Abstract
This study evaluated the tolerance of mango cultivars 'Haden', 'Palmer', 'Tommy Atkins' and 'Uba' grafted on rootstock 'Imbú' to salt stress using chlorophyll fluorescence. Plants were grown in modified Hoagland solution containing 0, 15, 30, and 45 mmol L-1 NaCl. At 97 days the parameters of the chlorophyll fluorescence (F0, Fm, Fv, F0/Fm, Fv/Fm, Fv'/Fm', ΦPSII = [(Fm'-Fs)/(Fm')], D = (1- Fv'/Fm') and ETR = (ΦPSII×PPF×0,84×0,5) were determined. At 100 days, the leaf emission and leaf area, toxicity and leaf abscission indexes were determined. In all cultivars evaluated, in different degree, there were decreases in photochemical efficiency of photosystem II, enhanced concentrations from 15 mmol L-1 NaCl. The decreases in the potential quantum yield of photosystem II (Fv/Fm) were 27.9, 18.7, 20.5, and 27.4%, for cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba', respectively, when grown in 45 mmol L-1 NaCl. It was found decreases in leaf emission and mean leaf area in all cultivars from 15 mmol L-1 NaCl. There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl. Leaf toxicity and leaf abscission were not observed in 15 mmol L-1 NaCl. The decrease in Fv/Fm ratio were accompanied by decreasing in leaf emission and increased leaf toxicity index, showing, therefore, the potential of chlorophyll fluorescence in the early detection of salt stress in mango tree.
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Claims 17
Claim · model-written summary
Salt stress from 15 mmol L-1 NaCl decreased photosystem II photochemical efficiency across mango cultivars.
- Taxon
- mango
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Mangifera indicat0 - Treatment
- 15 mmol L-1 NaCle0
- Outcome
- photochemical efficiency of photosystem IIe0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“In all cultivars evaluated, in different degree, there were decreases in photochemical efficiency of photosystem II, enhanced concentrations from 15 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Haden' had a 27.9 decrease in potential photosystem II quantum yield at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Haden'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- potential quantum yield of photosystem II (Fv/Fm)e0
- Direction
- decreasese0
- Value
- 27.9e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decreases in the potential quantum yield of photosystem II (Fv/Fm) were 27.9, 18.7, 20.5, and 27.4%, for cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba', respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Palmer' had a 18.7 decrease in potential photosystem II quantum yield at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Palmer'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- potential quantum yield of photosystem II (Fv/Fm)e0
- Direction
- decreasese0
- Value
- 18.7e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decreases in the potential quantum yield of photosystem II (Fv/Fm) were 27.9, 18.7, 20.5, and 27.4%, for cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba', respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Tommy Atkins' had a 20.5 decrease in potential photosystem II quantum yield at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Tommy Atkins'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- potential quantum yield of photosystem II (Fv/Fm)e0
- Direction
- decreasese0
- Value
- 20.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decreases in the potential quantum yield of photosystem II (Fv/Fm) were 27.9, 18.7, 20.5, and 27.4%, for cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba', respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Uba' had a 27.4% decrease in potential photosystem II quantum yield at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Uba'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- potential quantum yield of photosystem II (Fv/Fm)e0
- Direction
- decreasese0
- Value
- 27.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decreases in the potential quantum yield of photosystem II (Fv/Fm) were 27.9, 18.7, 20.5, and 27.4%, for cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba', respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
At 15 mmol L-1 NaCl, mango cultivars had decreased leaf emission and mean leaf area.
- Taxon
- mangoMangifera indicat0
- Treatment
- 15 mmol L-1 NaCle0
- Outcome
- leaf emission and mean leaf areae0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was found decreases in leaf emission and mean leaf area in all cultivars from 15 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Haden' showed increased leaf toxicity by 33.0 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Haden'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf toxicitye0
- Direction
- increasese0
- Value
- 33.0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Haden' showed increased leaf abscission by 71.8 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Haden'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf abscissione0
- Direction
- increasese0
- Value
- 71.8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Palmer' showed increased leaf toxicity by 67.5 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Palmer'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf toxicitye0
- Direction
- increasese0
- Value
- 67.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Palmer' showed increased leaf abscission by 29.2 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Palmer'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf abscissione0
- Direction
- increasese0
- Value
- 29.2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Tommy Atkins' showed increased leaf toxicity by 41.6 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Tommy Atkins'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf toxicitye0
- Direction
- increasese0
- Value
- 41.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Tommy Atkins' showed increased leaf abscission by 32.5 at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Tommy Atkins'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf abscissione0
- Direction
- increasese0
- Value
- 32.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Uba' showed increased leaf toxicity by 80.8% at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Uba'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf toxicitye0
- Direction
- increasese0
- Value
- 80.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango cultivar 'Uba' showed increased leaf abscission by 67.9% at 45 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Material
- 'Uba'e0
- Treatment
- 45 mmol L-1 NaCle0
- Outcome
- leaf abscissione0
- Direction
- increasese0
- Value
- 67.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were increases in leaf toxicity of 33.0, 67.5, 41.6 and 80.8% and in leaf abscission of 71.8, 29.2, 32.5, and 67.9% for the cultivars 'Haden', 'Palmer', 'Tommy Atkins', and 'Uba' respectively, when grown in 45 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
Mango leaf toxicity and abscission were absent at 15 mmol L-1 NaCl.
- Taxon
- mangoMangifera indicat0
- Treatment
- 15 mmol L-1 NaCle0
- Outcome
- Leaf toxicity and leaf abscission were not observede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf toxicity and leaf abscission were not observed in 15 mmol L-1 NaCl.”
t0“mango”
Claim · model-written summary
The decline in mango Fv/Fm ratio accompanied reduced leaf emission and increased leaf toxicity.
- Taxon
- mango treeMangifera indicae0
- Organ / stage
- leafe0
- Outcome
- Fv/Fm ratioe0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in Fv/Fm ratio were accompanied by decreasing in leaf emission and increased leaf toxicity index, showing, therefore, the potential of chlorophyll fluorescence in the early detection of salt stress in mango tree.”
Claim · model-written summary
Chlorophyll fluorescence showed potential for early detection of mango salt stress.
- Taxon
- mango treeMangifera indicae0
- Outcome
- early detection of salt stresse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential of chlorophyll fluorescence in the early detection of salt stress in mango tree”
The same questions in other papers
sodium chloride · growth · Mangifera indica (mango)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.