Abstract
Salinity is one of most significant environmental stresses. Marigold is moderately tolerant to salinity stress. Therefore, in this study, the fresh weights of roots and shoots, rootFW/shootFW ratio, moisture content of shoots, micronutrient and macronutrient concentrations and ratios of K(+)/Na(+) and Ca(2+)/Na(+) in the roots and shoots of marigold were determined under salinity stress. Five salinity treatments (0, 50, 100, 150, and 200 mM NaCl) were maintained. In the current study, salinity affected the biomass of marigold. An increase of more than 100 mM in salt concentrations significantly reduced the shoot fresh weight. Increasing salinity stress increased the ratios of rootFW/shootFW, which were more significant under high salt levels (150 and 200 mM NaCl). Wet basis moisture contents of the shoots were reduced when salinity stress increased above 100 mM. In this study, salinity stress affected micronutrient and macronutrient uptake. Increases in the salt concentration and decreases in the concentration of Cu(2+) and Zn(2+) in the roots and Mn(2+) and Fe(2+) in the shoots were significant. Based on an increase in salinity stress, while the Ca(2+), Mg(2+), and Na(+) concentrations increased, the K(+) concentration decreased in the roots and shoots. Moreover, the K(+)/Na(+) and Ca(2+)/Na(+) ratios of the roots and shoots were significantly lower than those of the control in all of the salinity treatments. As a result, under increasing salinity stress, the Ca(2+), Mg(2+), K(+), and Na(+) uptakes in marigold were significant, revealing the effects of stress.
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Claims 10
Claim · model-written summary
Salinity affected marigold biomass.
Not reportedComparatorDirection
Verbatim
e0“salinity affected the biomass of marigold”
Claim · model-written summary
Salt above 100 mM significantly reduced shoot fresh weight.
- Taxon
- marigoldt0
- Treatment
- more than 100 mM in salt concentrationse0
- Outcome
- shoot fresh weighte0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“An increase of more than 100 mM in salt concentrations significantly reduced the shoot fresh weight”
t0“marigold”
Claim · model-written summary
Increasing salinity increased the root-to-shoot fresh-weight ratio, especially at high salt.
- Taxon
- marigoldt0
- Treatment
- Increasing salinity stresse0
- Outcome
- ratios of rootFW/shootFWe0
- Direction
- increasede0
- Qualifier
- high salt levels (150 and 200 mM NaCl)e0
Not reportedComparator
Verbatim
e0“Increasing salinity stress increased the ratios of rootFW/shootFW, which were more significant under high salt levels (150 and 200 mM NaCl)”
t0“marigold”
Claim · model-written summary
Shoot moisture declined above 100 mM salinity.
- Taxon
- marigoldt0
- Treatment
- salinity stress increased above 100 mMe0
- Outcome
- moisture contents of the shootse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Wet basis moisture contents of the shoots were reduced when salinity stress increased above 100 mM”
t0“marigold”
Claim · model-written summary
Salt concentration increases significantly decreased root Cu and Zn concentrations.
- Taxon
- marigoldt0
- Treatment
- Increases in the salt concentratione0
- Outcome
- concentration of Cu(2+) and Zn(2+) in the rootse0
- Direction
- decreasese0
Not reportedComparator
Verbatim
e0“Increases in the salt concentration and decreases in the concentration of Cu(2+) and Zn(2+) in the roots and Mn(2+) and Fe(2+) in the shoots were significant”
t0“marigold”
Claim · model-written summary
Salt concentration increases significantly decreased shoot Mn and Fe concentrations.
- Taxon
- marigoldt0
- Treatment
- Increases in the salt concentratione0
- Outcome
- Mn(2+) and Fe(2+) in the shootse0
- Direction
- decreasese0
Not reportedComparator
Verbatim
e0“Increases in the salt concentration and decreases in the concentration of Cu(2+) and Zn(2+) in the roots and Mn(2+) and Fe(2+) in the shoots were significant”
t0“marigold”
Claim · model-written summary
Increasing salinity increased Ca, Mg and Na concentrations in roots and shoots.
- Taxon
- marigoldt0
- Organ / stage
- roots and shootse0
- Treatment
- salinity stresse1
- Outcome
- Ca(2+), Mg(2+), and Na(+) concentrationse0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“while the Ca(2+), Mg(2+), and Na(+) concentrations increased, the K(+) concentration decreased in the roots and shoots”
e1“Based on an increase in salinity stress”
t0“marigold”
Claim · model-written summary
Increasing salinity decreased K concentration in roots and shoots.
- Taxon
- marigoldt0
- Organ / stage
- roots and shootse0
- Treatment
- salinity stresse1
- Outcome
- K(+) concentratione0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“while the Ca(2+), Mg(2+), and Na(+) concentrations increased, the K(+) concentration decreased in the roots and shoots”
e1“Based on an increase in salinity stress”
t0“marigold”
Claim · model-written summary
Salinity treatments significantly lowered root and shoot K-to-Na ratios relative to controls.
Verbatim
e0“the K(+)/Na(+) and Ca(2+)/Na(+) ratios of the roots and shoots were significantly lower than those of the control in all of the salinity treatments”
t0“marigold”
Claim · model-written summary
Salinity treatments significantly lowered root and shoot Ca-to-Na ratios relative to controls.
Verbatim
e0“the K(+)/Na(+) and Ca(2+)/Na(+) ratios of the roots and shoots were significantly lower than those of the control in all of the salinity treatments”
t0“marigold”
The same questions in other papers
salinity · growth · Tagetes (marigolds)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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See all 5 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.