Abstract
The aim of the present study was to examine physiological and morphological characteristics of Spartina pectinata ‘Auremarginata’ in response to various soil salinity conditions. Investigating the plant’s response and time-point of potential adjustment to salinity stress will help determine the suitability of the species for growing in the roadsides. The effect of various levels of salinity on S. pectinata ‘Aureomarginata’ was examined. The NaCl was applied at five different levels (g·dm–3): 0 (control), 15, 30, 45, 60. The plant response was analysed after 14, 28, 42 and 56 days of the experiment. The highest concentration showed the strongest negative effects, which were indicated by a decrease in net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E), specific leaf area (SLA), relative water content (RWC) and the number of shoots, number of young shoots and length of mature shoots. Plants have even some types of adjustment to stress conditions, at medium levels. This was especially valid for PN and gs after 28 days of the experiment. Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD).
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Claims 10
Claim · model-written summary
At the highest NaCl concentration, net photosynthesis rate, stomatal conductance and transpiration rate decreased in Spartina pectinata
- Taxon
- Spartina pectinata
Sporobolus michauxianuse0 - Treatment
- NaCle1
- Outcome
- net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E)e2
- Direction
- decreasee2
- Qualifier
- highest concentratione2
- Comparator
- 0 (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e1“The NaCl was applied at five different levels (g·dm–3): 0 (control), 15, 30, 45, 60”
e2“The highest concentration showed the strongest negative effects, which were indicated by a decrease in net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E), specific leaf area (SLA), relative water content (RWC) and the number of shoots, number of young shoots and length of mature shoots”
Claim · model-written summary
At the highest NaCl concentration, specific leaf area and relative water content decreased in Spartina pectinata
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- NaCle1
- Outcome
- specific leaf area (SLA), relative water content (RWC)e2
- Direction
- decreasee2
- Qualifier
- highest concentratione2
- Comparator
- 0 (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e1“The NaCl was applied at five different levels (g·dm–3): 0 (control), 15, 30, 45, 60”
e2“The highest concentration showed the strongest negative effects, which were indicated by a decrease in net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E), specific leaf area (SLA), relative water content (RWC) and the number of shoots, number of young shoots and length of mature shoots”
Claim · model-written summary
At the highest NaCl concentration, shoot number, young shoot number and mature shoot length decreased in Spartina pectinata
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- NaCle1
- Outcome
- the number of shoots, number of young shoots and length of mature shootse2
- Direction
- decreasee2
- Qualifier
- highest concentratione2
- Comparator
- 0 (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e1“The NaCl was applied at five different levels (g·dm–3): 0 (control), 15, 30, 45, 60”
e2“The highest concentration showed the strongest negative effects, which were indicated by a decrease in net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E), specific leaf area (SLA), relative water content (RWC) and the number of shoots, number of young shoots and length of mature shoots”
Claim · model-written summary
Spartina pectinata showed some adjustment to salinity stress at medium levels
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Outcome
- adjustment to stress conditionse3
- Qualifier
- at medium levelse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e3“Plants have even some types of adjustment to stress conditions, at medium levels. This was especially valid for PN and gs after 28 days of the experiment.”
Claim · model-written summary
Net photosynthesis rate and stomatal conductance adjusted under medium salinity after 28 days in Spartina pectinata
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Outcome
- PN and gse3
- Qualifier
- after 28 days of the experimente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e3“Plants have even some types of adjustment to stress conditions, at medium levels. This was especially valid for PN and gs after 28 days of the experiment.”
Claim · model-written summary
Salinity level was negatively related to net photosynthesis rate, stomatal conductance and transpiration rate
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- salinity levele4
- Outcome
- PN, gs, Ee4
- Direction
- negative relationshipe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e4“Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD)”
Claim · model-written summary
Salinity level was negatively related to relative water content and specific leaf area
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- salinity levele4
- Outcome
- RWC, SLAe4
- Direction
- negative relationshipe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e4“Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD)”
Claim · model-written summary
Salinity level was negatively related to the number of young shoots and the number of shoots
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- salinity levele4
- Outcome
- number of young shoots and number of shootse4
- Direction
- negative relationshipe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e4“Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD)”
Claim · model-written summary
Salinity level was positively related to CMS and Ci
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- salinity levele4
- Outcome
- CMS, Cie4
- Direction
- positive relationshipe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e4“Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD)”
Claim · model-written summary
Salinity level was positively related to the number of young leaves and leaf chlorophyll content
- Taxon
- Spartina pectinataSporobolus michauxianuse0
- Treatment
- salinity levele4
- Outcome
- number of young leaves and leaf chlorophyll content (SPAD)e4
- Direction
- positive relationshipe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“examine physiological and morphological characteristics of Spartina pectinata”
e4“Principal component analysis revealed negative relationship of salinity level with PN, gs, E, RWC, SLA, number of young shoots and number of shoots, whereas a positive relationship was recorded with CMS, Ci, number of young leaves and leaf chlorophyll content (SPAD)”