Abstract
Increased salinity stress in environment challenges the seed germination, emergence, and crop yield. The issue carefully demands the seed priming strategies to mitigate the drastic effects of salinity. Current study was conducted to appraise the modulation in germination, photosynthetic pigments, yield, and gas exchange attributes of sesame cultivars (TS-5 and TH-6) to pre-sowing seed treatment with glycinebetaine (GB) under salt stress. Seeds were treated with GB (25 mM) and water prior to sowing for 16 h. Ten seeds of each cultivar were laid down on moistened filter paper (0 mM and 70 mM NaCl) in petri plates to assess the germination attributes under salt stress. In a separate pot experiment, GB primed and water primed seeds were sown in 10 kg sand filled plastic pots. After two weeks of seed sowing, two concentrations of salinity (0 mM and 70 mM) were maintained by dissolving NaCl in full strength Hoagland nutrient solution. Data for germination, gas exchange and yield parameters were collected after one week, two week and ten weeks respectively. Salt stress decreased the germination percentage, plumule/radicle length, number of seeds/plant, Chl a, net photosynthetic rate (PN), stomatal conductance (gs) and transpiration rate (E), while intercellular CO2 concentration (Ci) and ratio of internal to atmospheric CO2 concentration Ci/Ca ratio were increased. However, seed mass/plant, Chl b and carotenoids remained unaffected under salinity. GB mitigated the saline effects by increasing the germination percentage, plumule length, number of seeds/plant and PN and showed nonsignificant effect on radicle length, seed mass per plant and Chl a, b and carotenoid contents. Sesame cultivar TH-6 showed better performance as compared to TS-5 under saline conditions. GB is powerful osmoregulator to minimize salt effect in sesame by enhancing physiological and yield attributes
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Claims 9
Claim · model-written summary
Salt stress reduced germination percentage, plumule and radicle length, and seeds per plant.
- Taxon
- Sesamum indicum
Sesamum indicumt0 - Treatment
- Salt stresse0
- Outcome
- germination percentage, plumule/radicle length, number of seeds/plante0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress decreased the germination percentage, plumule/radicle length, number of seeds/plant”
t0“Sesamum indicum”
Claim · model-written summary
Salt stress reduced Chl a, photosynthetic rate, stomatal conductance and transpiration.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- Salt stresse0
- Outcome
- Chl a, net photosynthetic rate (PN), stomatal conductance (gs) and transpiration rate (E)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress decreased the germination percentage, plumule/radicle length, number of seeds/plant, Chl a, net photosynthetic rate (PN), stomatal conductance (gs) and transpiration rate (E)”
t0“Sesamum indicum”
Claim · model-written summary
Salt stress increased intercellular CO2 concentration and Ci/Ca ratio.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- salinitye1
- Outcome
- intercellular CO2 concentration (Ci) and ratio of internal to atmospheric CO2 concentration Ci/Ca ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercellular CO2 concentration (Ci) and ratio of internal to atmospheric CO2 concentration Ci/Ca ratio were increased”
t0“Sesamum indicum under saline stress”
e1“seed mass/plant, Chl b and carotenoids remained unaffected under salinity”
Claim · model-written summary
Seed mass, Chl b and carotenoids were unaffected by salinity.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- salinitye0
- Outcome
- seed mass/plant, Chl b and carotenoidse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed mass/plant, Chl b and carotenoids remained unaffected under salinity”
t0“Sesamum indicum”
Claim · model-written summary
Glycinebetaine priming raised germination percentage, plumule length and seeds per plant under salinity.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- GBe0
- Outcome
- germination percentage, plumule length, number of seeds/plante0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GB mitigated the saline effects by increasing the germination percentage, plumule length, number of seeds/plant and PN”
t0“Sesamum indicum”
Claim · model-written summary
Glycinebetaine priming raised PN under salinity.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- GBe0
- Outcome
- PNe0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GB mitigated the saline effects by increasing the germination percentage, plumule length, number of seeds/plant and PN”
t0“Sesamum indicum”
Claim · model-written summary
Glycinebetaine had nonsignificant effects on radicle length and seed mass.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- GBe1
- Outcome
- radicle length, seed mass per plante0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“showed nonsignificant effect on radicle length, seed mass per plant and Chl a, b and carotenoid contents”
t0“Sesamum indicum”
e1“GB mitigated the saline effects by increasing the germination percentage, plumule length, number of seeds/plant and PN”
Claim · model-written summary
Glycinebetaine had nonsignificant effects on Chl a, b and carotenoid contents.
- Taxon
- Sesamum indicumSesamum indicumt0
- Treatment
- GBe1
- Outcome
- Chl a, b and carotenoid contentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“showed nonsignificant effect on radicle length, seed mass per plant and Chl a, b and carotenoid contents”
t0“Sesamum indicum”
e1“GB mitigated the saline effects by increasing the germination percentage, plumule length, number of seeds/plant and PN”
Claim · model-written summary
TH-6 performed better than TS-5 under saline conditions.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesame cultivar TH-6 showed better performance as compared to TS-5 under saline conditions”
The same questions in other papers
salinity · physiology: photosynthesis · Sesamum indicum (sesame)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
salinity · yield · Sesamum indicum (sesame)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
7 papers more in this group
See all 11 papers →salinity · physiology: pigments · Sesamum indicum (sesame)Results agree
1 paper in the same direction as this paper
- negative
salinity · physiology: gas exchange · Sesamum indicum (sesame)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.