Abstract
Heavy metals can accumulate in soil and cause phytotoxicity in plants with some specific symptoms. The present study evaluated the specific symptoms on rice and soybeans plants caused by excess of heavy metals in soil. Rice and soybean were grown in pots containing soil with different levels of heavy metals. A completely randomized design was used, with four replications, using two crop species and seven sample soils with different contamination levels. Rice and soybean exhibited different responses to the high concentrations of heavy metals in the soil. Rice plants accumulated higher Cu, Mn, Pb and Zn concentrations and were more sensitive to high concentrations of these elements in the soil, absorbing them more easily compared to the soybean plants. However, high available Zn concentrations in the soil caused phytotoxicity symptoms in rice and soybean, mainly chlorosis and inhibited plant growth. Further, high Zn concentrations in the soil reduced the Fe concentration in the shoots of soybean and rice plants to levels considered deficient.
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Claims 4
Claim · model-written summary
Rice accumulated higher Cu, Mn, Pb and Zn concentrations than soybean.
- Taxon
- Rice
Oryza sativae0 - Outcome
- higher Cu, Mn, Pb and Zn concentrationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice plants accumulated higher Cu, Mn, Pb and Zn concentrations”
Claim · model-written summary
Rice was more sensitive to high soil metal concentrations than soybean.
- Taxon
- RiceOryza sativat0
- Outcome
- more sensitivee0
- Comparator
- soybean plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were more sensitive to high concentrations of these elements in the soil, absorbing them more easily compared to the soybean plants.”
t0“rice”
Claim · model-written summary
High available Zn caused chlorosis and inhibited growth in rice and soybean.
- Taxon
- rice and soybean
Glycine maxOryza sativae0 - Treatment
- high available Zn concentrations in the soile0
- Outcome
- chlorosis and inhibited plant growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high available Zn concentrations in the soil caused phytotoxicity symptoms in rice and soybean, mainly chlorosis and inhibited plant growth.”
Claim · model-written summary
High soil Zn reduced shoot Fe concentration in soybean and rice to deficient levels.
- Taxon
- soybean and riceGlycine maxOryza sativae0
- Organ / stage
- shootse0
- Treatment
- high Zn concentrations in the soile0
- Outcome
- Fe concentratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high Zn concentrations in the soil reduced the Fe concentration in the shoots of soybean and rice plants to levels considered deficient.”
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