Abstract
Although the individual influences of silicon (Si) and melatonin (MT) have been widely studied under various abiotic stresses, little is known about their interaction under drought stress. In this study, an experiment in pots was carried out to investigate the potential of an individual or combined foliar application of silicon (Si) and melatonin (ML) (control (ck), water spray, 4.0 mM Si, 200 µM ML, and 4.0 mM Si + 200 µM ML) on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress) in order to check of grain yield and some important physiological characteristics. Under drought stress conditions, grain yield and yield attributes, water content and photosynthetic efficiency of wheat crops were significantly decreased. Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b), leaf relative water content (RWC), proline, total soluble sugars, and total soluble protein. As well as, the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML. This improvement was correlated with an obvious decrease in the levels of MDA, H2O2, and electrolyte leakage and increased water use efficiency. Conclusively, the combination of Si + ML significantly enhanced the 20.21% yield and various morpho-physiological attributes of drought-stressed wheat plants and can be recommended as a promising treatment to enhance wheat productivity in drought-affected regions. Additionally, the results of this study may open up a whole new area of research opportunities at the transcriptional level to further understand the mechanisms underlying how Si + ML integrates and interacts with plants under drought stress.
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Claims 11
Claim · model-written summary
Drought stress significantly decreased grain yield and yield attributes of wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- drought stresse1
- Outcome
- grain yield and yield attributese0
- Direction
- significantly decreasede0
- Comparator
- 80% well-water conditione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress conditions, grain yield and yield attributes, water content and photosynthetic efficiency of wheat crops were significantly decreased”
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
Claim · model-written summary
Drought stress significantly decreased water content and photosynthetic efficiency of wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- drought stresse1
- Outcome
- water content and photosynthetic efficiencye0
- Direction
- significantly decreasede0
- Comparator
- 80% well-water conditione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress conditions, grain yield and yield attributes, water content and photosynthetic efficiency of wheat crops were significantly decreased”
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
Claim · model-written summary
Combined Si + ML application significantly improved leaf pigments of drought-stressed wheat.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- leafe2
- Treatment
- Si+ MLe2
- Outcome
- leaf pigmentse2
- Direction
- significantly improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e2“Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b)”
Claim · model-written summary
Si + ML application significantly improved leaf relative water content and proline in wheat.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- leafe3
- Treatment
- Si+ MLe3
- Outcome
- leaf relative water content (RWC), prolinee3
- Direction
- significantly improvede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e3“Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b), leaf relative water content (RWC), proline”
Claim · model-written summary
Si + ML application significantly improved total soluble sugars and total soluble protein in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Si+ MLe4
- Outcome
- total soluble sugars, and total soluble proteine4
- Direction
- significantly improvede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e4“Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b), leaf relative water content (RWC), proline, total soluble sugars, and total soluble protein”
Claim · model-written summary
Combined Si + ML effectively boosted the activities of catalase and superoxide dismutase in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- combined application of Si + MLe5
- Gene
- catalase (CAT), superoxide dismutase (SOD)e5
- Outcome
- activities of important antioxidant enzymese5
- Direction
- effectively boostede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e5“the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML”
Claim · model-written summary
Combined Si + ML effectively boosted the activities of peroxidase and ascorbate peroxidase in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- combined application of Si + MLe5
- Gene
- peroxidase (POD) and ascorbate peroxidase (APX)e5
- Outcome
- activities of important antioxidant enzymese5
- Direction
- effectively boostede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e5“the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML”
Claim · model-written summary
The combined Si + ML treatment was correlated with a decrease in MDA, H2O2 and electrolyte leakage in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- combined application of Si + MLe5
- Outcome
- levels of MDA, H2O2, and electrolyte leakagee6
- Direction
- decreasee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e5“the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML”
e6“This improvement was correlated with an obvious decrease in the levels of MDA, H2O2, and electrolyte leakage and increased water use efficiency”
Claim · model-written summary
The combined Si + ML treatment was correlated with increased water use efficiency in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- combined application of Si + MLe5
- Outcome
- water use efficiencye6
- Direction
- increasede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress)”
e5“the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML”
e6“This improvement was correlated with an obvious decrease in the levels of MDA, H2O2, and electrolyte leakage and increased water use efficiency”
Claim · model-written summary
The combination of Si + ML significantly enhanced wheat yield by 20.21% under drought.
- Taxon
- wheatTriticum aestivume7
- Treatment
- combination of Si + MLe7
- Outcome
- yielde7
- Direction
- significantly enhancede7
- Value
- 20.21%e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Conclusively, the combination of Si + ML significantly enhanced the 20.21% yield and various morpho-physiological attributes of drought-stressed wheat plants”
Claim · model-written summary
The authors recommend Si + ML as a promising treatment to enhance wheat productivity in drought-affected regions.
- Taxon
- wheatTriticum aestivume2
- Outcome
- wheat productivitye2
- Setting
- drought-affected regionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“can be recommended as a promising treatment to enhance wheat productivity in drought-affected regions”
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See all 7 papers →8 of 12 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.