Abstract
Cadmium (Cd) toxicity has varying consequences on plants growth and development. This research focused on examining the influence of Cd toxicity on fragrant rice genotypes and its consequences on yield, yield related parameters, and grain quality traits. Randomized complete block design comprising five different fragrant rice cultivars (Meixiangzhan 2, Xiangyaxiangzhan, Guixiangzhan, Basmati, and Nongxiang 18) and four Cd levels (0, 50, 100, and 150 mg/kg soil) was used. The results showed that, with increased levels of soil Cd toxicity, Cd uptake in roots and distribution to other organs increased in dose dependent manner. Uptake and accumulation were higher in roots than in shoots with the highest uptake in both roots and shoots observed in Meixiangzhan 2, followed by Nongxiang 18, Basmati, Xiangyaxiangzhan, and Guixiangzhan cultivars. With increased Cd toxicity, yield and yield parameters were affected in all cultivars. Grain quality was also found affected under Cd stress condition. The results suggested that soil Cd toxicity has negative consequences on rice performance and uptake varies among cultivars. Conclusively, Cd toxicity impaired rice yield formation and grain quality by altering yield components (panicles number, spikelet per panicles, and spikelet setting (%)); however, Guixiangzhan variety performed better, while Meixiangzhan 2 performed less in terms of minimum Cd uptake and distribution to grains, yield, and grain quality reduction under Cd stress condition.
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Claims 6
Claim · model-written summary
Cadmium uptake in roots and distribution to other organs increased with soil cadmium dose.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- rootse0
- Treatment
- increased levels of soil Cd toxicitye0
- Outcome
- Cd uptake in roots and distribution to other organse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increased levels of soil Cd toxicity, Cd uptake in roots and distribution to other organs increased in dose dependent manner”
t0“Fragrant Rice”
Claim · model-written summary
Cadmium accumulation was higher in roots than shoots.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- Uptake and accumulatione0
- Direction
- highere0
- Comparator
- shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake and accumulation were higher in roots than in shoots”
t0“Fragrant Rice”
Claim · model-written summary
Meixiangzhan 2 had the highest cadmium uptake in roots and shoots among the five cultivars.
- Taxon
- riceOryza sativat0
- Material
- Meixiangzhan 2e0
- Outcome
- uptake in both roots and shootse0
- Direction
- higheste0
- Comparator
- Nongxiang 18, Basmati, Xiangyaxiangzhan, and Guixiangzhan cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest uptake in both roots and shoots observed in Meixiangzhan 2, followed by Nongxiang 18, Basmati, Xiangyaxiangzhan, and Guixiangzhan cultivars”
t0“Fragrant Rice”
Claim · model-written summary
Increasing cadmium stress impaired rice yield and yield components in all cultivars.
- Taxon
- riceOryza sativat0
- Treatment
- increased Cd toxicitye0
- Outcome
- yield and yield parameterse0
- Qualifier
- all cultivarse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increased Cd toxicity, yield and yield parameters were affected in all cultivars”
t0“Fragrant Rice”
Claim · model-written summary
Cadmium stress affected grain quality.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stress conditione0
- Outcome
- Grain qualitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain quality was also found affected under Cd stress condition”
t0“Fragrant Rice”
Claim · model-written summary
Guixiangzhan performed better than Meixiangzhan 2 for low grain cadmium distribution and smaller yield and quality reductions under cadmium stress.
- Taxon
- riceOryza sativat0
- Material
- Guixiangzhane0
- Treatment
- Cd stress conditione0
- Outcome
- minimum Cd uptake and distribution to grains, yield, and grain quality reductione0
- Direction
- performed bettere0
- Comparator
- Meixiangzhan 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guixiangzhan variety performed better, while Meixiangzhan 2 performed less in terms of minimum Cd uptake and distribution to grains, yield, and grain quality reduction under Cd stress condition”
t0“Fragrant Rice”
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