Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (22): 76-83.doi: 10.11924/j.issn.1000-6850.casb15120167

Special Issue: 园艺

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Distribution and Enrichment Regularity of Cadmium of Different Mulberry Varieties

Jiang Shimeng, Yan Xinpei, Gong Xin, Huang Renzhi, Jia Chaohua, Long Tangzhong, Jiang Yongbing, Qin Zhixiong, Luo Jun   

  1. (The Sericultural Research Institute of Hunan Province, Changsha 410127)
  • Received:2015-12-30 Revised:2016-01-27 Accepted:2016-02-25 Online:2016-08-09 Published:2016-08-09

Abstract: In order to identify the distribution and enrichment regularity of cadmium among different mulberry varieties, ‘Nongsang 14’, ‘Qiangsang 1’ and ‘Yuesang 11’ were planted on cadmium-excessive farmlands with the density of 15000, 30000 and 45000 plants/hm2. According to the results of sample testing and statistical analysis, about 50% of the cadmium absorbed from the soil was distributed in mulberry root, followed by that in branches, stems and leaves, respectively. The cadmium distribution in the sampling parts (except for the leaves) was significantly affected by the mulberry variety, planting density and their interaction. ‘Yuesang 11’ planted on the farmland with cadmium concentration of 2.93 mg/kg and planting density of 15000 plants/hm2 had the strongest enrichment capability. In addition, the cadmium enrichment coefficient (EC) of mulberry was 0.107, and the cadmium transfer factor (TF) of mulberry was 0.243, both were insusceptible to the mulberry variety, planting density and their interaction.