Abstract
There is now a consensus that global warming causes climate change and is a worldwide threat, which presents a great challenge for the 21st century. Arid, semiarid, and tropical regions of the world including Pakistan, where climate change is enhancing salinization and is restricting plant growth and production by reducing nutrient uptake and increasing osmotic stresses. Keeping in view all these interlinked predicted climatic change, present study was aimed to determine the effect of osmopriming with Polyethylene glycol (PEG-4000) for osmotic potential (Ψs = −0.2MPa), hydropriming, thermopriming on cultivars of Capsicum annuum L. analyzing germination indices, physiological and biochemical attributes under induced salinity stress of 60 mM and 80 mM sodium chloride chosen from deleterious effect of these concentrations in preliminary screening experiment. Results indicated highest tolerance in the osmoprimed seeds (PEG-4000) to lower salt stress significantly at p < .001 based on chlorophyll “a” (chlo “a”), chlorophyll “a” and “b” ratio (chlo a/b ratio), total chlorophyll content (TCC) and carotenoid content (CC) resulting less deterioration of photosynthetic pigments whereas; maximum total proline content (TPC) (p < .001), superoxide dismutase (SOD), and peroxidase (POD) at p = .01) and ascorbate peroxidase (APOX) at p < .05 in hydroprimed seeds reflecting the ability of selected cultivars to resist oxidations. It is concluded that high salinity altered many metabolic processes due to high osmotic potential inside the cell which is considered an alarming situation for the forthcoming climate change in Pakistan and required climate-smart agriculture to lower the negative impact forthcoming salinization, before it might affect global crop production drastically.
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Claims 5
Claim · model-written summary
PEG osmopriming gave the highest tolerance to lower salt stress based on photosynthetic pigments.
- Taxon
- Capsicum annuum L.
Capsicum annuume1 - Treatment
- osmoprimed seeds (PEG-4000)e0
- Outcome
- highest tolerancee0
- Direction
- higheste0
- Qualifier
- lower salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest tolerance in the osmoprimed seeds (PEG-4000) to lower salt stress significantly at p < .001 based on chlorophyll “a” (chlo “a”), chlorophyll “a” and “b” ratio (chlo a/b ratio), total chlorophyll content (TCC) and carotenoid content (CC) resulting less deterioration of photosynthetic pigments”
e1“cultivars of Capsicum annuum L.”
Claim · model-written summary
PEG osmopriming lessened deterioration of photosynthetic pigments under lower salt stress.
- Taxon
- Capsicum annuum L.Capsicum annuume1
- Treatment
- osmoprimed seeds (PEG-4000)e2
- Outcome
- photosynthetic pigmentse0
- Direction
- less deterioratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll “a” (chlo “a”), chlorophyll “a” and “b” ratio (chlo a/b ratio), total chlorophyll content (TCC) and carotenoid content (CC) resulting less deterioration of photosynthetic pigments”
e1“cultivars of Capsicum annuum L.”
e2“highest tolerance in the osmoprimed seeds (PEG-4000)”
Claim · model-written summary
Hydropriming produced maximum total proline content.
- Taxon
- Capsicum annuum L.Capsicum annuume1
- Treatment
- hydroprimed seedse0
- Outcome
- total proline contente0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total proline content (TPC) (p < .001), superoxide dismutase (SOD), and peroxidase (POD) at p = .01) and ascorbate peroxidase (APOX) at p < .05 in hydroprimed seeds”
e1“cultivars of Capsicum annuum L.”
Claim · model-written summary
Hydroprimed seeds showed maximum superoxide dismutase and peroxidase activity.
- Taxon
- Capsicum annuum L.Capsicum annuume1
- Treatment
- hydroprimed seedse0
- Outcome
- superoxide dismutase (SOD), and peroxidase (POD)e0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total proline content (TPC) (p < .001), superoxide dismutase (SOD), and peroxidase (POD) at p = .01) and ascorbate peroxidase (APOX) at p < .05 in hydroprimed seeds”
e1“cultivars of Capsicum annuum L.”
Claim · model-written summary
Hydroprimed seeds showed maximum ascorbate peroxidase activity.
- Taxon
- Capsicum annuum L.Capsicum annuume1
- Treatment
- hydroprimed seedse0
- Outcome
- ascorbate peroxidase (APOX)e0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total proline content (TPC) (p < .001), superoxide dismutase (SOD), and peroxidase (POD) at p = .01) and ascorbate peroxidase (APOX) at p < .05 in hydroprimed seeds”
e1“cultivars of Capsicum annuum L.”
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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.