Abstract
Salinity stress is a major abiotic factor that inhibits plant growth and yield. This study's objective was to evaluate how foliar applications of melatonin and ascorbic acid affected canola varieties under salt stress. The treatments of the study were as follows: canola varieties (a) (Oscar and Super), (b) melatonin (MT) and ascorbic acid (AsA) (control, 100 µM MT, 1 mM AsA, and 100 µM MT + 1 mM AsA), and (c) salt stress (0 mM NaCl, 75 mM NaCl, and 150 mM NaCl) levels were used. Under saline conditions, plant height was reduced by 27.8% in both varieties while the combined effect of MT and AsA improved the plant height up to 22.9% and 54.3% in Oscar and Super, respectively. Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super. The cumulative effect of MT and AsA improved all these by 152.3%, and 31.1% in Oscar and 212%, and 35% in Super, respectively. Melatonin and AsA improved the water relations attributes and root and shoot Ca 2+ and K + and decreased the accumulation of Na + ions. Overall results Oscar outer‐performed Super, and MT and AsA role in improving plant salt tolerance.
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Claims 15
Claim · model-written summary
Salinity reduced plant height by 27.8% in both varieties.
- Taxon
- Canola
.jpg?width=60)
Brassica napus var. napust0 - Material
- both varietiese0
- Treatment
- saline conditionse0
- Outcome
- plant heighte0
- Direction
- reducede0
- Value
- 27.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Under saline conditions, plant height was reduced by 27.8% in both varieties while the combined effect of MT and AsA improved the plant height up to 22.9% and 54.3% in Oscar and Super, respectively.”
t0“Canola”
Claim · model-written summary
Combined MT and AsA improved plant height in Oscar by 22.9%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Treatment
- combined effect of MT and AsAe0
- Outcome
- plant heighte0
- Direction
- improvede0
- Value
- 22.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under saline conditions, plant height was reduced by 27.8% in both varieties while the combined effect of MT and AsA improved the plant height up to 22.9% and 54.3% in Oscar and Super, respectively.”
t0“Canola”
Claim · model-written summary
Combined MT and AsA improved plant height in Super by 54.3%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Supere0
- Treatment
- combined effect of MT and AsAe0
- Outcome
- plant heighte0
- Direction
- improvede0
- Value
- 54.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under saline conditions, plant height was reduced by 27.8% in both varieties while the combined effect of MT and AsA improved the plant height up to 22.9% and 54.3% in Oscar and Super, respectively.”
t0“Canola”
Claim · model-written summary
Salinity reduced Seed yield in Oscar by 74%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Treatment
- salinity stresse0
- Outcome
- Seed yielde0
- Direction
- declinede0
- Value
- 74%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
Salinity reduced biological yield in Oscar by 44.6%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Treatment
- salinity stresse0
- Outcome
- biological yielde0
- Direction
- declinede0
- Value
- 44.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
Salinity reduced Seed yield in Super by 81.3%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Supere0
- Treatment
- salinity stresse0
- Outcome
- Seed yielde0
- Direction
- declinede0
- Value
- 81.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
Salinity reduced biological yield in Super by 34.1%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Supere0
- Treatment
- salinity stresse0
- Outcome
- biological yielde0
- Direction
- declinede0
- Value
- 34.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
MT and AsA improved Seed yield in Oscar by 152.3%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Treatment
- MT and AsAe0
- Outcome
- Seed yielde1
- Direction
- improvede0
- Value
- 152.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cumulative effect of MT and AsA improved all these by 152.3%, and 31.1% in Oscar and 212%, and 35% in Super, respectively.”
e1“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
MT and AsA improved biological yield in Oscar by 31.1%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Treatment
- MT and AsAe0
- Outcome
- biological yielde1
- Direction
- improvede0
- Value
- 31.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cumulative effect of MT and AsA improved all these by 152.3%, and 31.1% in Oscar and 212%, and 35% in Super, respectively.”
e1“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
MT and AsA improved Seed yield in Super by 212%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Supere0
- Treatment
- MT and AsAe0
- Outcome
- Seed yielde1
- Direction
- improvede0
- Value
- 212%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cumulative effect of MT and AsA improved all these by 152.3%, and 31.1% in Oscar and 212%, and 35% in Super, respectively.”
e1“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
MT and AsA improved biological yield in Super by 35%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Supere0
- Treatment
- MT and AsAe0
- Outcome
- biological yielde1
- Direction
- improvede0
- Value
- 35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cumulative effect of MT and AsA improved all these by 152.3%, and 31.1% in Oscar and 212%, and 35% in Super, respectively.”
e1“Seed yield and biological yield significantly declined under salinity stress up to 74%, and 44.6% in Oscar and 81.3%, and 34.1% in Super.”
t0“Canola”
Claim · model-written summary
Melatonin and AsA improved water relations attributes.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- Melatonin and AsAe0
- Outcome
- water relations attributese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Melatonin and AsA improved the water relations attributes and root and shoot Ca 2+ and K + and decreased the accumulation of Na + ions.”
t0“Canola”
Claim · model-written summary
Melatonin and AsA improved root and shoot Ca 2+ and K +.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- Melatonin and AsAe0
- Outcome
- root and shoot Ca 2+ and K +e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Melatonin and AsA improved the water relations attributes and root and shoot Ca 2+ and K + and decreased the accumulation of Na + ions.”
t0“Canola”
Claim · model-written summary
Melatonin and AsA decreased accumulation of Na + ions.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- Melatonin and AsAe0
- Outcome
- accumulation of Na + ionse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Melatonin and AsA improved the water relations attributes and root and shoot Ca 2+ and K + and decreased the accumulation of Na + ions.”
t0“Canola”
Claim · model-written summary
Oscar outperformed Super overall.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Oscare0
- Outcome
- outer‐performede0
- Direction
- outer‐performede0
- Comparator
- Supere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall results Oscar outer‐performed Super, and MT and AsA role in improving plant salt tolerance.”
t0“Canola”
The same questions in other papers
L-ascorbic acid · nutrient: content · Brassica napus (oilseed rape)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
melatonin · nutrient: content · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- positive
L-ascorbic acid · molecular: metabolites · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- positive
melatonin · molecular: metabolites · Brassica napus (oilseed rape)Results agree
2 papers in the same direction as this paper
- positive
- positive
melatonin · yield · Brassica napus (oilseed rape)Results agree
2 papers in the same direction as this paper
- positive
- positive
L-ascorbic acid · growth · Brassica napus (oilseed rape)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
melatonin · growth · Brassica napus (oilseed rape)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →salinity · yield · Brassica napus (oilseed rape)Results differ
18 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- no effect
16 papers more in this group
See all 20 papers →8 of 9 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.