Abstract
Alfalfa seeds(cv.Golden empress)were treated with acidic(pH 3.0,4.5,6.0,7.5)and aluminum(0,50,100,200mg/L Al 3+)solutions to study the effects of pH and Al 3+stresses on seed germination and seedling growth.The results showed that acidity significantly inhibited germination and seedling growth of alfalfa;lower pH had a greater effect than higher pH.Germination rate,germination potential,germination index,stem length and root length of untreated seeds(control)and seeds treated with 50mg/L Al 3+were significantly higher(P0.05)than all other treatments.Germination and seedling growth were seriously reduced by higher Al 3+treatments(100mg/L or 200mg/L)which resulted in a significant decrease in the growth index(P0.05).The combination of acidity and aluminum stress on germination and seedling growth of alfalfa were greater than those of either stress in isolation.Even the treatment of pH4.5and Al 3+50mg/L had a significant negative effect on seed germination and growth.
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Claims 5
Claim · model-written summary
Acidity significantly inhibited alfalfa germination and seedling growth, more strongly at lower pH.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- aciditye0
- Outcome
- germination and seedling growthe0
- Direction
- inhibitede0
- Comparator
- higher pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acidity significantly inhibited germination and seedling growth of alfalfa;lower pH had a greater effect than higher pH.”
Claim · model-written summary
Untreated and 50mg/L Al 3+ seeds had significantly higher germination and growth measures than other treatments.
- Treatment
- 50mg/L Al 3+e0
- Outcome
- Germination rate,germination potential,germination indexe0
- Direction
- highere0
- Comparator
- all other treatmentse0
Not reportedTaxon
Verbatim
e0“Germination rate,germination potential,germination index,stem length and root length of untreated seeds(control)and seeds treated with 50mg/L Al 3+were significantly higher(P0.05)than all other treatments.”
Claim · model-written summary
At 100mg/L or 200mg/L aluminum, germination and seedling growth declined.
- Treatment
- higher Al 3+treatments(100mg/L or 200mg/L)e0
- Outcome
- Germination and seedling growthe0
- Direction
- reducede0
Not reportedTaxonComparator
Verbatim
e0“Germination and seedling growth were seriously reduced by higher Al 3+treatments(100mg/L or 200mg/L)which resulted in a significant decrease in the growth index(P0.05).”
Claim · model-written summary
Combined acidity and aluminum stress had a greater adverse effect than either alone.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- combination of acidity and aluminum stresse0
- Outcome
- germination and seedling growthe0
- Direction
- greatere0
- Comparator
- either stress in isolatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of acidity and aluminum stress on germination and seedling growth of alfalfa were greater than those of either stress in isolation.”
Claim · model-written summary
pH4.5 with Al 3+50mg/L significantly harmed seed germination and growth.
Not reportedTaxonComparator
Verbatim
e0“Even the treatment of pH4.5and Al 3+50mg/L had a significant negative effect on seed germination and growth.”
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