INVESTIGATING THE EFFECT OF LEAD ON SOME GROWTH PARAMETERS IN EIGHT CORN (ZEA MAYS L.) CULTIVARS IN A CALCAREOUS SOIL

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TAFVIZI M.; MOTESHAREHZADEH B.; SAVAGHEBI GH.R.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:3 Page(s): 97-112

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Title

INVESTIGATING THE EFFECT OF LEAD ON SOME GROWTH PARAMETERS IN EIGHT CORN (ZEA MAYS L.) CULTIVARS IN A CALCAREOUS SOIL

Author(s)

TAFVIZI M. | MOTESHAREHZADEH B. | SAVAGHEBI GH.R. | Issue Writer Certificate

Keywords

CORNQ2

LEADQ2

PHYTOREMEDIATIONQ1

TRANSFER FACTORQ1

BIO-CONCENTRATIONQ2

Abstract

Background and Objectives: Nowadays soil contamination with heavy metals is considered as one of the most serious environmental concerns. Among the heavy metals, LEAD due to inverse impacts on human health and substantial environmental problems causes major concern. Accordingly, this study was carried out with the aim of assessing the ability of different CORN cultivars in the accumulation of LEAD in their parts (shoot and root) and transfer it from the roots to the shoots.Materials and Methods: The Experiment was conducted in a greenhouse condition and was tested in a factorial experiment in completely randomized design with three replicates. LEAD chloride salt (PbCl2) was used for contaminated soil. Treatments included four LEAD levels (0, 100, 200 and 400 mg Pb.kg-1) and eight varieties of maize (260, 301, 302, 370, 500, 604, 647 and 704). Shoots and roots height was measured by a metal ruler. To determine Pb concentration of plant samples, dry ashmethod was used and after extraction Pb concentrations were measured in roots and shoots by atomic absorption spectroscopy (Shimadzu-AA6400).Results: According to the obtained results, dry weight of shoot and root decreased with increasing LEAD-chloride concentration in the soil. Moreover, it was observed that in most varieties (except for 260), the LEAD-chloride (especially for 400 mg/kg) caused reduction of the shoot height and root length compared to the control treatment. The results showed that the amount of LEAD accumulated in the roots was higher than shoots and with increase of LEAD levels in the soil, concentration of LEAD in plant tissues (roots and shoots) has significantly increased (P<0.05). The highest LEAD concentration of shoot (54.33 mg/kg DM) and root (325.11 mg/kg DM) were observed in 400 mg/kg and also both of them were in the variety of 704. The amount of TRANSFER FACTOR and BIO-CONCENTRATION of shoot and root biomass were less than one.Conclusion: Results showed that maize varieties studied in the current experiment accumulated more Pb in roots compared to shoots. Therefore, the amount of TRANSFER FACTOR (TF) was less than one. However, Pb can be toxic to humans and animals causing of health effects. So, it should be considered, especially in land under maize cultivation that is used for livestock feed.

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APA: Copy

TAFVIZI, M., MOTESHAREHZADEH, B., & SAVAGHEBI, GH.R.. (2015). INVESTIGATING THE EFFECT OF LEAD ON SOME GROWTH PARAMETERS IN EIGHT CORN (ZEA MAYS L.) CULTIVARS IN A CALCAREOUS SOIL. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(3), 97-112. SID. https://sid.ir/paper/209796/en

Vancouver: Copy

TAFVIZI M., MOTESHAREHZADEH B., SAVAGHEBI GH.R.. INVESTIGATING THE EFFECT OF LEAD ON SOME GROWTH PARAMETERS IN EIGHT CORN (ZEA MAYS L.) CULTIVARS IN A CALCAREOUS SOIL. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(3):97-112. Available from: https://sid.ir/paper/209796/en

IEEE: Copy

M. TAFVIZI, B. MOTESHAREHZADEH, and GH.R. SAVAGHEBI, “INVESTIGATING THE EFFECT OF LEAD ON SOME GROWTH PARAMETERS IN EIGHT CORN (ZEA MAYS L.) CULTIVARS IN A CALCAREOUS SOIL,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 3, pp. 97–112, 2015, [Online]. Available: https://sid.ir/paper/209796/en

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