Abstract
Soil salinization has become a major obstacle to sustainable melon production, and single-measure approaches have failed to improve crop yields and quality outcomes.In this study, we explore the effects and underlying mechanisms of a vermicompost (VC) treatment combined with silicon (Si) or salicylic acid (SA) on salt damage to muskmelon seedlings growing in moderately saline soil collected from a greenhouse.We evaluated the effects of four treatments: a control treatment (CK), 10% vermicompost (VC), 10% vermicompost combined with 0.04% Si (VC+Si), and 10% vermicompost combined with 100 mol/L salicylic acid (VC+SA).We found that vermicompost could alleviate salt damage and that the combination of vermicompost with exogenous Si or SA could amplify this effect.Compared to CK, plant height and shoot biomass were both greater when vermicompost was applied in combination with SA or Si.A chlorophyll fluorescence analysis indicated that a VC treatment can reduce damage to the PSII reaction center caused by salt stress, whereas it did not have a significant effect on Fv/Fm, Fv'/Fm' or qP.The PSII activity increased significantly under VC+SA and VC+Si compared to CK.We did not measure significant differences in the stomatal conductance, intercellular CO 2 , or transpiration rate under VC relative to CK, but the VC+Si and VC+SA treatments increased the net photosynthetic rate and intercellular CO 2 .Superoxide anion and malondialdehyde (MDA) levels were lower across all treatments relative to CK.Moreover, compared to VC, superoxide anion and MDA contents decreased significantly when VC was combined with Si or SA.Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities increased significantly under the VC+SA treatment compared to the VC treatment group.Proline, soluble sugar and protein contents were higher in all treatment groups than in CK, with the highest values observed in the VC+SA treatment group.Combined with Si or SA, a VC treatment can profoundly strengthen salt tolerance and improve plant growth compared to the application of VC alone.
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Claims 19
Claim · model-written summary
Vermicompost alleviated salt damage.
- Taxon
- Muskmelon
.jpg?width=60)
Cucumis melot0 - Treatment
- vermicomposte0
- Outcome
- salt damagee0
- Direction
- alleviatee0
- Comparator
- control treatment (CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“vermicompost could alleviate salt damage”
e1“a control treatment (CK), 10% vermicompost (VC)”
t0“Muskmelon Seedlings”
Claim · model-written summary
Vermicompost with silicon amplified salt damage alleviation.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- vermicompost with exogenous Sie0
- Outcome
- salt damagee1
- Direction
- amplifye0
- Comparator
- vermicomposte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of vermicompost with exogenous Si or SA could amplify this effect”
e1“vermicompost could alleviate salt damage”
t0“Muskmelon Seedlings”
Claim · model-written summary
Vermicompost with salicylic acid amplified salt damage alleviation.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- vermicompost with exogenous Si or SAe0
- Outcome
- salt damagee1
- Direction
- amplifye0
- Comparator
- vermicomposte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of vermicompost with exogenous Si or SA could amplify this effect”
e1“vermicompost could alleviate salt damage”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+SA increased plant height and shoot biomass relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe1
- Outcome
- plant height and shoot biomasse0
- Direction
- greatere0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to CK, plant height and shoot biomass were both greater when vermicompost was applied in combination with SA or Si”
e1“10% vermicompost combined with 100 mol/L salicylic acid (VC+SA)”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+Si increased plant height and shoot biomass relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+Sie1
- Outcome
- plant height and shoot biomasse0
- Direction
- greatere0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to CK, plant height and shoot biomass were both greater when vermicompost was applied in combination with SA or Si”
e1“10% vermicompost combined with 0.04% Si (VC+Si)”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC reduced salt-induced PSII reaction center damage.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VCe0
- Outcome
- damage to the PSII reaction centere0
- Direction
- reducee0
- Comparator
- control treatment (CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a VC treatment can reduce damage to the PSII reaction center caused by salt stress”
e1“a control treatment (CK), 10% vermicompost (VC)”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC did not significantly change Fv/Fm, Fv'/Fm' or qP.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VCe1
- Outcome
- Fv/Fm, Fv'/Fm' or qPe0
- Comparator
- CKe2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it did not have a significant effect on Fv/Fm, Fv'/Fm' or qP”
e1“a VC treatment can reduce damage to the PSII reaction center”
e2“a control treatment (CK), 10% vermicompost (VC)”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+SA significantly increased PSII activity relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe0
- Outcome
- PSII activitye0
- Direction
- increasede0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PSII activity increased significantly under VC+SA and VC+Si compared to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+Si significantly increased PSII activity relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+Sie0
