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Journal of Chemistry
Volume 2017 (2017), Article ID 1405878, 9 pages
https://doi.org/10.1155/2017/1405878
Research Article

Cadmium Uptake and Distribution in Fragrant Rice Genotypes and Related Consequences on Yield and Grain Quality Traits

1Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
2Rokupr Agricultural Research Centre (RARC), Sierra Leone Agricultural Research Institute (SLARI), PMB 1313, Freetown, Sierra Leone
3Department of Environmental Science and Engineering, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
4Magbosi Land, Water and Environment Research Centre (MLWERC), Sierra Leone Agricultural Research Institute (SLARI), PMB 1313, Freetown, Sierra Leone

Correspondence should be addressed to Xiangru Tang; nc.ude.uacs@rxgnat

Received 11 December 2016; Revised 18 March 2017; Accepted 4 April 2017; Published 29 May 2017

Academic Editor: Abdul Khaliq

Copyright © 2017 Adam Sheka Kanu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cadmium (Cd) toxicity has varying consequences on plants growth and development. This research focused on examining the influence of Cd toxicity on fragrant rice genotypes and its consequences on yield, yield related parameters, and grain quality traits. Randomized complete block design comprising five different fragrant rice cultivars (Meixiangzhan 2, Xiangyaxiangzhan, Guixiangzhan, Basmati, and Nongxiang 18) and four Cd levels (0, 50, 100, and 150 mg/kg soil) was used. The results showed that, with increased levels of soil Cd toxicity, Cd uptake in roots and distribution to other organs increased in dose dependent manner. Uptake and accumulation were higher in roots than in shoots with the highest uptake in both roots and shoots observed in Meixiangzhan 2, followed by Nongxiang 18, Basmati, Xiangyaxiangzhan, and Guixiangzhan cultivars. With increased Cd toxicity, yield and yield parameters were affected in all cultivars. Grain quality was also found affected under Cd stress condition. The results suggested that soil Cd toxicity has negative consequences on rice performance and uptake varies among cultivars. Conclusively, Cd toxicity impaired rice yield formation and grain quality by altering yield components (panicles number, spikelet per panicles, and spikelet setting (%)); however, Guixiangzhan variety performed better, while Meixiangzhan 2 performed less in terms of minimum Cd uptake and distribution to grains, yield, and grain quality reduction under Cd stress condition.