Abstract
In the southwestern and western Cotton Belt of the U.S. soil salinity can reduce cotton productivity and quality. This study was conducted to determine the physiological responses of six genotypes including five Upland cotton ( Gossypium hirsutum L.) cultivars and one Pima cotton line ( G. barbadense L.) to NaCl under greenhouse conditions. Seeds were germinated and grown for 14 days prior to salt treatment (daily 100 ml of 200 mM NaCl) for 21 days. Compared with the control (daily 100 ml tap water), the NaCl treatment significantly reduced plant height, leaf area, fresh weight, and dry weight. The NaCl stress also significantly increased leaf chlorophyll content, but did not affect leaf fluorescence. Of the six genotypes, Pima 57-4 and SG 747 had the most growth reduction, and were most sensitive to NaCl; DP 33B, JinR 422 and Acala Phy 72 had the least growth reduction and were most NaCl tolerant. Although all the six genotypes under the salt treatment had significantly higher Na and Cl accumulation in leaves, SG 747 and Pima 57-4 accumulated more Na and Cl than DP 33B. Increases in leaf N, Zn, and Mn concentrations were also observed in the NaCl-treated plants. While leaf P, Ca, and S concentrations remained unchanged overall in the genotypes tested, leaf K, Mg, Fe, and Cu concentrations significantly decreased during salt stress. Reduction in plant height is a simple, easy, sensitive, non-destructive measurement to evaluate salt tolerance in cotton.
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Claims 9
Claim · model-written summary
NaCl reduced cotton height, leaf area, fresh weight and dry weight.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- NaCl treatmente0
- Outcome
- plant height, leaf area, fresh weight, and dry weighte0
- Direction
- reducede0
- Comparator
- control (daily 100 ml tap water)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control (daily 100 ml tap water), the NaCl treatment significantly reduced plant height, leaf area, fresh weight, and dry weight”
t0“Cottons”
t1“cotton”
Claim · model-written summary
NaCl increased leaf chlorophyll content.
- Taxon
- CottonsGossypium hirsutumt0
- Treatment
- NaCl stresse0
- Outcome
- leaf chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl stress also significantly increased leaf chlorophyll content”
t0“Cottons”
Claim · model-written summary
NaCl did not affect leaf fluorescence.
- Taxon
- CottonsGossypium hirsutumt0
- Treatment
- NaCl stresse1
- Outcome
- leaf fluorescencee0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but did not affect leaf fluorescence”
e1“The NaCl stress”
t0“Cottons”
Claim · model-written summary
Pima 57-4 and SG 747 had greatest growth reduction and salt sensitivity.
- Taxon
- CottonsGossypium hirsutumt0
- Material
- Pima 57-4 and SG 747e0
- Outcome
- growth reductione0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pima 57-4 and SG 747 had the most growth reduction, and were most sensitive to NaCl”
t0“Cottons”
Claim · model-written summary
DP 33B, JinR 422 and Acala Phy 72 had least growth reduction and greatest salt tolerance.
- Taxon
- CottonsGossypium hirsutumt0
- Material
- DP 33B, JinR 422 and Acala Phy 72e0
- Outcome
- growth reductione0
- Direction
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DP 33B, JinR 422 and Acala Phy 72 had the least growth reduction and were most NaCl tolerant”
t0“Cottons”
Claim · model-written summary
NaCl increased leaf Na and Cl accumulation in all six genotypes.
- Taxon
- CottonsGossypium hirsutumt0
- Treatment
- salt treatmente0
- Outcome
- Na and Cl accumulation in leavese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the six genotypes under the salt treatment had significantly higher Na and Cl accumulation in leaves”
t0“Cottons”
Claim · model-written summary
NaCl increased leaf N, Zn and Mn concentrations.
- Taxon
- CottonsGossypium hirsutumt0
- Treatment
- NaCl-treatede0
- Outcome
- leaf N, Zn, and Mn concentrationse0
- Direction
- Increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in leaf N, Zn, and Mn concentrations were also observed in the NaCl-treated plants”
t0“Cottons”
Claim · model-written summary
Leaf P, Ca and S remained unchanged.
- Taxon
- CottonsGossypium hirsutumt0
- Outcome
- leaf P, Ca, and S concentrationse0
- Direction
- remained unchangede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf P, Ca, and S concentrations remained unchanged overall in the genotypes tested”
t0“Cottons”
Claim · model-written summary
Salt stress decreased leaf K, Mg, Fe and Cu concentrations.
- Taxon
- CottonsGossypium hirsutumt0
- Treatment
- salt stresse0
- Outcome
- leaf K, Mg, Fe, and Cu concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf K, Mg, Fe, and Cu concentrations significantly decreased during salt stress”
t0“Cottons”
The same questions in other papers
sodium chloride · growth · Gossypium hirsutum (cotton)Results differ
26 papers in the same direction as this paper · 15 in the opposite direction
- positive
- negative
- negative
38 papers more in this group
See all 42 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.