Abstract
It has been noted that zinc contamination is hazardous which induces researchers seek new means to overcome it. One of the methods is to employ sunflower plant to eliminate zinc in soil. However, there is insufficient information about zinc phytoremediation by sunflower Helianthus annuus in hydroponic system. Hence in this study, a 15-day experiment was conducted using zinc concentrations of 0, 10, 20, and 30 mg/L in a hydroponic system. The effects of zinc concentration on the plant growth (length of root, length of stem and number of leaf), zinc uptake and zinc translocation were evaluated. The findings showed that the plant growth was inhibited, where the zinc concentrations had affected the growth of the sunflower root, length and stem, and the zinc uptake significantly (p<0.05). It was also found that there was a significant variation of root length and zinc uptake in leaves within certain phases statistically (p<0.05). Then the translocation factor was found significant different for the time parameter but not the zinc concentrations (p<0.05). Therefore, this experiment concluded that the sunflower plant was highly tolerant to zinc and able to extract the zinc from contaminated environments. Lastly, this study showed that the sunflower is potential to phytoremediate zinc in a hydroponic system.
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Claims 8
Claim · model-written summary
Zinc concentrations inhibited sunflower growth.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- zinc concentrationse0
- Outcome
- plant growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings showed that the plant growth was inhibited, where the zinc concentrations had affected the growth of the sunflower root, length and stem, and the zinc uptake significantly (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Zinc concentration significantly affected sunflower root growth.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- zinc concentrationse0
- Outcome
- growth of the sunflower roote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the zinc concentrations had affected the growth of the sunflower root, length and stem, and the zinc uptake significantly (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Zinc concentration significantly affected sunflower zinc uptake.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- zinc concentrationse0
- Outcome
- zinc uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the zinc concentrations had affected the growth of the sunflower root, length and stem, and the zinc uptake significantly (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Root length varied significantly among phases.
- Taxon
- sunflowerHelianthus annuust0
- Organ / stage
- roote0
- Outcome
- root lengthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant variation of root length and zinc uptake in leaves within certain phases statistically (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Leaf zinc uptake varied significantly among phases.
- Taxon
- sunflowerHelianthus annuust0
- Organ / stage
- leavese0
- Outcome
- zinc uptake in leavese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant variation of root length and zinc uptake in leaves within certain phases statistically (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Translocation factor differed significantly with time.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- translocation factore0
- Qualifier
- time parametere0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the translocation factor was found significant different for the time parameter but not the zinc concentrations (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
Translocation factor did not differ significantly by zinc concentration.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- zinc concentrationse0
- Outcome
- translocation factore0
- Direction
- not the zinc concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the translocation factor was found significant different for the time parameter but not the zinc concentrations (p<0.05).”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
Claim · model-written summary
The authors conclude sunflower is highly zinc tolerant and can extract zinc from contaminated settings.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- highly tolerant to zince0
- Qualifier
- able to extract the zinc from contaminated environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the sunflower plant was highly tolerant to zinc and able to extract the zinc from contaminated environments.”
t0“Sunflower Helianthus annuus for Phytoremediation of Zinc in Hydroponic System”
The same questions in other papers
zinc atom · nutrient: content · Helianthus annuus (common sunflower)Results differ
4 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →zinc atom · growth · Helianthus annuus (common sunflower)Results differ
5 papers in the same direction as this paper · 23 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 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.