Abstract
An experiment was conducted to see the impact of osmotic stress as it is one of the main cause in various soil and water disorders in agricultural field crops, speciallythe seed germination and seedling growth. The osmotic stress was generated using PEG-6000 and the seed germination, seedling growth were evaluated including the status of pigments i.e. chlorophyll (a, b and total), total carotenoids, pheophytin (a, b and total) and different enzymes like amylase, peroxidase, catalase and superoxide dismutase. The various osmotic potentials generated (-2, -5 and -10 bars) showed significant decrease in germination percentage as at the osmotic potential of -10 bars it was observed 70 in comparison to 90% of control. All the seedling growth parameter also showed inhibition with increase in osmotic potential. Increase in osmotic stress decreased Chlorophyll 'a', while Chlorophyll 'b' was increased in -5 bars while total chlorophyll showed decrease in -5 bars osmotic potential. Total carotenoids and pheophytin (a, b and total) were highly increased in -5 bars and decreased in -10 bars osmotic concentration. Enzymatic activity was found to be decreased in amylase while peroixidase, catalase and SOD were increased at different osmotic gradients in comparison to control. The data observed in the experiment can be helpful to assess the impact of any kind of osmotic stress on plant growth and development in crops.
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Claims 9
Claim · model-written summary
Osmotic stress significantly lowered black gram germination from 90% control to 70 at -10 bars.
- Taxon
- black gram
Vigna mungot0 - Treatment
- -10 barse0
- Outcome
- germination percentagee0
- Direction
- decreasee0
- Value
- 70e0
- Qualifier
- 90% of controle0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The various osmotic potentials generated (-2, -5 and -10 bars) showed significant decrease in germination percentage as at the osmotic potential of -10 bars it was observed 70 in comparison to 90% of control”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Increasing osmotic potential inhibited black gram seedling growth parameters.
- Taxon
- black gramVigna mungot0
- Treatment
- increase in osmotic potentiale0
- Outcome
- seedling growth parametere0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the seedling growth parameter also showed inhibition with increase in osmotic potential”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Increasing osmotic stress decreased black gram chlorophyll a.
- Taxon
- black gramVigna mungot0
- Treatment
- Increase in osmotic stresse0
- Outcome
- Chlorophyll 'a'e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increase in osmotic stress decreased Chlorophyll 'a'”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
At -5 bars, black gram chlorophyll b increased.
- Taxon
- black gramVigna mungot0
- Treatment
- -5 barse0
- Outcome
- Chlorophyll 'b'e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll 'b' was increased in -5 bars”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
At -5 bars, black gram total chlorophyll decreased.
- Taxon
- black gramVigna mungot0
- Treatment
- -5 bars osmotic potentiale0
- Outcome
- total chlorophylle0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total chlorophyll showed decrease in -5 bars osmotic potential”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Black gram total carotenoids and pheophytins increased at -5 bars.
- Taxon
- black gramVigna mungot0
- Treatment
- -5 barse0
- Outcome
- Total carotenoids and pheophytin (a, b and total)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total carotenoids and pheophytin (a, b and total) were highly increased in -5 bars”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Black gram total carotenoids and pheophytins decreased at -10 bars.
- Taxon
- black gramVigna mungot0
- Treatment
- -10 bars osmotic concentratione0
- Outcome
- Total carotenoids and pheophytin (a, b and total)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total carotenoids and pheophytin (a, b and total) were highly increased in -5 bars and decreased in -10 bars osmotic concentration”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Black gram amylase activity decreased under osmotic stress.
- Taxon
- black gramVigna mungot0
- Treatment
- different osmotic gradientse0
- Gene
- amylasee0
- Outcome
- amylasee0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enzymatic activity was found to be decreased in amylase while peroixidase, catalase and SOD were increased at different osmotic gradients in comparison to control”
t0“black gram (Phaseolus mungo)”
Claim · model-written summary
Black gram peroxidase, catalase and SOD activity increased at osmotic gradients versus control.
- Taxon
- black gramVigna mungot0
- Treatment
- different osmotic gradientse0
- Outcome
- peroixidase, catalase and SODe0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroixidase, catalase and SOD were increased at different osmotic gradients in comparison to control”
t0“black gram (Phaseolus mungo)”
The same questions in other papers
drought · physiology: pigments · Vigna mungo (black gram)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.