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中国农学通报

中国农学通报 ›› 2024, Vol. 40 ›› Issue (27): 121-125.doi: 10.11924/j.issn.1000-6850.casb2024-0071

• 植物保护·农药 • 上一篇    下一篇

外源硒对水稻生长及白背飞虱存活的影响

郑金艳1(), 孙乾阳1, 张宁1, 刘峰2, 韩永强1,3()   

  1. 1 宜春学院生命科学与资源环境学院/江西省作物生长发育调控重点实验室，江西宜春 336000
    2 江西省乐安县气象局，江西乐安 344399
    3 江西省高等学校硒农业工程技术研究中心，江西宜春 336000
  • 收稿日期:2024-01-24 修回日期:2024-05-11 出版日期:2024-09-24 发布日期:2024-09-24
  • 通讯作者:
    韩永强，男，1983年出生，内蒙古呼和浩特人，副教授，博士，主要从事水稻害虫综合治理研究。通信地址：336000 江西省宜春市学府路576号，E-mail：。
  • 作者简介:

    郑金艳，女，2003年出生，江西赣州人，本科，主要从事昆虫生态学研究。通信地址：336000 江西省宜春市学府路576号，E-mail：。

  • 基金资助:
    国家自然科学基金“水杨酸调控胼胝质代谢在硅介导水稻抗褐飞虱中的作用机制”(32260675); 江西省教育厅科学技术研究项目“施硅调控水稻-褐飞虱-天敌三级营养的生态学机制”(GJJ190843)

Effects of Exogenous Selenium on Rice Growth and Survival of Sogatella furcifera (Hemiptera: Delphacidae)

ZHENG Jinyan1(), SUN Qianyang1, ZHANG Ning1, LIU Feng2, HAN Yongqiang1,3()   

  1. 1 Key Laboratory of Crop Growth and Development Regulation of Jiangxi Province/ College of Life Sciences and Resource Environment, Yichun University, Yichun, Jiangxi 336000
    2 Le'an County Meteorological Bureau, Le'an, Jiangxi 344399
    3 Jiangxi University Selenium Agricultural Engineering Technology Research Center, Yichun, Jiangxi 336000
  • Received:2024-01-24 Revised:2024-05-11 Published:2024-09-24 Online:2024-09-24

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摘要：

本研究旨在探讨外源硒对水稻生长及白背飞虱存活的影响。以感虫品种‘台中1号’为供试水稻品种，采用营养液添加亚硒酸钠(Na2SeO3)的方法设置10、20、30、40、50、60 μmol/L 6个硒浓度处理，以0 μmol/L为对照，测定不同浓度硒对水稻生长及取食硒处理水稻对白背飞虱存活的影响。结果表明，10 μmol/L硒处理水稻株高、根长、单株鲜重和单株干重均显著高于对照；而20~60 μmol/L硒处理的株高、根长、单株鲜重和单株干重均低于对照；水稻硒含量随硒添加浓度增大显著升高；白背飞虱存活率随水稻硒含量增大显著降低；取食10 μmol/L硒处理水稻第4~7天，白背飞虱存活率显著降低。综上说明，10 μmol/L为硒的适宜浓度，既能促进水稻生长，也能降低白背飞虱存活率。

关键词: 外源硒, 水稻, 生长, 白背飞虱, 存活

Abstract:

To explore the effects of exogenous selenium (Se) on rice growth and survival of Sogatella furcifera feeding on Se-treated rice plants, a susceptible cultivar 'Taichung Native 1' (TN1) was served as the test rice variety. Six Se concentrations of 10, 20, 30, 40, 50 and 60 μmol/L were set up by adding sodium selenite (Na2SeO3) to the nutrient solution, and 0 μmol/L was used as the control to determine the effects of different concentrations of Se on rice growth and the survival of S. furcifera feeding on Se-treated rice plants. The results indicated that the plant height, root length, fresh weight and dry weight per plant treated with 10 μmol/L Se were significantly higher than that of control; while the plant height, root length, fresh weight and dry weight per plant treated with 20-60 μmol/L Se were lower than that of control. Se content in rice plants were increased significantly with the increase of Se concentration in nutrient solution, while survival rate of S. furcifera were decreased significantly with the increase of Se content in rice plants. The survival rate of S. furcifera fedding on rice plants treated with 10 μmol/L Se decreased significantly on the 4th to 7th day after the treatment. In conclusion, 10 μmol/L is the appropriate concentration of Se, which can promote rice growth and reduce the survival rate of S. furcifera.

Key words: exogenous selenium, rice, growth, Sogatella furcifera, survival