Abstract
Increasing levels of hazardous heavy metals, which enter soil and water ecosystems have had a detrimental effect on global living organisms and needs special attention. The effect of inoculation with three Glomus mycorrhizal fungi (G. mosseae, G. etunicatum and G. constrictum) on hemp growth and some biological properties was evaluated in a soil contaminated with different levels of lead (0, 600, 1200 and 1800mg·kg-1 Pb soil) in the form of Pb(NO3)2. The results show that shoot and root dry weights decreased with increasing Pb levels in soil. But Pb concentration in roots and shoots of hemp increased significantly with increasing Pb levels in soil. However the growth of mycorrhizal inoculated hemps was significantly higher than that of non-inoculated hemp. Mycorrhizal inoculation increased the concentration of Pb in the shoot and root of hemp. In this study, both translocation factor (TF) and enrichment factor (EF) were < 1 and decreased with increasing Pb concentration in soil. The TF was higher in non-inoculated hemp than inoculated hemps. It shows the inhibition effect of mycorrhiza in translocation of Pb from root to shoot. The EF of all inoculated hemps (0.18) was significantly greater than non-inoculated hemp (0.17), showing increased uptake of Pb due to inoculation with mycorrhiza. Simple linear regressions show that the diethylenetriaminepentaacetic acid (DTPA) extractable Pb is more suitable index for evaluating the toxicity effect of soil Pb than the total Pb content.
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Claims 9
Claim · model-written summary
Shoot and root dry weights of hemp decreased with increasing Pb levels in soil.
- Taxon
- hemp
Cannabis sativa subsp. sativat0 - Treatment
- increasing Pb levels in soile1
- Outcome
- shoot and root dry weightse1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e1“The results show that shoot and root dry weights decreased with increasing Pb levels in soil”
Claim · model-written summary
Pb concentration in hemp roots and shoots increased significantly with increasing Pb levels in soil.
- Taxon
- hempCannabis sativa subsp. sativat0
- Treatment
- increasing Pb levels in soile2
- Outcome
- Pb concentration in roots and shoots of hempe2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e2“But Pb concentration in roots and shoots of hemp increased significantly with increasing Pb levels in soil”
Claim · model-written summary
Mycorrhizal inoculation with Glomus species gave significantly higher growth of hemp than non-inoculated hemp.
- Taxon
- hempCannabis sativa subsp. sativat0
- Treatment
- mycorrhizal inoculatede3
- Interactor
- Glomus mycorrhizal fungie0symbiont
- Outcome
- growthe3
- Direction
- highere3
- Comparator
- non-inoculated hempe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e0“The effect of inoculation with three Glomus mycorrhizal fungi (G. mosseae, G. etunicatum and G. constrictum) on hemp growth and some biological properties was evaluated”
e3“However the growth of mycorrhizal inoculated hemps was significantly higher than that of non-inoculated hemp”
Claim · model-written summary
Mycorrhizal inoculation increased the Pb concentration in shoot and root of hemp.
- Taxon
- hempCannabis sativa subsp. sativae4
- Treatment
- Mycorrhizal inoculatione4
- Outcome
- concentration of Pb in the shoot and root of hempe4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e4“Mycorrhizal inoculation increased the concentration of Pb in the shoot and root of hemp”
Claim · model-written summary
Translocation factor and enrichment factor of Pb in hemp were below 1 and decreased with increasing soil Pb concentration.
- Taxon
- hempCannabis sativa subsp. sativat0
- Treatment
- increasing Pb concentration in soile5
- Outcome
- translocation factor (TF) and enrichment factor (EF)e5
- Direction
- decreasede5
- Value
- < 1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e5“both translocation factor (TF) and enrichment factor (EF) were < 1 and decreased with increasing Pb concentration in soil”
Claim · model-written summary
The translocation factor of Pb was higher in non-inoculated hemp than in mycorrhizal inoculated hemp.
- Taxon
- hempCannabis sativa subsp. sativat0
- Treatment
- inoculated hempse6
- Outcome
- TFe6
- Direction
- highere6
- Comparator
- non-inoculated hempe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e6“The TF was higher in non-inoculated hemp than inoculated hemps”
Claim · model-written summary
Mycorrhiza inhibits translocation of Pb from root to shoot in hemp.
- Taxon
- hempCannabis sativa subsp. sativat0
- Outcome
- translocation of Pb from root to shoote7
- Qualifier
- inhibition effect of mycorrhizae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e7“It shows the inhibition effect of mycorrhiza in translocation of Pb from root to shoot”
Claim · model-written summary
The enrichment factor of Pb was 0.18 in mycorrhizal inoculated hemp, significantly greater than 0.17 in non-inoculated hemp.
- Taxon
- hempCannabis sativa subsp. sativat0
- Treatment
- inoculated hempse1
- Outcome
- EFe1
- Direction
- greatere1
- Value
- 0.18e1
- Qualifier
- 0.17e1
- Comparator
- non-inoculated hempe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e1“The EF of all inoculated hemps (0.18) was significantly greater than non-inoculated hemp (0.17)”
Claim · model-written summary
DTPA-extractable Pb is a more suitable index than total Pb content for evaluating the toxicity of soil Pb.
- Taxon
- hempCannabis sativa subsp. sativat0
- Outcome
- more suitable index for evaluating the toxicity effect of soil Pbe1
- Qualifier
- Simple linear regressionse1
- Comparator
- total Pb contente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hemp (Cannabis Sativa)”
e1“Simple linear regressions show that the diethylenetriaminepentaacetic acid (DTPA) extractable Pb is more suitable index for evaluating the toxicity effect of soil Pb than the total Pb content”
The same questions in other papers
mycorrhiza · growth · Cannabis sativaPositive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →inoculation · growth · Cannabis sativaPositive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
3 papers more in this group
See all 7 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.