Evaluation of Levels of Some Trace Metals in Crocus sativus L. and Their Transfer Trend from Soil to Saffron by Using Neutron Activation Analysis

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Taghizadeh Tousi Ehsan

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Journal: Saffron Agronomy and Technology Year:2020 | Volume:8 | Issue:3 Page(s): 377-397

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Title

Evaluation of Levels of Some Trace Metals in Crocus sativus L. and Their Transfer Trend from Soil to Saffron by Using Neutron Activation Analysis

Author(s)

Taghizadeh Tousi Ehsan | Issue Writer Certificate

Keywords

Contamination IndicesQ1

Neutron Activation AnalysisQ1

SaffronQ2

Trace elementQ1

Abstract

In this research, concentrations of vanadium, chromium, manganese, cobalt, zinc, and arsenic were measured in Saffron and Saffron farm soil in two counties of Torbat Heydariyeh and Zaveh as two main centers of Saffron production in the world using the Neutron Activation Analysis method. The soil chromium and cobalt concentrations of all farms were found to be much higher than the WHO level and the values of vanadium, manganese, zinc, and arsenic were lower than the admissible level. The deficiency of essential elements for plant growth in the soil was not found. Two statistical analyses were used to evaluate the results of Neutron Activation Analysis. The results of the paired t-test showed that the concentrations of vanadium, manganese, chromium, and cobalt were similar in different soil depths, which indicated distribution of these elements in the soil to be uniform. Also, only the zinc concentrations in the corm and its surrounding soil were statistically significant, which could indicate a strong movement of this element from soil to Saffron. This test also showed that the distribution of the elements was uniform in the shoots. The correlation coefficients show that the uptake of cobalt and manganese by the Saffron may decrease by increasing concentration of zinc in the soil. In addition, based on the contamination index and geo-accumulation, all soils in Torbat Heydarieh and Zaveh are extremely contaminated by chromium. In the adjacent areas in these two counties (south of Torbat Heydarieh and the west of Zaveh), and the central zone of Zaveh, the contamination levels of arsenic in the soil were found to be moderate and very high, respectively. Saffron crops were estimated uncontaminated in all farms, except in eastern Zaveh and south of Torbat Heydarieh that were contaminated by chrome. According to both indices of load and degree of contamination, the soil of all Saffron farms were found to be highly contaminated. Soil contamination was evaluated to be extreme by the using both pollution load Index (PLI) and contamination degree (CD). In addition, Saffron threads were found to be totally uncontaminated (except in the south of Torbat Heydarieh, where the crop was moderately polluted), according to PLI and CD.

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APA: Copy

Taghizadeh Tousi, Ehsan. (2020). Evaluation of Levels of Some Trace Metals in Crocus sativus L. and Their Transfer Trend from Soil to Saffron by Using Neutron Activation Analysis. SAFFRON AGRONOMY AND TECHNOLOGY, 8(3 ), 377-397. SID. https://sid.ir/paper/382872/en

Vancouver: Copy

Taghizadeh Tousi Ehsan. Evaluation of Levels of Some Trace Metals in Crocus sativus L. and Their Transfer Trend from Soil to Saffron by Using Neutron Activation Analysis. SAFFRON AGRONOMY AND TECHNOLOGY[Internet]. 2020;8(3 ):377-397. Available from: https://sid.ir/paper/382872/en

IEEE: Copy

Ehsan Taghizadeh Tousi, “Evaluation of Levels of Some Trace Metals in Crocus sativus L. and Their Transfer Trend from Soil to Saffron by Using Neutron Activation Analysis,” SAFFRON AGRONOMY AND TECHNOLOGY, vol. 8, no. 3 , pp. 377–397, 2020, [Online]. Available: https://sid.ir/paper/382872/en

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