Tags

Type your tag names separated by a space and hit enter

Effects of growing seasons and genotypes on the accumulation of cadmium and mineral nutrients in rice grown in cadmium contaminated soil.
Sci Total Environ. 2017 Feb 01; 579:1282-1288.ST

Abstract

Heavy metals naturally occur in soil but their concentrations may be changed by seasonal rainfall under double-rice cropping system. The field trials at three sites, which represent low, medium and high cadmium (Cd) content in soil, revealed significant genotypic and environmental variations in grain Cd concentrations. Most cultivars in late rice at three sites produced grains with Cd content over the maximum permissible concentration (MPC) 0.20mgkg-1. However, grain Cd content in early rice was over MPC only at high Cd site. When planted at same site, late rice showed remarkably higher content of Cd as well as K, Mg, Fe and Mn than that in early rice in both grains and rachises. Content of Ni, Pb and Cr was generally in the safe range and it was determined by the interactions between genotypes and environmental factors. Element concentrations in rachises were about 2-10 times higher than those in grains, depending on element species, cultivars, locations and seasons. Low-Cd-accumulation cultivars generally displayed both lower Cd content in rachis and lower Cd transportation ratio from rachises to grains than those of high-Cd-accumulation cultivars. There was a significant and positive correlation between Cd and Mn concentrations in grains. The most important factor that causes great variation in Cd accumulation in rachises and grains between early and later rice is water contents and levels in paddy soils mainly caused by different rainfall amount. Inhibiting Cd accumulation in rachises and Cd transportation from rachises to grains could efficiently decrease Cd content in rice grains produced in contaminated soil.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Liu Y
Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China; College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin, 300384, China.
Zhang C
Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China.
Zhao Y
Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China.
Sun S
College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin, 300384, China.
Liu Z
Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China. Electronic address: liuzhongqi508@163.com.

MeSH

CadmiumGenotypeMineralsOryzaSeasonsSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27908623

Citation

Liu, Yang, et al. "Effects of Growing Seasons and Genotypes On the Accumulation of Cadmium and Mineral Nutrients in Rice Grown in Cadmium Contaminated Soil." The Science of the Total Environment, vol. 579, 2017, pp. 1282-1288.
Liu Y, Zhang C, Zhao Y, et al. Effects of growing seasons and genotypes on the accumulation of cadmium and mineral nutrients in rice grown in cadmium contaminated soil. Sci Total Environ. 2017;579:1282-1288.
Liu, Y., Zhang, C., Zhao, Y., Sun, S., & Liu, Z. (2017). Effects of growing seasons and genotypes on the accumulation of cadmium and mineral nutrients in rice grown in cadmium contaminated soil. The Science of the Total Environment, 579, 1282-1288. https://doi.org/10.1016/j.scitotenv.2016.11.115
Liu Y, et al. Effects of Growing Seasons and Genotypes On the Accumulation of Cadmium and Mineral Nutrients in Rice Grown in Cadmium Contaminated Soil. Sci Total Environ. 2017 Feb 1;579:1282-1288. PubMed PMID: 27908623.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of growing seasons and genotypes on the accumulation of cadmium and mineral nutrients in rice grown in cadmium contaminated soil. AU - Liu,Yang, AU - Zhang,Changbo, AU - Zhao,Yanling, AU - Sun,Shoujun, AU - Liu,Zhongqi, Y1 - 2016/11/29/ PY - 2016/06/12/received PY - 2016/11/17/revised PY - 2016/11/17/accepted PY - 2016/12/3/pubmed PY - 2018/3/24/medline PY - 2016/12/3/entrez KW - Cadmium KW - Double-rice cropping KW - Manganese KW - Rachis KW - Rice SP - 1282 EP - 1288 JF - The Science of the total environment JO - Sci Total Environ VL - 579 N2 - Heavy metals naturally occur in soil but their concentrations may be changed by seasonal rainfall under double-rice cropping system. The field trials at three sites, which represent low, medium and high cadmium (Cd) content in soil, revealed significant genotypic and environmental variations in grain Cd concentrations. Most cultivars in late rice at three sites produced grains with Cd content over the maximum permissible concentration (MPC) 0.20mgkg-1. However, grain Cd content in early rice was over MPC only at high Cd site. When planted at same site, late rice showed remarkably higher content of Cd as well as K, Mg, Fe and Mn than that in early rice in both grains and rachises. Content of Ni, Pb and Cr was generally in the safe range and it was determined by the interactions between genotypes and environmental factors. Element concentrations in rachises were about 2-10 times higher than those in grains, depending on element species, cultivars, locations and seasons. Low-Cd-accumulation cultivars generally displayed both lower Cd content in rachis and lower Cd transportation ratio from rachises to grains than those of high-Cd-accumulation cultivars. There was a significant and positive correlation between Cd and Mn concentrations in grains. The most important factor that causes great variation in Cd accumulation in rachises and grains between early and later rice is water contents and levels in paddy soils mainly caused by different rainfall amount. Inhibiting Cd accumulation in rachises and Cd transportation from rachises to grains could efficiently decrease Cd content in rice grains produced in contaminated soil. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/27908623/Effects_of_growing_seasons_and_genotypes_on_the_accumulation_of_cadmium_and_mineral_nutrients_in_rice_grown_in_cadmium_contaminated_soil_ DB - PRIME DP - Unbound Medicine ER -