Genotypic differences of Cd uptake and distribution in radish (Raphanus sativus L.)
The genetic variability in uptake and distribution of cadmium (Cd) in 46 inbred lines of radish (Raphanus sativus L.) were investigated. The seedlings were cultivated for 10 days in nutrient solution with 50 mg L-1 CdCl2·2.5H2O. The results showed that there was significant genotypic variation existed in radish with regards to Cd concentrations. The Cd content in the roots ranged from 216.57 to 1419.20 μg g-1dry weight (DW), and the Cd content in the shoots ranged from 68.22 to 260.5 μg g-1 DW. The genotypes 6 (Nau-Hm), 28 (Nau-CW20) and 2 (Nau-Njh) with red root skin were shown to be relatively lower root Cd concentrations, and higher translocation rates from roots to shoots than those of other cultivars. This variability indicated that the development of novel elite cultivar characterized by low content of Cd in root should be feasible in the radish breeding programs.
radish (Raphanus sativus L.) genotypic difference cadmium (Cd) uptake distribution
Liwang Liu Jinlan Yang Xilin Hou Yiqin Gong Xianwen Zhu Feng Wang Cuiping Zhang Ruizhen Chu
National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Department of Plant Sciences, North Dakota State University, Fargo, ND 58105, USA
国际会议
上海
英文
4696-4699
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）