Abstract
A study was carried out to compare the appreciable differences between various durum wheat genotypes during the germination and seedling stages. Twenty promising spring durum wheat genotypes were tested under four (0.0, -0.3, -0.6 3 and -0.9 MPa) osmotic stresses conditions laid out in factorial experiments based on a completely randomized design (CRD) with three replications. Osmotic potentials were produced using different concentrations of polyethylene glycol (PEG 6000) at 20°C. Results revealed that all the recorded traits were significantly (P<0.01) affected by osmotic stress treatments. There were remarkable decreases in germination percentage, coleoptile, root and shoot length, shoot dry weight, seedling dry weight with increasing osmotic stress. However the germination rate showed a slight increase under low osmotic stress condition. The highest germination percentage was 93.5%, observed in D1 (control) treatment whilst the lowest (42%) was seen in the D4 (-0.9 MPa) treatment. Furthermore, root dry weight, root to shoot length ratio and root to shoot dry weight ratio also increased under low osmotic stress, although severe osmotic stress caused a sizeable decrease in their values. The genotypic effects on germination percentage and rate were highly significant (P<0.01), whilst its effects on coleoptile, root length and root dry weight were significant (P<0.05). Genotype four (G4) exhibited the highest germination percentage (84.17%) whilst G17 showed the lowest value (62.92%). Correlation studies amongst the different traits showed that the highest correlation coefficient was between seedling dry weight and shoot dry weight (r = 0.96), whilst the lowest value was between germination rate and root to shoot dry weight (r = 0.13). _____________________________________________________________________________________________________________
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Claims 11
Claim · model-written summary
Osmotic stress significantly affected all recorded seedling traits.
- Taxon
- durum wheat
Triticum turgidum subsp. durume1 - Treatment
- osmotic stress treatmentse0
- Outcome
- all the recorded traitse0
- Value
- P<0.01e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the recorded traits were significantly (P<0.01) affected by osmotic stress treatments”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Increasing osmotic stress decreased germination percentage, coleoptile, root and shoot length, and shoot and seedling dry weight.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- increasing osmotic stresse0
- Outcome
- germination percentage, coleoptile, root and shoot length, shoot dry weight, seedling dry weighte0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remarkable decreases in germination percentage, coleoptile, root and shoot length, shoot dry weight, seedling dry weight with increasing osmotic stress”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Germination rate increased slightly under low osmotic stress.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- low osmotic stress conditione0
- Outcome
- germination ratee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination rate showed a slight increase under low osmotic stress condition”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Control treatment D1 had the highest germination percentage, 93.5%.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- D1 (control) treatmente0
- Outcome
- germination percentagee0
- Direction
- higheste0
- Value
- 93.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest germination percentage was 93.5%, observed in D1 (control) treatment”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Root dry weight and root-to-shoot length and dry-weight ratios increased under low osmotic stress.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- low osmotic stresse0
- Outcome
- root dry weight, root to shoot length ratio and root to shoot dry weight ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root dry weight, root to shoot length ratio and root to shoot dry weight ratio also increased under low osmotic stress”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Severe osmotic stress substantially decreased root dry weight and root-to-shoot ratios.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- severe osmotic stresse0
- Outcome
- root dry weight, root to shoot length ratio and root to shoot dry weight ratioe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root dry weight, root to shoot length ratio and root to shoot dry weight ratio also increased under low osmotic stress, although severe osmotic stress caused a sizeable decrease in their values”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Genotype significantly affected germination percentage and rate at P<0.01.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- durum wheat genotypese1
- Outcome
- germination percentage and ratee0
- Value
- P<0.01e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotypic effects on germination percentage and rate were highly significant (P<0.01)”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Genotype significantly affected coleoptile and root length and root dry weight at P<0.05.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- durum wheat genotypese1
- Outcome
- coleoptile, root length and root dry weighte0
- Value
- P<0.05e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its effects on coleoptile, root length and root dry weight were significant (P<0.05)”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
G4 had the highest genotype germination percentage, 84.17%.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Genotype four (G4)e0
- Outcome
- germination percentagee0
- Direction
- higheste0
- Value
- 84.17%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotype four (G4) exhibited the highest germination percentage (84.17%)”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Seedling and shoot dry weights had the highest reported trait correlation, r = 0.96.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Organ / stage
- seedlinge0
- Outcome
- correlation coefficiente0
- Value
- r = 0.96e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest correlation coefficient was between seedling dry weight and shoot dry weight (r = 0.96)”
e1“Twenty promising spring durum wheat genotypes”
Claim · model-written summary
Germination rate and root-to-shoot dry weight had the lowest reported trait correlation, r = 0.13.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Organ / stage
- root to shoote0
- Outcome
- germination rate and root to shoot dry weighte0
- Value
- r = 0.13e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lowest value was between germination rate and root to shoot dry weight (r = 0.13)”
e1“Twenty promising spring durum wheat genotypes”
The same questions in other papers
drought · growth · Triticum turgidum (rivet wheat)Results differ
6 papers in the same direction as this paper · 22 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
26 papers more in this group
See all 30 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.