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| Relationship between arsenic, cadmium, and phosphorous concentrations in different parts of wheat straw, wheat plant height and grain arsenic, cadmium, and phosphorous concentrations |
| Received:August 12, 2016 |
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| KeyWord:arsenic;cadmium;wheat;plant height;correlation |
| Author Name | Affiliation | E-mail | | SHI Gao-ling | Jiangsu Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China | | | MA Hong-xiang | Jiangsu Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China | | | LOU Lai-qing | College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China | | | CAI Qing-sheng | College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China | qscai@njau.edu.cn |
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| Abstract: |
| The differences in the upper-most internode length and plant height among 12 wheat cultivars and their relationship with grain arsenic(As),cadmium(Cd) and phosphorous(P) concentrations in soil "naturally" contaminated with both As and Cd were investigated by using pot experiments. The differences in As,Cd,and P accumulation in different parts of wheat straw and their relationship with grain As,Cd and P concentrations in 6 wheat cultivars were also investigated. The results showed that the plant height and upper-most internode length were significant differences among the 12 wheat cultivars. As,Cd,and P concentrations in wheat straw were significant differences among different cultivars and different parts of wheat straw.Grain As concentration was positively correlated with husk and rachis As concentrations,the correlation coefficients were 0.659(P<0.01) and 0.433(P<0.05),respectively. Grain Cd and P concentrations were negatively correlated with plant height and upper-most internode length,the correlation coefficients were -0.264(P<0.05) and -0.345(P<0.01) for Cd,-0.583(P<0.01) and -0.437(P<0.01) for P,respectively. Grain P concentration was positively correlated with husk,rachis and internode P concentrations. Both As and Cd concentrations in wheat grain were significantly correlated to P concentration in wheat husk and rachis. These results indicated that plant height may be a potential selection criterion for breeding low Cd wheat cultivar. Arsenic concentrations in wheat husk and rachis can be used as indexes of As level in the grain. |
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