Abstract
Contamination of soil with toxic heavy metals is a wide spread environmental problem. Heavy metals adversely affect plant growth, productivity and ultimately human health. A pot experiment was conducted to evaluate the effect of two different concentrations of urea (1500 and 2500 ppm) and single concentration of ethylenediaminetetra acetic acid (EDTA ) (100 ppm) on growth and metal (Pb and Cd) Phytoextraction potential of Cannabis sativa in metals polluted soil. The T2 (Urea 2500 ppm) showed highly significant increase in plant growth and dry biomass, followed by T1 (Urea 1500 ppm) on metals contaminated soil as compared to control (C1). Similarly T4 ( Urea 2500 ppm+ EDTA 100 ppm ) showed higher plant growth, biomass and highly enhanced the uptake of Pb and Cd in different parts of the plant than T3 ( Urea 1500 ppm + EDTA 100 ppm) in metal polluted soil, While T2 (Urea 2500 ppm) alone produced maximum plant growth and biomass than T1 (Urea 1500 ppm) when compared with C1.The application of EDTA alone (T5) (100 ppm EDTA ) increased the Pb and Cd uptake but declined plant growth and biomass which subsequently reduced the total phytoextraction of Pb and Cd. Conclusively,Plant growth and biomass really reduced in metal polluted soil but was increased in metals combination with urea .Addition of EDTA considerably enhanced metals (Pb and Cd) phytoaccumulation.
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Claims 12
Claim · model-written summary
Urea at 2500 ppm significantly increased plant growth and dry biomass versus control.
- Taxon
- Cannabis sativa
Cannabis sativat0 - Treatment
- Urea 2500 ppme0
- Outcome
- plant growth and dry biomasse0
- Direction
- increasee0
- Comparator
- control (C1)e0
- Setting
- metals contaminated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The T2 (Urea 2500 ppm) showed highly significant increase in plant growth and dry biomass, followed by T1 (Urea 1500 ppm) on metals contaminated soil as compared to control (C1)”
t0“Cannabis sativa”
Claim · model-written summary
Urea at 1500 ppm ranked after 2500 ppm for growth and dry biomass relative to control.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- Urea 1500 ppme0
- Outcome
- plant growth and dry biomasse0
- Direction
- increasee0
- Comparator
- control (C1)e0
- Setting
- metals contaminated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The T2 (Urea 2500 ppm) showed highly significant increase in plant growth and dry biomass, followed by T1 (Urea 1500 ppm) on metals contaminated soil as compared to control (C1)”
t0“Cannabis sativa”
Claim · model-written summary
Urea at 2500 ppm with EDTA gave higher growth and biomass than urea at 1500 ppm with EDTA.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- Urea 2500 ppm+ EDTA 100 ppme0
- Outcome
- plant growth, biomasse0
- Direction
- highere0
- Comparator
- Urea 1500 ppm + EDTA 100 ppme0
- Setting
- metal polluted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T4 ( Urea 2500 ppm+ EDTA 100 ppm ) showed higher plant growth, biomass and highly enhanced the uptake of Pb and Cd in different parts of the plant than T3 ( Urea 1500 ppm + EDTA 100 ppm) in metal polluted soil”
t0“Cannabis sativa”
Claim · model-written summary
Urea at 2500 ppm with EDTA enhanced Pb uptake versus urea at 1500 ppm with EDTA.
- Taxon
- Cannabis sativaCannabis sativat0
- Organ / stage
- different parts of the plante0
- Treatment
- Urea 2500 ppm+ EDTA 100 ppme0
- Outcome
- uptake of Pbe0
- Direction
- enhancede0
- Comparator
- Urea 1500 ppm + EDTA 100 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T4 ( Urea 2500 ppm+ EDTA 100 ppm ) showed higher plant growth, biomass and highly enhanced the uptake of Pb and Cd in different parts of the plant than T3 ( Urea 1500 ppm + EDTA 100 ppm) in metal polluted soil”
t0“Cannabis sativa”
Claim · model-written summary
Urea at 2500 ppm with EDTA enhanced Cd uptake versus urea at 1500 ppm with EDTA.
- Taxon
- Cannabis sativaCannabis sativat0
- Organ / stage
- different parts of the plante0
- Treatment
- Urea 2500 ppm+ EDTA 100 ppme0
- Outcome
- uptake of Pb and Cde0
- Direction
- enhancede0
- Comparator
- Urea 1500 ppm + EDTA 100 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T4 ( Urea 2500 ppm+ EDTA 100 ppm ) showed higher plant growth, biomass and highly enhanced the uptake of Pb and Cd in different parts of the plant than T3 ( Urea 1500 ppm + EDTA 100 ppm) in metal polluted soil”
t0“Cannabis sativa”
Claim · model-written summary
Urea at 2500 ppm alone produced maximum growth and biomass versus the 1500 ppm treatment and control.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- Urea 2500 ppme0
- Outcome
- plant growth and biomasse0
- Direction
- maximume0
- Comparator
- Urea 1500 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T2 (Urea 2500 ppm) alone produced maximum plant growth and biomass than T1 (Urea 1500 ppm) when compared with C1”
t0“Cannabis sativa”
Claim · model-written summary
EDTA alone increased Pb and Cd uptake.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- 100 ppm EDTAe0
- Outcome
- Pb and Cd uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of EDTA alone (T5) (100 ppm EDTA ) increased the Pb and Cd uptake”
t0“Cannabis sativa”
Claim · model-written summary
EDTA alone reduced plant growth and biomass.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- 100 ppm EDTAe0
- Outcome
- plant growth and biomasse0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of EDTA alone (T5) (100 ppm EDTA ) increased the Pb and Cd uptake but declined plant growth and biomass”
t0“Cannabis sativa”
Claim · model-written summary
EDTA alone reduced total Pb and Cd phytoextraction following growth reduction.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- 100 ppm EDTAe1
- Outcome
- total phytoextraction of Pb and Cde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“declined plant growth and biomass which subsequently reduced the total phytoextraction of Pb and Cd”
e1“The application of EDTA alone (T5) (100 ppm EDTA )”
t0“Cannabis sativa”
Claim · model-written summary
Metal-polluted soil reduced plant growth and biomass.
- Taxon
- Cannabis sativaCannabis sativat0
- Outcome
- Plant growth and biomasse0
- Direction
- reducede0
- Setting
- metal polluted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth and biomass really reduced in metal polluted soil”
t0“Cannabis sativa”
Claim · model-written summary
Urea combined with metals increased plant growth and biomass.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- ureae0
- Outcome
- Plant growth and biomasse0
- Direction
- increasede0
- Comparator
- metal polluted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth and biomass really reduced in metal polluted soil but was increased in metals combination with urea”
t0“Cannabis sativa”
Claim · model-written summary
EDTA addition enhanced Pb and Cd phytoaccumulation.
- Taxon
- Cannabis sativaCannabis sativat0
- Treatment
- EDTAe0
- Outcome
- metals (Pb and Cd) phytoaccumulatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of EDTA considerably enhanced metals (Pb and Cd) phytoaccumulation”
t0“Cannabis sativa”
The same questions in other papers
ethylenediaminetetraacetic acid · growth · Cannabis sativaPositive and negative results
3 in the opposite direction
- negative
- negative
- negative
ethylenediaminetetraacetic acid · nutrient: content · Cannabis sativaResults agree
3 papers in the same direction as this paper
- positive
- positive
- positive
nitrogen · nutrient: content · Cannabis sativaPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
nitrogen · growth · Cannabis sativaPositive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
10 papers more in this group
See all 14 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.