Abstract
Polyethylene glycol (PEG)-6000, mannitol and sucrose were employed as osmotica for simulating water stress to identify drought resistance at germination stage of wheat. Three osmotica with osmotic potential from -0.25MPa to 1.50MPa were compared. Germinal bud growth in sucrose was inhibited because of molding and stress. Germinal bud elongation was inhibited in -0.25MPa PEG-6000 and -0.50MPa mannitol. Germination percentage significantly decreased in -0.50MPa PEG-6000 and -1.00MPa mannitol. Both of germination percentage and germinal bud length decreased with the increase of osmotic stress because the speed of water absorbing by grains was slow in osmotic stress solutions, and further resulted in lower grain relative water content (RWC) and lower osmotic potential than in water. All parameters associated with germination decreased more seriously in PEG-6000 than in mannitol at the same osmotic potential. For the purpose of evaluating drought resistance of wheat genotypes by identifying germination percentage in osmotic stress solution, -0.50MPa PEG-6000 or -1.00MPa mannitol is ideal, but -0.50MPa PEG-6000 should be preferred if the experiment cost is considered.
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Claims 9
Claim · model-written summary
Sucrose inhibited germinal bud growth through molding and stress.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- sucrosee0
- Outcome
- Germinal bud growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Germinal bud growth in sucrose was inhibited because of molding and stress.”
Claim · model-written summary
PEG-6000 at -0.25MPa inhibited germinal bud elongation.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- -0.25MPa PEG-6000e0
- Outcome
- Germinal bud elongatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Germinal bud elongation was inhibited in -0.25MPa PEG-6000 and -0.50MPa mannitol.”
Claim · model-written summary
Mannitol at -0.50MPa inhibited germinal bud elongation.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- -0.50MPa mannitole0
- Outcome
- Germinal bud elongatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Germinal bud elongation was inhibited in -0.25MPa PEG-6000 and -0.50MPa mannitol.”
Claim · model-written summary
PEG-6000 at -0.50MPa significantly decreased germination percentage.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- -0.50MPa PEG-6000e0
- Outcome
- Germination percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Germination percentage significantly decreased in -0.50MPa PEG-6000 and -1.00MPa mannitol.”
Claim · model-written summary
Mannitol at -1.00MPa significantly decreased germination percentage.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- -1.00MPa mannitole0
- Outcome
- Germination percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Germination percentage significantly decreased in -0.50MPa PEG-6000 and -1.00MPa mannitol.”
Claim · model-written summary
Germination percentage and germinal bud length decreased as osmotic stress increased.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- osmotic stresse0
- Outcome
- germination percentage and germinal bud lengthe0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Both of germination percentage and germinal bud length decreased with the increase of osmotic stress”
Claim · model-written summary
Osmotic stress slowed water absorption by grains and lowered grain relative water content and osmotic potential relative to water.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- osmotic stress solutionse0
- Outcome
- grain relative water content (RWC) and lower osmotic potentiale0
- Direction
- lowere0
- Qualifier
- speed of water absorbing by grains was slowe0
- Comparator
- watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“because the speed of water absorbing by grains was slow in osmotic stress solutions, and further resulted in lower grain relative water content (RWC) and lower osmotic potential than in water.”
Claim · model-written summary
Germination parameters decreased more in PEG-6000 than mannitol at the same osmotic potential.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- PEG-6000e0
- Outcome
- parameters associated with germinatione0
- Direction
- decreased more seriouslye0
- Qualifier
- at the same osmotic potentiale0
- Comparator
- mannitole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“All parameters associated with germination decreased more seriously in PEG-6000 than in mannitol at the same osmotic potential.”
Claim · model-written summary
The authors recommend -0.50MPa PEG-6000 or -1.00MPa mannitol for screening wheat drought resistance by germination percentage, preferring PEG-6000 if cost matters.
- Taxon
- wheatTriticum aestivume0
- Outcome
- -0.50MPa PEG-6000 or -1.00MPa mannitol is ideale0
- Qualifier
- if the experiment cost is considerede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“For the purpose of evaluating drought resistance of wheat genotypes by identifying germination percentage in osmotic stress solution, -0.50MPa PEG-6000 or -1.00MPa mannitol is ideal, but -0.50MPa PEG-6000 should be preferred if the experiment cost is considered.”
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See all 431 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.