Inter-Relationships between soil-plant transfer coefficient, Plant uptake factor and Translocation factor of heavy metals in roadside Grown wheat and Maize in Sudan Savanna Ecology of Nigeria.
Journal Title: Advance Research Journal of Multidisciplinary Discoveries - Year 2019, Vol 39, Issue 39
Abstract
Phytoaccumulation of metals (Cd, Cr, Cu, Pb, Zn) in roadside grown wheat and maize varieties (Pavon-76, Siettecerros, Zea mays L. and Zea mays everta L.) and the toxicity and phytoremediation capability of the plants was investigated. Four sampling sites, roadside (SU 1, SU 3) and distant sites (SU 2 and SU 4) were selected by principle to represent the level of pollution near major traffic routes and were the reference sampling points. Whole plant metal levels of the four crops were determined using the multi-elemental technique- Energy Dispersive X-ray Fluorescent (EDXRF) and double beam AAS at A.B.U Zaria. Individual metal levels for each plant parts were also determined and used for computing the Plant uptake factor (PUF), soil-plant transfer coefficient (TC) and translocation factor (TF) for each metal. Pearson correlation analyses between the risk assessment factors of the metals were evaluated. Results revealed a positive significant (P<0.05) relationship between PUF/TC and PUF/TF for Cr and Zn in Pavon-76 at SU 1, PUF/TC for Cr and Zn in the two species of Zea mays L.(SU 3 and SU 4) and Cu in Siettecerros (SU 2) indicates special ability or strong selective ability of each of the crops to accumulate certain metals. The inverse correlation between PUF/TC {-0. 0797=Cu at SU 1; -0.0317=Cd at SU 3}, PUF/TF {-0 .5926=Cd at SU 2; -0. 8058=Cr, -0. 6065=Cu, -0. 4492=Zn at SU 3} and TC/TF{-0. 2145=Cd; -0. 2675=Cr, -0. 0124=Cu at SU 4}, among the metals suggests a selective ability of each of these crops in accumulating theses metals and that the source of Cd, Cr, Cu and Zn in the crops is mainly from the soil than from the atmosphere. The selected risk assessment factors have proven useful in attempting to estimate the degree of uptake of these metals in the crops.
Authors and Affiliations
ANONGO M’EMBER CATHERINE, UYOVBISERE EDWARD ONIOVOSA
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