Abstract
The eco-toxicity of Cu, Zn, Pb, and Cd in the single form was tested with four types of soils(red loam soils, meadow brown soils, chestnut soils, and dark brown soils) and their combined effect was determined with meadow brown soils. The results showed that with the same content of heavy metals, the root elongation was strongly inhabited than the seed germination, and it indicated that root was more sensitive to heavy metals pollution. The inhibition rate of heavy metals pollution on the root elongation (IRHMRE) of wheat was significantly related with the contents of organic matter (OR) and Kjedahl-nitrogen (K-N) in soils (R2OR = 0.91, R2K-N = 0.92). However, IRHMRE was not significantly related with soil pH as did with OR and K-N, so does the content of CEC (R2pH = 0.62, R2CEC = 0.60). Whether under the low concentration of Cu, Zn, Pb, and Cd resulted in an irritated effect in root elongation, or under high concentration resulted in an inhibition effect in the single form, an synergistic effect occurred in the combined form.
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Claims 8
Claim · model-written summary
At equal heavy metal content, wheat root elongation was more inhibited than seed germination.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- heavy metalse0
- Outcome
- root elongatione0
- Direction
- strongly inhabitede0
- Comparator
- seed germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the same content of heavy metals, the root elongation was strongly inhabited than the seed germination”
t0“wheat”
Claim · model-written summary
Wheat root elongation inhibition was significantly related to soil organic matter.
- Taxon
- wheatTriticum aestivume0
- Outcome
- inhibition rate of heavy metals pollution on the root elongatione0
- Qualifier
- R2OR = 0.91e0
- Setting
- soilse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibition rate of heavy metals pollution on the root elongation (IRHMRE) of wheat was significantly related with the contents of organic matter (OR) and Kjedahl-nitrogen (K-N) in soils (R2OR = 0.91, R2K-N = 0.92).”
Claim · model-written summary
Wheat root elongation inhibition was significantly related to soil Kjedahl nitrogen.
- Taxon
- wheatTriticum aestivume0
- Outcome
- inhibition rate of heavy metals pollution on the root elongatione0
- Qualifier
- R2K-N = 0.92e0
- Setting
- soilse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibition rate of heavy metals pollution on the root elongation (IRHMRE) of wheat was significantly related with the contents of organic matter (OR) and Kjedahl-nitrogen (K-N) in soils (R2OR = 0.91, R2K-N = 0.92).”
Claim · model-written summary
Wheat root elongation inhibition was not significantly related to soil pH.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- IRHMREe0
- Qualifier
- R2pH = 0.62e0
- Setting
- soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IRHMRE was not significantly related with soil pH as did with OR and K-N, so does the content of CEC (R2pH = 0.62, R2CEC = 0.60).”
t0“wheat”
Claim · model-written summary
Wheat root elongation inhibition was not significantly related to CEC.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- IRHMREe0
- Qualifier
- R2CEC = 0.60e0
- Setting
- soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IRHMRE was not significantly related with soil pH as did with OR and K-N, so does the content of CEC (R2pH = 0.62, R2CEC = 0.60).”
t0“wheat”
Claim · model-written summary
Low concentrations of individual heavy metals stimulated wheat root elongation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- low concentration of Cu, Zn, Pb, and Cde0
- Outcome
- root elongatione0
- Direction
- irritated effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under the low concentration of Cu, Zn, Pb, and Cd resulted in an irritated effect in root elongation”
t0“wheat”
Claim · model-written summary
High concentrations of individual heavy metals inhibited wheat root elongation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- high concentratione0
- Outcome
- root elongatione0
- Direction
- inhibition effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whether under the low concentration of Cu, Zn, Pb, and Cd resulted in an irritated effect in root elongation, or under high concentration resulted in an inhibition effect in the single form”
t0“wheat”
Claim · model-written summary
Combined heavy metals had a synergistic effect on wheat root elongation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- combined forme0
- Outcome
- synergistic effecte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an synergistic effect occurred in the combined form.”
t0“wheat”
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