浙江农业学报 ›› 2021, Vol. 33 ›› Issue (12): 2213-2223.DOI: 10.3969/j.issn.1004-1524.2021.12.01

• 作物科学 • 上一篇    下一篇

金属硫酸盐浸种对水稻种子萌发和秧苗镉吸收的影响

董爱琴1,2(), 李建国1, 杨涛1,2, 陈院华1,2, 徐昌旭1,2, 万辉3, 彭志平1, 谢杰1,2,*()   

  1. 1.江西省农业科学院 土壤肥料与资源环境研究所,农业农村部长江中下游作物生理生态与耕作重点实验室,国家红壤改良工程技术研究中心,江西 南昌 330200
    2.井冈山红壤研究所,江西 吉安 343016
    3.南昌市农产品质量安全检测中心,江西 南昌 330009
  • 收稿日期:2021-05-08 出版日期:2021-12-25 发布日期:2022-01-10
  • 通讯作者: 谢杰
  • 作者简介:* 谢杰,E-mail:jerous. xie@outlook.com
    董爱琴(1983—),女,河南开封人,硕士,实验师,主要从事受污染耕地安全利用研究。E-mail: aiqin.dong@outlook.com
  • 基金资助:
    江西省重点研发计划(20203BBFL63071);江西省现代农业科研协同创新专项(JXXTCXBSJJ004);江西省现代农业科研协同创新专项(JXXTCX201904);国家红壤改良工程技术研究中心开放基金(2020NETRCRSI-14)

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

摘要:

为了解金属硫酸盐浸种对水稻种子萌发和秧苗吸收Cd等元素的影响,以水稻品种五丰优286为试验材料,选择多种浓度的硫酸亚铁(FeSO4)、硫酸锌(ZnSO4)和硫酸锰(MnSO4)作为浸种剂进行室内催芽和水培试验,测定水稻胚根长、胚芽长、发芽率,以及秧苗中的Cd、Mg、B、P、K含量。结果显示,FeSO4和MnSO4浸种均可提高水稻的发芽率,促进胚根和胚芽生长,且能有效降低秧苗中的Cd含量;而ZnSO4浸种对水稻胚根和胚芽的生长表现出明显的抑制作用,且会增加秧苗中的Cd含量。FeSO4和MnSO4浸种对水稻秧苗Mg、B、P、K的吸收无明显抑制作用,且FeSO4浸种对秧苗B的吸收有促进作用。总的来看,FeSO4和MnSO4浸种具有较好的降低水稻Cd吸收的应用潜力,值得进一步深入研究。

关键词: 浸种剂, 离子通道, 发芽率, 镉, 养分吸收

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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