Abstract
A germination test was conducted for understanding the effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.),The results showed that 4 types of heavy metals with low concentration could promote seed germination,while heavy metals with high concentration would inhibit seed germination and radical growth. The toxicity of 4 types of heavy metals on seed germination rate could be ranked as Cu2 + Cd2 + Zn2 + Pb2 +,and the germination rate could reach over80 % for Zn2 +and Pb2 +with a concentration of 1 000 mg /L. The test also showed the same result for radicle growth,bud growth and total biomass and it could be ranked as Cu2 + Cd2 + Zn2 + Pb2 +. This test indicated that seed germination of hemp was highly resistant to Pb2 +and Zn2 +,and it could be ranked as Pb2 + Zn2 +Cd2 + Cu2 +.
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Claims 7
Claim · model-written summary
Heavy metals at low concentration promoted seed germination of industrial hemp.
- Taxon
- industrial hempe0
- Treatment
- heavy metals with low concentratione1
- Outcome
- seed germinatione1
- Direction
- promotee1
Not reportedComparator
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e1“4 types of heavy metals with low concentration could promote seed germination”
Claim · model-written summary
Heavy metals at high concentration inhibited seed germination and radicle growth of industrial hemp.
- Taxon
- industrial hempe0
- Treatment
- heavy metals with high concentratione2
- Outcome
- seed germination and radical growthe2
- Direction
- inhibite2
Not reportedComparator
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e2“heavy metals with high concentration would inhibit seed germination and radical growth”
Claim · model-written summary
The toxicity of Zn, Pb, Cu and Cd on seed germination rate of industrial hemp could be ranked Cu > Cd > Zn > Pb.
- Taxon
- industrial hempe0
- Treatment
- Zn,Pb,Cu and Cde0
- Outcome
- seed germination ratee3
- Direction
- could be ranked ase3
- Qualifier
- Cu2 + Cd2 + Zn2 + Pb2 +e3
Not reportedComparator
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e3“The toxicity of 4 types of heavy metals on seed germination rate could be ranked as Cu2 + Cd2 + Zn2 + Pb2 +”
Claim · model-written summary
The same toxicity ranking Cu > Cd > Zn > Pb applied to radicle growth, bud growth and total biomass of industrial hemp.
- Taxon
- industrial hempe0
- Treatment
- Zn,Pb,Cu and Cde0
- Outcome
- radicle growth,bud growth and total biomasse4
- Direction
- could be ranked ase4
- Qualifier
- Cu2 + Cd2 + Zn2 + Pb2 +e4
Not reportedComparator
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e4“The test also showed the same result for radicle growth,bud growth and total biomass and it could be ranked as Cu2 + Cd2 + Zn2 + Pb2 +”
Claim · model-written summary
Seed germination rate of industrial hemp could reach over 80% with Zn and Pb at 1 000 mg/L.
- Taxon
- industrial hempe0
- Treatment
- Zn2 +and Pb2 +with a concentration of 1 000 mg /Le5
- Outcome
- germination ratee5
- Direction
- could reache5
- Value
- over80 %e5
Not reportedComparator
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e5“the germination rate could reach over80 % for Zn2 +and Pb2 +with a concentration of 1 000 mg /L”
Claim · model-written summary
Seed germination of hemp was highly resistant to Pb and Zn.
- Taxon
- hemp
Cannabis sativa subsp. sativae6 - Treatment
- Pb2 +and Zn2 +e6
- Outcome
- seed germination of hemp was highly resistante6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“This test indicated that seed germination of hemp was highly resistant to Pb2 +and Zn2 +”
Claim · model-written summary
The resistance of hemp seed germination to the tested metals could be ranked Pb > Zn > Cd > Cu.
- Taxon
- hempCannabis sativa subsp. sativae6
- Treatment
- Zn,Pb,Cu and Cde0
- Outcome
- seed germinatione6
- Direction
- could be ranked ase7
- Qualifier
- Pb2 + Zn2 +Cd2 + Cu2 +e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of Zn,Pb,Cu and Cd on germination rate,radicle growth,bud development and total biomass of industrial hemp( Cannabis sativa L.)”
e6“This test indicated that seed germination of hemp was highly resistant to Pb2 +and Zn2 +”
e7“it could be ranked as Pb2 + Zn2 +Cd2 + Cu2 +”
The same questions in other papers
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zinc atom · growth · Cannabis sativaPositive and negative results
2 in the opposite direction
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copper atom · growth · Cannabis sativaPositive and negative results
4 in the opposite direction
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1 paper more in this group
See all 5 papers →cadmium atom · growth · Cannabis sativaPositive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 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.