Abstract
Soil salinisation is an important abiotic stress faced in grape cultivating, leading to weakened plant vigour and reduced fruit quality. Melatonin as a novel hormone has shown positive exogenous application value. Therefore, this study used wine grape (Vitis vinifera ) 'Pinot Noir' as a test material to investigate the changes of foliar spraying with different concentrations of melatonin on the physiology and fruit quality of wine grapes in a field under simulated salt stress (200mmolL-1 NaCl). The results showed that foliar spraying of melatonin significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII, relative chlorophyll and ascorbic acid content of the leaves, as well as the single spike weight, 100-grain weight, transverse and longitudinal diameters, malic acid, α-amino nitrogen and ammonia content of fruits, and decreased the initial fluorescence value of leaves, ascorbate peroxidase activity, glutathione content, fruit transverse to longitudinal ratio and tartaric acid content of plants under salt stress. Results of the comprehensive evaluation of the affiliation function indicated that 100μmolL-1 melatonin treatment had the best effect on reducing salt stress in grapes. In summary, melatonin application could enhance the salt tolerance of grapes by improving the photosynthetic capacity of grape plants under salt stress and promoting fruit development and quality formation, and these results provide new insights into the involvement of melatonin in the improvement of salt tolerance in crop, as well as some theoretical basis for the development and industrialisation of stress-resistant cultivation techniques for wine grapes.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Foliar melatonin significantly increased intercellular CO2 concentration and maximum photochemical quantum yield of PSII in wine grape under salt stress.
- Taxon
- wine grapes
Vitis viniferat0 - Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- intercellular CO2 concentration, maximum photochemical quantum yield of PSIIe2
- Direction
- increasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin significantly increased relative chlorophyll and ascorbic acid content of the leaves of wine grape under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Organ / stage
- leavese2
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- relative chlorophyll and ascorbic acid content of the leavese2
- Direction
- increasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII, relative chlorophyll and ascorbic acid content of the leaves”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin significantly increased single spike weight and 100-grain weight of wine grape under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- single spike weight, 100-grain weighte2
- Direction
- increasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII, relative chlorophyll and ascorbic acid content of the leaves, as well as the single spike weight, 100-grain weight”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin significantly increased transverse and longitudinal diameters of wine grape fruits under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- transverse and longitudinal diameterse2
- Direction
- increasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII, relative chlorophyll and ascorbic acid content of the leaves, as well as the single spike weight, 100-grain weight, transverse and longitudinal diameters”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin significantly increased malic acid, alpha-amino nitrogen and ammonia content of wine grape fruits under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Organ / stage
- fruitse2
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- malic acid, α-amino nitrogen and ammonia contente2
- Direction
- increasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“significantly increased the intercellular CO2 concentration, maximum photochemical quantum yield of PSII, relative chlorophyll and ascorbic acid content of the leaves, as well as the single spike weight, 100-grain weight, transverse and longitudinal diameters, malic acid, α-amino nitrogen and ammonia content of fruits”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin decreased initial fluorescence value of leaves, ascorbate peroxidase activity and glutathione content of wine grape under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Organ / stage
- leavese2
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- initial fluorescence value of leaves, ascorbate peroxidase activity, glutathione contente2
- Direction
- decreasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“decreased the initial fluorescence value of leaves, ascorbate peroxidase activity, glutathione content”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
Foliar melatonin decreased fruit transverse to longitudinal ratio and tartaric acid content of wine grape under salt stress.
- Taxon
- wine grapesVitis viniferat0
- Treatment
- exogenous melatonin foliar applicationt0
- Outcome
- fruit transverse to longitudinal ratio and tartaric acid contente2
- Direction
- decreasede2
- Setting
- in a fielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress”
e2“decreased the initial fluorescence value of leaves, ascorbate peroxidase activity, glutathione content, fruit transverse to longitudinal ratio and tartaric acid content of plants under salt stress”
e3“in a field under simulated salt stress (200mmolL-1 NaCl)”
Claim · model-written summary
100 μmol/L melatonin had the best effect on reducing salt stress in grapes among the tested treatments.
Not reportedComparator
Verbatim
e2“100μmolL-1 melatonin treatment had the best effect on reducing salt stress in grapes”
The same questions in other papers
melatonin · physiology: antioxidant enzymes · Vitis vinifera (wine grape)Results differ
1 paper in the same direction as this paper
- positive
melatonin · molecular: metabolites · Vitis vinifera (wine grape)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · physiology: pigments · Vitis vinifera (wine grape)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 papers →application · molecular: metabolites · Vitis vinifera (wine grape)Positive and negative results
16 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
14 papers more in this group
See all 18 papers →application · yield · Vitis vinifera (wine grape)Positive and negative results
25 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- no effect
26 papers more in this group
See all 30 papers →application · physiology: photosynthesis · Vitis vinifera (wine grape)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →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.