Effect of different rates of Cd on growth and chemical composition of spinach
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 7, Issue 12
Abstract
Heavy metals are one of the most important environmental pollutants and their accumulation in agricultural products and food can be dangerous for human health. Vegetables are one the most important components of our food diet which contain essential elements and maybe contaminated with heavy metals. In order to study the effects of different levels of soil available Cd on growth and chemical composition of spinach, a factorial experiment with completely randomized design and three replications was conducted in greenhouse of Zanjan Agricultural Research Center in 2009. In this experiment factorial combinations of five levels of Cd (0, 10, 20, 40 and 80 mg/kg soil) were used as 25 treatments using cadmium sulfate to artificially contaminate soil samples. Three months after sowing spinach seeds, plants from different treatments were harvested and their biomass and chemical composition were determined. The results of the experiment showed that Increase in available form of soil cadmium up to 20 mg/kg increased the dry weight of aerial parts in spinach but higher concentrations of this element decreased the spinach biomass significantly. With increase in available form of soil Cd up to 40 mg/kg the Cd content of leaf increased but at higher concentrations of soil Cd the concentration of Cd in leaf decreased significantly. With increase in concentration of soil Cd the leaf concentrations of Cu, Zn, Mn and P decreased but that of Fe increased significantly.
Authors and Affiliations
Leila Rezakhani *| Department of agriculture, Karaj Branch, Islamic Azad University, Iran. email: Leila.rezakhani@yahoo.com, Ahmad Golchin| Department of agriculture, Zanjan University, Iran., Saeed Samavat| Member of scientific board, Soil and Water Research Institute, Karaj, Iran.
Keywords
Related Articles
- EP ID EP6510
- DOI -
- Views 277
- Downloads 9
Earthquake-Resistant Strategies in Traditional Architecture of Tabriz
Tabriz, as a city located within a strategic location, northwest of Iran, has confronted many earthquakes throughout its long history. The influences of earthquakes on the old city of Tabriz are distinguished from other...
Investigating the relationship between measures of performance evaluationbased on Throughput Accounting and Cost Accounting
With the appearance of industrial revolution, emerge of large firms and separation of ownership, evaluation of managers'performance has become more important. There have been many researches. These researches try to find...
A method for the detection of two important disease of heart with PCG
Hearing of heart sounds is one of the diagnostic methods is used because of being economical nowadays. For this, analyzing the heart sounds using computerized system is of great importance. In this paper we tried to diag...
A Descriptive Study on How to Control, Prevent and Combat Pollutant Factors (A case study, Ahvaz city in Khuzestan province, Iran)
Pollution, we hear it every other day at school, college and read about it in newspapers. So what is it? Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our n...
Investigation of Effluent Microbial Quality of Wastewater Treatment Natural systems in Term of Parasitic Contamination with the Purpose of Reuse for Agricultural Irrigation – A Case Study
Microbial quality been considered as the most important characters when effluent is reused for irrigation or aquaculture. Effluent mmicrobial quality of wastewater treatment natural systems in term of parasitic contamina...