Paper · 2015 · International Letters of Natural Sciences

Toxic Effects of Chromium on Growth of some Paddy Varieties

M. Nagarajan; K. Sankar Ganesh

3
claims
5
verbatim quotes
11
citations
1
research areas
✓
Open access · cc-by

Abstract

Chromium is a serious heavy metal and it is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study the accumulation of Cr and its effect on the Germination and growth of some paddy varieties. Thus, the varieties such as ADT-43, ADT-45, IR-50, TKM-9, CO-33, ASD-16 and CO-43 are grown in petriplates treated with different concentrations of Chromium (0, 5, 10, 25, 50, 100, and 200 mg/L). After one week exposure the seedlings were removed and morphophysiological parameters like germination percentage, seedling length and dry weight of paddy varieties and accumulation of Cr were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiological parameters in the treatments rather than control and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the paddy seedlings under treatment.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 3

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chromium above 100 mg/L reduced germination percentage, seedling length, and dry weight relative to control.

Taxon
Paddyt0
Treatment
more than 100 mg/L chromiume0
Outcome
morphophysiological parameterse0
Direction
reductione0
Comparator
controle0

Verbatim

e0

“concentrations more than 100 mg/L chromium cause the reduction of morphophysiological parameters in the treatments rather than control”

✓ located verbatim in the source · abstract, characters 795–929 · show in text ↑
t0

“Paddy”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chromium addition increased chromium content in paddy seedling roots and shoots.

Taxon
Paddyt0
Organ / stage
roots and shootse0
Treatment
Cr additione0
Outcome
chromium contente0
Direction
enhancemente0

Not reportedComparator

Verbatim

e0

“Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings”

✓ located verbatim in the source · abstract, characters 934–1039 · show in text ↑
t0

“Paddy”

✓ located verbatim in the source · title, characters 44–49 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chromium accumulation was much higher in roots than shoots of treated paddy seedlings.

Taxon
paddye0
Organ / stage
rootse0
Outcome
accumulation of chromiume0
Direction
much highere0
Comparator
shootse0

Verbatim

e0

“accumulation of chromium in the roots was much higher than the shoots of the paddy seedlings under treatment”

✓ located verbatim in the source · abstract, characters 1064–1172 · show in text ↑

chromium atom · molecular: metabolites · Oryza sativa (rice)Positive and negative results

13 papers: 3 positive, 10 negative or no effect

9 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 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.