Abstract
The aim of the present study was to evaluate the effects of salinity stress on germination and growth of pea (Pisum sativum L) plants. A laboratory experiment was conducted to evaluate the effect of salinity stress on germination and growth of pea Pisum sativum L plant. Seeds of pea were sown in Petri dishes and pots and treated with four different levels of salinity (0, 50, 100, and 150mM NaCl) with completely randomized designs in four replications. Results revealed that seeds of pea were able to germinate at low salinity levels (NaCl 50mM NaCl) without a significant decrease in germination and growth traits, at the same time as a severe decrease in those traits were recorded at higher levels of salinity (100 and 150mM NaCl). The results indicated that seed germination and seedling establishment were inhibited due to the decrease of water potential, which results in the decline in water uptake by seeds, and seed germination was prevented by a high level of salinity stress (150mM NaCl). The results pointed out that germination percentage (GP), mean daily germination (MDG), germination speed (GS), and vigor index (SVI) varied under moderate and high salinity levels. All the studied parameters were reduced with increasing the NaCl level. The max and min GP, MDG, GS, and SVI were observed under control conditions (0mM NaCl) and highest salinity level (150mM NaCl) respectively. The same trend was seen in plant growth traits including: plant height, branch number, leaf number, leaf area, and shoot fresh and dry weight. The results provided important reference information for research on the impact of salinity on germination and growth of pea.
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Claims 9
Claim · model-written summary
At 50mM NaCl, pea germination and growth traits showed no significant decrease.
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- NaCl 50mM NaCle0
- Outcome
- germination and growth traitse0
- Direction
- without a significant decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seeds of pea were able to germinate at low salinity levels (NaCl 50mM NaCl) without a significant decrease in germination and growth traits”
Claim · model-written summary
At 100 and 150mM NaCl, pea germination and growth traits decreased severely.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- 100 and 150mM NaCle0
- Outcome
- those traitse0
- Direction
- severe decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a severe decrease in those traits were recorded at higher levels of salinity (100 and 150mM NaCl)”
t0“Pea”
Claim · model-written summary
The authors attributed inhibited pea seed germination and seedling establishment to reduced water potential and water uptake.
- Taxon
- PeaLathyrus oleraceust0
- Organ / stage
- seedse0
- Outcome
- seed germination and seedling establishmente0
- Qualifier
- decrease of water potentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed germination and seedling establishment were inhibited due to the decrease of water potential, which results in the decline in water uptake by seeds”
t0“Pea”
Claim · model-written summary
High salinity of 150mM NaCl prevented pea seed germination.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- 150mM NaCle0
- Outcome
- seed germinatione0
- Direction
- preventede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed germination was prevented by a high level of salinity stress (150mM NaCl)”
t0“Pea”
Claim · model-written summary
Pea germination percentage, mean daily germination and germination speed declined with increasing NaCl.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- NaCl levele0
- Outcome
- germination percentage (GP), mean daily germination (MDG), germination speed (GS)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination percentage (GP), mean daily germination (MDG), germination speed (GS), and vigor index (SVI) varied under moderate and high salinity levels. All the studied parameters were reduced with increasing the NaCl level.”
t0“Pea”
Claim · model-written summary
Pea vigor index declined with increasing NaCl.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- NaCl levele0
- Outcome
- vigor index (SVI)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination percentage (GP), mean daily germination (MDG), germination speed (GS), and vigor index (SVI) varied under moderate and high salinity levels. All the studied parameters were reduced with increasing the NaCl level.”
t0“Pea”
Claim · model-written summary
Pea germination metrics were highest at 0mM NaCl and lowest at 150mM NaCl.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- 150mM NaCle0
- Outcome
- GP, MDG, GS, and SVIe0
- Direction
- mine0
- Comparator
- control conditions (0mM NaCl)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The max and min GP, MDG, GS, and SVI were observed under control conditions (0mM NaCl) and highest salinity level (150mM NaCl) respectively.”
t0“Pea”
Claim · model-written summary
Pea height, branch number and leaf number followed the same decline with salinity.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Salinity Stresst0
- Outcome
- plant height, branch number, leaf numbere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same trend was seen in plant growth traits including: plant height, branch number, leaf number, leaf area, and shoot fresh and dry weight.”
t0“Salinity Stress on Germination and Growth of Pea”
Claim · model-written summary
Pea leaf area and shoot fresh and dry weight followed the same decline with salinity.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Salinity Stresst0
- Outcome
- leaf area, and shoot fresh and dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same trend was seen in plant growth traits including: plant height, branch number, leaf number, leaf area, and shoot fresh and dry weight.”
t0“Salinity Stress on Germination and Growth of Pea”
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