthesis and transpiration in all varieties.
- Taxon
- Peach
Prunus persicat0 - Material
- ‘Golden Gold’t0
- Treatment
- salt stresse0
- Outcome
- stomatal conductance (Gs), net photosynthetic rate (Pn), transpiration ratio (Tr)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under salt stress, the stomatal conductance (Gs), net photosynthetic rate (Pn), transpiration ratio (Tr), water utilization ratio (We), activities of photocooperative enzymes (RuBPCase and FBPase), and K+ content in the roots and leaves of all varieties decreased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
Claim · model-written summary
Salt stress decreased water utilization ratio in all varieties.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden Gold’t0
- Treatment
- salt stresse1
- Outcome
- water utilization ratio (We)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water utilization ratio (We), activities of photocooperative enzymes (RuBPCase and FBPase), and K+ content in the roots and leaves of all varieties decreased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
Salt stress decreased RuBPCase and FBPase activities in all varieties.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden Gold’t0
- Treatment
- salt stresse1
- Outcome
- activities of photocooperative enzymes (RuBPCase and FBPase)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of photocooperative enzymes (RuBPCase and FBPase), and K+ content in the roots and leaves of all varieties decreased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
Salt stress decreased root and leaf K+ content in all varieties.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden Gold’t0
- Treatment
- salt stresse1
- Outcome
- K+ content in the roots and leavese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K+ content in the roots and leaves of all varieties decreased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
J2+S and blank control did not differ significantly on the listed physiological indexes.
- Taxon
- PeachPrunus persicat0
- Material
- J2+Se0
- Outcome
- physiological indexese0
- Direction
- no significant differencee0
- Comparator
- blank control (J)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“among these physiological indexes, there was no significant difference between J2+S and the blank control (J).”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
Claim · model-written summary
J2+S leaves had the smallest increase in MDA and proline content.
- Taxon
- PeachPrunus persicat0
- Material
- J2+Se0
- Organ / stage
- leavese0
- Treatment
- salt stresse1
- Outcome
- contents of MDA and prolinee0
- Direction
- increased the leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of MDA and proline in J2+S leaves increased the least”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
Salt stress increased SOD, POD and CAT activities in all Golden Gold peach varieties.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden gold’e0
- Treatment
- salt stresse1
- Outcome
- superoxide dismutase (SOD) activity, peroxidase (POD) activity, catalase (CAT) activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superoxide dismutase (SOD) activity, peroxidase (POD) activity, catalase (CAT) activity, and Na+ content in the roots and leaves of all ‘Golden gold’ peach varieties increased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
Salt stress increased root and leaf Na+ content in all Golden Gold peach varieties.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden gold’e0
- Treatment
- salt stresse1
- Outcome
- Na+ content in the roots and leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Na+ content in the roots and leaves of all ‘Golden gold’ peach varieties increased”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
Claim · model-written summary
J2+S showed the largest significant increase in the listed enzyme activities and Na+ relative to J.
- Taxon
- PeachPrunus persicat0
- Material
- J2+Se0
- Treatment
- salt stresse1
- Outcome
- superoxide dismutase (SOD) activity, peroxidase (POD) activity, catalase (CAT) activity, and Na+ contente2
- Direction
- largest increasee0
- Comparator
- Je0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the difference between J2+S and J was significant, with the largest increase.”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
e1“introduction of salt stress using NaCl”
e2“The superoxide dismutase (SOD) activity, peroxidase (POD) activity, catalase (CAT) activity, and Na+ content”
Claim · model-written summary
Composite analysis ranked Golden Gold No. 2 highest and No. 7 lowest in salt tolerance.
- Taxon
- PeachPrunus persicat0
- Outcome
- salt tolerancee0
- Qualifier
- ‘Golden gold’ No. 2 > ‘Golden gold’ No. 5 > ‘Golden gold’ No. 8 > ‘Golden gold’ No. 6 > ‘Golden gold’ No. 1 > ‘Golden gold’ No. 3 > ‘Golden gold’ Parents > ‘Golden gold’ No. 4 > ‘Golden gold’ No. 7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the salt tolerance of nine ‘Golden gold’ peach varieties was ranked as follows: ‘Golden gold’ No. 2 > ‘Golden gold’ No. 5 > ‘Golden gold’ No. 8 > ‘Golden gold’ No. 6 > ‘Golden gold’ No. 1 > ‘Golden gold’ No. 3 > ‘Golden gold’ Parents > ‘Golden gold’ No. 4 > ‘Golden gold’ No. 7.”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
Claim · model-written summary
Pn and We were positively correlated with D value at p < 0.01.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden Gold’t0
- Outcome
- D valuee0
- Direction
- positively correlatede0
- Qualifier
- p < 0.01e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pn and We were positively correlated with the D value (p < 0.01)”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
Claim · model-written summary
Tr, SOD and CAT were positively correlated with D value at p < 0.05.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Golden Gold’t0
- Outcome
- D valuee0
- Direction
- positively correlatede0
- Qualifier
- p < 0.05e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tr, SOD, and CAT were also positively correlated with the D value (p < 0.05)”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
Claim · model-written summary
The authors recommend Pn, We, Tr, SOD and CAT as screening indexes for salt-tolerant Golden Gold varieties.
- Taxon
- PeachPrunus persicat0
- Outcome
- main reference indexes for screening the salt-tolerant varieties of the ‘Golden gold’ seriese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pn, We, Tr, SOD, and CAT can be used as the main reference indexes for screening the salt-tolerant varieties of the ‘Golden gold’ series.”
t0“Analysis of Salt Tolerance of ‘Golden Gold’ Peach Varieties”
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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.