title: [Effects of irrigation with mine wastewater on physiological characters and heavy metals accumulation of winter wheat].
abstract: A pot experiment was conducted to study the effects of irrigation with mine wastewater on the physiological characters and heavy metals accumulation of winter wheat. Three treatments were installed, i. e., irrigation with coal-washing wastewater (T1), irrigation with coal-washing wastewater after its precipitation (T2), and irrigation with coal gangue leacheate (T3), taking the well water irrigation as the control (CK). The plants were irrigated with mine wastewater after the turning green stage. Irrigation with mine wastewater had negative effects on the winter wheat growth and grain yield. At anthesis stage, the leaf area, dry mass per stem, root activity, and net photosynthetic rate of winter wheat in treatments T1, T2, and T3 were significantly lower than those in CK (P < 0.05), the plant height and leaf chlorophyll content in T3 decreased significantly (P < 0.05), and the grain yield in T1, T2 and T3 was decreased by 15.4%, 9.8%, and 17.8%, respectively. In addition, the heavy metals (Cr, Pb, Cu and Zn) contents in the grain of winter wheat under mine wastewater irrigation were significantly higher than those in CK, suggesting that the irrigation with mine wastewater could result in the heavy metals accumulation in wheat grain.
authors.affiliation: Key Laboratory of Mine Spatial Information Technologies of SBSM, School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China. mashouchen@126.com
authors.forename: Shou-Chen
authors.initials: SC
authors.lastname: Ma
authors.affiliation: College of Life Science, Henan Normal University, Xinxiang 453007, Henan, China.
authors.forename: Shou-Tian
authors.initials: ST
authors.lastname: Ma
authors.affiliation: College of Life Science, Henan Normal University, Xinxiang 453007, Henan, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Shao
authors.affiliation: College of Life Science, Henan Normal University, Xinxiang 453007, Henan, China.
authors.forename: Li-Na
authors.initials: LN
authors.lastname: Jiang
authors.affiliation: College of Life Science, Henan Normal University, Xinxiang 453007, Henan, China.
authors.forename: Chun-Xi
authors.initials: CX
authors.lastname: Li
mesh_terms: D057914:Agricultural Irrigation / Q000379:methods*; D002681:China; D005506:Food Contamination / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D008906:Mining; D012621:Seasons; D012639:Seeds / Q000737:chemistry; D014908:Triticum / Q000737:chemistry* / Q000254:growth & development*; D062065:Wastewater / Q000737:chemistry*
chemical_list: D019216:Metals, Heavy; D062065:Wastewater