浙江农业学报 ›› 2024, Vol. 36 ›› Issue (12): 2696-2704.DOI: 10.3969/j.issn.1004-1524.20240116

• 园艺科学 • 上一篇    下一篇

叶面喷施纳米铁对菠菜生长及品质的影响

张雅茹(), 颉建明(), 张婧(), 杨旭珍, 吴志国   

  1. 甘肃农业大学 园艺学院,甘肃 兰州 730070
  • 收稿日期:2024-02-01 出版日期:2024-12-25 发布日期:2024-12-27
  • 作者简介:张雅茹(1995—),女,甘肃定西人,硕士研究生,主要从事蔬菜栽培与生理生态研究。E-mail:471310555@qq.com
  • 通讯作者: *颉建明,E-mail:xiejianming@gsau.edu.cn;
    张婧, E-mail:zj@gsau.edu.cn
  • 基金资助:
    甘肃省科技计划项目(23CXNA0037);甘肃省科技计划项目(21JR7RA821)

Effect of foliar spraying of iron nanoparticles on the growth and quality of spinach

ZHANG Yaru(), XIE Jianming(), ZHANG Jing(), YANG Xuzhen, WU Zhiguo   

  1. College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2024-02-01 Online:2024-12-25 Published:2024-12-27

摘要:

采用基质栽培,以大菠6号菠菜为试材,叶面喷施不同浓度(5、50、150、300、450 mg·L-1)的纳米零价铁(NZVI),研究纳米铁对菠菜生长、光合特性及品质的影响。结果表明,不同浓度NZVI处理均能提高菠菜的生物量、光合作用及叶片可溶性糖与维生素C含量,且随着NIVI浓度增加均呈现先升高后降低的趋势,以150 mg·L-1的增加幅度最大。与CK相比,其干重、鲜重分别提高75.73%、49.44%,净光合速率Pn、气孔导度Gs、蒸腾速率Tr,分别提高48.39%、52.34%和52.38%,根系活力提高80.21%,可溶性糖、维生素C含量分别提高42.34%、25.60%。不同浓度NZVI处理均可不同程度影响硝酸盐和草酸的含量,其中以150 mg·L-1NZVI处理降幅最大,分别为64.56%、56.86%。

关键词: 纳米零价铁, 菠菜, 生长生理, 品质

Abstract:

Using substrate cultivation, spinach variety Dabo 6 was used as the test material, and foliar spraying of nano-zero-valent iron (NZVI) at different concentrations (5, 50, 150, 300 and 450 mg·L-1) was applied to study the effects of NZVI on the growth, photosynthetic characteristics and quality of spinach. The results showed that different concentrations of NZVI treatments increased the biomass, photosynthesis and leaf soluble sugar and vitamin C content of spinach, and showed a tendency to increase and then decrease with the increase of iron nanoparticles concentration; The largest increase was with 150 mg·L-1. Compared with CK, its dry and fresh weight increased by 75.73% and 49.44%, net photosynthetic rate (Pn), stomatal conductance (Gs), and transpiration rate (Tr), increased by 48.39%, 52.34%, and 52.38%, respectively, root vigor increased by 80.21%, and the content of soluble sugar and vitamin C increased by 42.34% and 25.60%, respectively. Different concentrations of NZVI treatments were could effect the content of nitrate and oxalic acid to different degrees, with the 150 mg·L-1 NZVI treatment showing the greatest reduction of 64.56% and 56.86%, respectively.

Key words: nano-zero-valent iron (NZVI), spinach, growth physiology, quality

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