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You are here: Home » Latest Issue » Volume 15, 2020 - Number 2 » EFFECT OF DIFFERENT WATER SOURCES AND WATER AVAILABILITY REGIMES ON HEAVY METAL ACCUMULATION IN TWO SUNFLOWER SPECIES, Carpathian Journal of Earth and Environmental Sciences, August 2020, Vol. 15, No. 2, p. 289 - 300; Doi:10.26471/cjees/2020/015/129


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Abdulkadir SURUCU1,*, Arsalan Azeez MARIF2, Salih Najib MAJID3, Shahid FAROOQ4,5,* & Nawroz Abdul-Razzak TAHIR6
1Department of Soil Science & Plant Nutrition, Faculty of Agriculture, Harran University, Şanlıurfa, Turkey
2Horticulture & Landscape Design Department, Bakrajo Technical Institute, Sulaimani Polytechnic University, Iraq
3Soil and Water Science Department, College of Agricultural Sciences Engineering, University of Sulaimani, Iraq
4Department of Plant Protection, Harran University, Şanlıurfa, Turkey
5Department of Agronomy, Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan
6Horticulture Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, Iraq
*Corresponding authors’ email: akadir63@yahoo.com (A Surucu) csfa2006@gmail.com (S Farooq)


EFFECT OF DIFFERENT WATER SOURCES AND WATER AVAILABILITY REGIMES ON HEAVY METAL ACCUMULATION IN TWO SUNFLOWER SPECIES, Carpathian Journal of Earth and Environmental Sciences, August 2020, Vol. 15, No. 2, p. 289 - 300; Doi:10.26471/cjees/2020/015/129

Full text

Abstract:

Sunflowers are considered as hyper-accumulators of heavy metals and can be used in the phytoremediation of heavy metal contaminated soils. Wastewater is a valuable irrigation source in peri-urban and urban areas. However, it is contaminated with numerous heavy metals, which can be accumulated and translocated to different plant parts. Unfortunately, limited studies have assessed the accumulation and translocation of heavy metals in ornamental sunflower species. Therefore, the current study was conducted to infer the effects of different water sources (normal and wastewater) and water availability regimes (60% and 35% wetted soil) on the growth and heavy metal (zinc, manganese and chromium) accumulation in two sunflower species (cultivated and ornamental). The cultivated (Helianthus annuus L.) and ornamental (Helianthus giganteus L.) sunflower species were grown in pots and irrigated with normal and wastewater. Furthermore, the pots were maintained at two different water availability regimes (i.e., 60% and 35% wetted soil). Different growth traits such as root, shoot and total biomass, and achene weight were recorded. Furthermore, accumulation of zinc (Zn), manganese (Mn) and chromium (Cr) was noted in the roots, shoots and achenes of both species. Residual concentration of these metals in the soil was also assessed after the harvest of plants. Nonetheless, bioaccumulation and translocation factors of all metals were computed. The species, water sources and water availability regimes significantly differed for growth traits, heavy metals’ accumulation and bioaccumulation and translocation factors. Higher concentration of heavy metals in different plant parts were noted with normal water indicating that the metals were transported from soil rather than wastewater. Nonetheless, ornamental sunflower exhibited significant potential for the phytoremediation of Mn and Cr; thus, it should be explored further with in-depth studies.



Keyword: Sunflowers, wastewater, water availability, heavy metal accumulation,


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