Abstract
A pot experiment based on complete block design was carried out to investigate the effect of salinity on growth traits and essential oil content of chamomile (Matricaria chamomilla L.). Four levels of salinity including control (0 mM), 50, 150 and 250 mM Nacl and CaCl2 in 5:1 molar ratio were used. Result indicated that increased salinity caused reduction in plant height, number of branches per plant, number of flowers per plant. Increased salinity also significantly decreased plant dry weight, flower dry weight and essential oil content. The highest values of growth traits such as number of flower per plant, flower dry weight and essential oil content were observed under control condition (non-salinity stress). The effect of salinity on flower dry weight is greater than other traits. Flower dry weight of plants at low (50mM) level of salinity was decreased 12.2% compared to control (non-stressed plant) while essential oil content increased 18.2% at the same salt concentration. At the highest level of salt stress (250mM) flower dry weight and essential oil content was decreased by 79.8 and 45.5% compared to non stressed plants, respectively. Number of flower per plant was decreased by 16.1 and 69.2% at lowest (50 mM) and highest (250 mM) salinity concentration respectively. Salinity affects flowering time of plants. Flowering time of non-stressed plants started 50 days after plant transplanting while flowering time of plants treated by 250 mM salinity started 64 days after seedlings transplanting to pots.
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Claims 12
Claim · model-written summary
Increasing salinity reduced plant height and branch and flower counts.
- Taxon
- Matricaria chamomilla L.
Matricaria chamomillat0 - Treatment
- increased salinitye0
- Outcome
- plant height, number of branches per plant, number of flowers per plante0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased salinity caused reduction in plant height, number of branches per plant, number of flowers per plant”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Increasing salinity significantly reduced plant dry weight.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- Increased salinitye0
- Outcome
- plant dry weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased salinity also significantly decreased plant dry weight, flower dry weight and essential oil content”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Increasing salinity significantly reduced flower dry weight.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- Increased salinitye0
- Outcome
- flower dry weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased salinity also significantly decreased plant dry weight, flower dry weight and essential oil content”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Increasing salinity significantly reduced essential oil content.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- Increased salinitye0
- Outcome
- essential oil contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased salinity also significantly decreased plant dry weight, flower dry weight and essential oil content”
t0“Matricaria chamomilla L.”
Claim · model-written summary
At 50 mM salinity, flower dry weight declined 12.2% relative to controls.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- low (50mM) level of salinitye0
- Outcome
- Flower dry weighte0
- Direction
- decreasede0
- Value
- 12.2%e0
- Comparator
- control (non-stressed plant)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flower dry weight of plants at low (50mM) level of salinity was decreased 12.2% compared to control (non-stressed plant)”
t0“Matricaria chamomilla L.”
Claim · model-written summary
At 50 mM salinity, essential oil content rose 18.2%.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- same salt concentratione0
- Outcome
- essential oil contente0
- Direction
- increasede0
- Value
- 18.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oil content increased 18.2% at the same salt concentration”
t0“Matricaria chamomilla L.”
Claim · model-written summary
At 250 mM salinity, flower dry weight declined 79.8% against controls.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- highest level of salt stress (250mM)e0
- Outcome
- flower dry weighte0
- Direction
- decreasede0
- Value
- 79.8e0
- Comparator
- non stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest level of salt stress (250mM) flower dry weight and essential oil content was decreased by 79.8 and 45.5% compared to non stressed plants, respectively”
t0“Matricaria chamomilla L.”
Claim · model-written summary
At 250 mM salinity, essential oil content declined 45.5% against controls.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- highest level of salt stress (250mM)e0
- Outcome
- essential oil contente0
- Direction
- decreasede0
- Value
- 45.5%e0
- Comparator
- non stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest level of salt stress (250mM) flower dry weight and essential oil content was decreased by 79.8 and 45.5% compared to non stressed plants, respectively”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Flower number fell 16.1% at 50 mM salinity.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- lowest (50 mM)e0
- Outcome
- Number of flower per plante0
- Direction
- decreasede0
- Value
- 16.1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of flower per plant was decreased by 16.1 and 69.2% at lowest (50 mM) and highest (250 mM) salinity concentration respectively”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Flower number fell 69.2% at 250 mM salinity.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- highest (250 mM) salinity concentratione0
- Outcome
- Number of flower per plante0
- Direction
- decreasede0
- Value
- 69.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of flower per plant was decreased by 16.1 and 69.2% at lowest (50 mM) and highest (250 mM) salinity concentration respectively”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Non stressed plants began flowering 50 days after transplanting.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Outcome
- Flowering timee0
- Value
- 50 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering time of non-stressed plants started 50 days after plant transplanting”
t0“Matricaria chamomilla L.”
Claim · model-written summary
Plants under 250 mM salinity began flowering 64 days after transplanting.
- Taxon
- Matricaria chamomilla L.Matricaria chamomillat0
- Treatment
- 250 mM salinitye0
- Outcome
- flowering timee0
- Direction
- higherinferrede0
- Value
- 64 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flowering time of plants treated by 250 mM salinity started 64 days after seedlings transplanting to pots”
t0“Matricaria chamomilla L.”
The same questions in other papers
salinity · growth · Matricaria chamomillaPositive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 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.