- Outcome
- PSII activitye0
- Direction
- increasede0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PSII activity increased significantly under VC+SA and VC+Si compared to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC showed no significant differences in stomatal conductance, intercellular CO 2 or transpiration rate relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VCe0
- Outcome
- stomatal conductance, intercellular CO 2 , or transpiration ratee0
- Comparator
- CKe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We did not measure significant differences in the stomatal conductance, intercellular CO 2 , or transpiration rate under VC relative to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+Si increased net photosynthetic rate and intercellular CO 2.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+Sie0
- Outcome
- net photosynthetic rate and intercellular CO 2e0
- Direction
- increasede0
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the VC+Si and VC+SA treatments increased the net photosynthetic rate and intercellular CO 2”
e1“under VC relative to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+SA increased net photosynthetic rate and intercellular CO 2.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe0
- Outcome
- net photosynthetic rate and intercellular CO 2e0
- Direction
- increasede0
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the VC+Si and VC+SA treatments increased the net photosynthetic rate and intercellular CO 2”
e1“under VC relative to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
All amendment treatments lowered superoxide anion and MDA levels relative to CK.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- all treatmentse0
- Outcome
- Superoxide anion and malondialdehyde (MDA) levelse0
- Direction
- lowere0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Superoxide anion and malondialdehyde (MDA) levels were lower across all treatments relative to CK”
t0“Muskmelon Seedlings”
Claim · model-written summary
Adding silicon to VC significantly decreased superoxide anion and MDA contents relative to VC.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC was combined with Sie0
- Outcome
- superoxide anion and MDA contentse0
- Direction
- decreasede0
- Comparator
- VCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to VC, superoxide anion and MDA contents decreased significantly when VC was combined with Si or SA”
t0“Muskmelon Seedlings”
Claim · model-written summary
Adding salicylic acid to VC significantly decreased superoxide anion and MDA contents relative to VC.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe1
- Outcome
- superoxide anion and MDA contentse0
- Direction
- decreasede0
- Comparator
- VCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to VC, superoxide anion and MDA contents decreased significantly when VC was combined with Si or SA”
e1“10% vermicompost combined with 100 mol/L salicylic acid (VC+SA)”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC+SA significantly increased SOD, CAT and POD activities relative to VC.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe0
- Outcome
- Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activitiese0
- Direction
- increasede0
- Comparator
- VCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities increased significantly under the VC+SA treatment compared to the VC treatment group”
t0“Muskmelon Seedlings”
Claim · model-written summary
All treatments increased proline, soluble sugar and protein contents relative to CK, with the highest values under VC+SA.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- all treatment groupse0
- Outcome
- Proline, soluble sugar and protein contentse0
- Direction
- highere0
- Qualifier
- highest values observed in the VC+SA treatment groupe0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline, soluble sugar and protein contents were higher in all treatment groups than in CK, with the highest values observed in the VC+SA treatment group”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC with silicon was interpreted to strengthen salt tolerance and growth relative to VC alone.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- Combined with Sie0
- Outcome
- salt tolerance and improve plant growthe0
- Direction
- strengthene0
- Comparator
- VC alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined with Si or SA, a VC treatment can profoundly strengthen salt tolerance and improve plant growth compared to the application of VC alone”
t0“Muskmelon Seedlings”
Claim · model-written summary
VC with salicylic acid was interpreted to strengthen salt tolerance and growth relative to VC alone.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- VC+SAe1
- Outcome
- salt tolerance and improve plant growthe0
- Direction
- strengthene0
- Comparator
- VC alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined with Si or SA, a VC treatment can profoundly strengthen salt tolerance and improve plant growth compared to the application of VC alone”
e1“10% vermicompost combined with 100 mol/L salicylic acid (VC+SA)”
t0“Muskmelon Seedlings”
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salicylic acid · pest · Cucumis melo (muskmelon)Results agree
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silicon atom · physiology: photosynthesis · Cucumis melo (muskmelon)Results agree
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salicylic acid · physiology: oxidative · Cucumis melo (muskmelon)Results agree
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See all 5 papers →8 of 15 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.