Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (12): 2213-2223.DOI: 10.3969/j.issn.1004-1524.2021.12.01

• Crop Science • Previous Articles     Next Articles

Effects of different sulfate soaking agents on seed germination and cadmium uptake of rice seedlings

DONG Aiqin1,2(), LI Jianguo1, YANG Tao1,2, CHEN Yuanhua1,2, XU Changxu1,2, WAN Hui3, PENG Zhiping1, XIE Jie1,2,*()   

  1. 1. Key Laboratory of Crop Ecophysiology and Farming System for the Middle and Lower Reaches of the Yangtze River,Ministry of Agriculture and Rural Affairs, National Engineering and Technology Research Center for Red Soil Improvement, Institute of Soil and Fertilizer & Environmental and Resources, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
    2. Jinggangshan Institute of Red Soil, Ji’an 343016, China
    3. Nanchang Agricultural Products Quality and Safety Testing Center, Nanchang 330009, China
  • Received:2021-05-08 Online:2021-12-25 Published:2022-01-10
  • Contact: XIE Jie

Abstract:

To study the effects of sulfate soaking on seed germination and cadmium (Cd) uptake of rice seedlings, rice variety Wufengyou 286 was selected as the test material, and FeSO4, ZnSO4, MnSO4 solutions with various concentrations were used as seed soaking agents in the sprouting and hydroponic experiment. The radicle length, plumule length, germination rate and contents of Cd, Mg, B, P, K in rice seedlings were determined. It was shown that the seed soaking with FeSO4 or MnSO4 solution could increase the germination rate of rice, promote the growth of radicle and plumule, and effectively reduce Cd content of rice seedlings. However, the seed soaking with ZnSO4 solution inhibited the growth of radicle and plumule, and increased Cd content of rice seedlings. The seed soaking with FeSO4 or MnSO4solution had no obvious inhibition on the uptake of Mg, B, P, K, and the seed soaking with FeSO4 solution even could promote B uptake of rice seedlings. In general, the seed soaking with FeSO4or MnSO4 solution had application potential for reducing Cd uptake of rice, and was worthy for further research.

Key words: seed soaking agent, ion channel, germination rate, cadmium, nutrient uptake

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