Root and shoot elongation as an assessment of heavy metal toxicity and "Zn equivalent value' of edible crops

Y. H. Cheung; M. H. Wong; N. F.Y. Tam

Root and shoot elongation as an assessment of heavy metal toxicity and "Zn equivalent value' of edible crops

Y. H. Cheung, M. H. Wong, N. F.Y. Tam

Research output: Contribution to journal › Article › peer-review

Abstract

Seeds of 13 edible plant species were tested for their response to heavy metals during their early development. A short-term root elongation test of six days could be used to evaluate the degree of toxicity of aqueous samples containing heavy metals. Shoot elongation was less sensitive to metals than root elongation. Relative toxicity followed the pattern Ni > Cu > Zn. Results on the relative toxicity of Zn:Cu:Ni to various plant species indicated that the ratios were species-specific. The Zn equivalent concept of Zn:Cu:Ni=1:2:8 could not be applied to all the plant species tested. The root growth of seeds of Brassica parachinensis (Chinese cabbage) placed on filter papters in petri dishes to which metal solutions were added were tested. Sensitivity ranking showed Ni > Cd > Cu > Al > Fe > Zn > Pb > Mn > Ag. -from Authors

Original language	English
Pages (from-to)	377-383
Number of pages	7
Journal	Unknown Journal
Publication status	Published - 1990
Externally published	Yes

Cite this

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title = "Root and shoot elongation as an assessment of heavy metal toxicity and {"}Zn equivalent value' of edible crops",

abstract = "Seeds of 13 edible plant species were tested for their response to heavy metals during their early development. A short-term root elongation test of six days could be used to evaluate the degree of toxicity of aqueous samples containing heavy metals. Shoot elongation was less sensitive to metals than root elongation. Relative toxicity followed the pattern Ni > Cu > Zn. Results on the relative toxicity of Zn:Cu:Ni to various plant species indicated that the ratios were species-specific. The Zn equivalent concept of Zn:Cu:Ni=1:2:8 could not be applied to all the plant species tested. The root growth of seeds of Brassica parachinensis (Chinese cabbage) placed on filter papters in petri dishes to which metal solutions were added were tested. Sensitivity ranking showed Ni > Cd > Cu > Al > Fe > Zn > Pb > Mn > Ag. -from Authors",

author = "Cheung, {Y. H.} and Wong, {M. H.} and Tam, {N. F.Y.}",

year = "1990",

language = "English",

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TY - JOUR

T1 - Root and shoot elongation as an assessment of heavy metal toxicity and "Zn equivalent value' of edible crops

AU - Cheung, Y. H.

AU - Wong, M. H.

AU - Tam, N. F.Y.

PY - 1990

Y1 - 1990

N2 - Seeds of 13 edible plant species were tested for their response to heavy metals during their early development. A short-term root elongation test of six days could be used to evaluate the degree of toxicity of aqueous samples containing heavy metals. Shoot elongation was less sensitive to metals than root elongation. Relative toxicity followed the pattern Ni > Cu > Zn. Results on the relative toxicity of Zn:Cu:Ni to various plant species indicated that the ratios were species-specific. The Zn equivalent concept of Zn:Cu:Ni=1:2:8 could not be applied to all the plant species tested. The root growth of seeds of Brassica parachinensis (Chinese cabbage) placed on filter papters in petri dishes to which metal solutions were added were tested. Sensitivity ranking showed Ni > Cd > Cu > Al > Fe > Zn > Pb > Mn > Ag. -from Authors

AB - Seeds of 13 edible plant species were tested for their response to heavy metals during their early development. A short-term root elongation test of six days could be used to evaluate the degree of toxicity of aqueous samples containing heavy metals. Shoot elongation was less sensitive to metals than root elongation. Relative toxicity followed the pattern Ni > Cu > Zn. Results on the relative toxicity of Zn:Cu:Ni to various plant species indicated that the ratios were species-specific. The Zn equivalent concept of Zn:Cu:Ni=1:2:8 could not be applied to all the plant species tested. The root growth of seeds of Brassica parachinensis (Chinese cabbage) placed on filter papters in petri dishes to which metal solutions were added were tested. Sensitivity ranking showed Ni > Cd > Cu > Al > Fe > Zn > Pb > Mn > Ag. -from Authors

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M3 - Article

AN - SCOPUS:0025591404

SP - 377

EP - 383

JO - Unknown Journal

JF - Unknown Journal

ER -

Root and shoot elongation as an assessment of heavy metal toxicity and "Zn equivalent value' of edible crops

Abstract

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