Abstract
To lay a foundation for further studying and clarifying the physiological mechanism of watermelon plant under salinity,the growth and physiological changes of watermelon seedlings in response to salinity were explored.The effects of different concentration NaCl stress on plant growth,photosynthetic pigments content,relative membrane permeability and proline content in leaves of watermelon(Citrullus lanatus M.)seedlings grown hydroponically were studied.The results showed that lower concentration(25 and 50 mmol·L-1)NaCl treatments improved watermelon seedlings growth while higher concentration(75,100 and 150 mmol·L-1)NaCl stresses obviously inhibited its growth;with increasing NaCl concentration,relative membrane permeability increased significantly,however,photosynthetic pigments and proline content in leaves showed clear regularity that increased at lower concentration and decreased at higher concentration,and reached the highest value at 75 mmol·L-1 NaCl for photosynthetic pigments content,at 50 mmol·L-1 NaCl for proline content.The research revealed that lower concentration salinity contributed to growth rather than caused stress-induced damage;on the contrary,higher concentration salinity significantly inhibited plant growth,destroyed the structure of cell membrane and influenced the normal metabolism of photosynthetic pigments and proline in watermelon seedlings.
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 7
Claim · model-written summary
25 and 50 mmol·L-1 NaCl improved seedling growth.
- Taxon
- watermelon
Citrullus lanatuse0 - Treatment
- lower concentration(25 and 50 mmol·L-1)NaCl treatmentse0
- Outcome
- watermelon seedlings growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower concentration(25 and 50 mmol·L-1)NaCl treatments improved watermelon seedlings growth”
Claim · model-written summary
75, 100 and 150 mmol·L-1 NaCl inhibited seedling growth.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- higher concentration(75,100 and 150 mmol·L-1)NaCl stressese0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher concentration(75,100 and 150 mmol·L-1)NaCl stresses obviously inhibited its growth”
t0“watermelon”
Claim · model-written summary
Relative membrane permeability increased with NaCl concentration.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- NaCl concentratione0
- Outcome
- relative membrane permeabilitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increasing NaCl concentration,relative membrane permeability increased significantly”
t0“watermelon”
Claim · model-written summary
Leaf photosynthetic pigment content rose at low NaCl and fell at high NaCl.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leavese0
- Outcome
- photosynthetic pigmentse0
- Comparator
- lower concentration and decreased at higher concentratione0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic pigments and proline content in leaves showed clear regularity that increased at lower concentration and decreased at higher concentration”
t0“watermelon”
Claim · model-written summary
Leaf proline content rose at low NaCl and fell at high NaCl.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leavese0
- Outcome
- proline contente0
- Comparator
- lower concentration and decreased at higher concentratione0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic pigments and proline content in leaves showed clear regularity that increased at lower concentration and decreased at higher concentration”
t0“watermelon”
Claim · model-written summary
Photosynthetic pigment content peaked at 75 mmol·L-1 NaCl.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- 75 mmol·L-1 NaCle0
- Outcome
- photosynthetic pigments contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reached the highest value at 75 mmol·L-1 NaCl for photosynthetic pigments content”
t0“watermelon”
Claim · model-written summary
Proline content peaked at 50 mmol·L-1 NaCl.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- 50 mmol·L-1 NaCle0
- Outcome
- proline contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 50 mmol·L-1 NaCl for proline content”
t0“watermelon”
The same questions in other papers
sodium chloride · growth · Citrullus lanatus (watermelon)Results differ
1 paper in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 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.