浙江农业学报 ›› 2023, Vol. 35 ›› Issue (5): 1069-1079.DOI: 10.3969/j.issn.1004-1524.2023.05.10

• 园艺科学 • 上一篇    下一篇

叶面喷施锌肥和柠檬酸对辣椒产量、品质与Cd吸收转运的影响

柴冠群1(), 周玮1, 梁红2, 范菲菲1, 朱大雁1, 范成五1,*()   

  1. 1.贵州省农业科学院 土壤肥料研究所,贵州 贵阳 550006
    2.贵州大学 农学院,贵州 贵阳 550025
  • 收稿日期:2022-05-31 出版日期:2023-05-25 发布日期:2023-06-01
  • 作者简介:柴冠群(1990—),男,山西临汾人,硕士,助理研究员,主要从事农产品产地重金属污染防控工作。E-mail:chaiguanqun@163.com
  • 通讯作者: *范成五,E-mail:18985581415@189.cn
  • 基金资助:
    贵州省科技支撑计划项目(黔科合支撑〔2018〕2338);国家重点研发计划项目(2018YFD0800602)

Effect of foliar spraying of zinc fertilizer and citric acid on yield, quality and Cd absorption and transport ation of pepper

CHAI Guanqun1(), ZHOU Wei1, LIANG Hong2, FAN Feifei1, ZHU Dayan1, FAN Chengwu1,*()   

  1. 1. Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
    2. College of Agriculture, Guizhou University, Guiyang 550025, China
  • Received:2022-05-31 Online:2023-05-25 Published:2023-06-01

摘要:

为明确ZnSO4与柠檬酸对辣椒的作用效果,以期为辣椒Cd安全生产提供理论依据,采用盆栽试验,研究叶面喷施200 μmol·L-1 ZnSO4、40 μmol·L-1 柠檬酸和二者复配对辣椒(Capsicum annuum L.)吸收转运Cd、产量与品质的影响,结果表明:与叶面喷施纯水相比,协同喷施200 μmol·L-1 ZnSO4与40 μmol·L-1 柠檬酸(Zn200+CA40)处理显著降低了辣椒果实产量、可溶性糖与氨基酸含量,可溶性蛋白含量显著增加,辣椒碱含量变化不显著。供试辣椒品种青红元帅对土壤Cd具有较强的富集能力,不同部位Cd含量为主茎上叶>根>果实>叉茎上叶>叉茎≈主茎;不同处理辣椒果实Cd含量介于0.58~0.79 mg·kg-1;与叶面喷施纯水相比,Zn200+CA40处理辣椒果实Cd含量显著(P<0.05)降低了26.58%,该处理显著降低了根净吸Cd量及其主茎上叶与叉茎上叶向果实转运Cd的效率,显著增加了根向主茎、叉茎、主茎上叶与叉茎上叶转运Cd的效率,并显著增加了辣椒地上部营养器官Cd的分配比例,尤其是主茎上叶Cd的分配比例。综上,Zn200+CA40处理果实Cd含量降低主要是由于辣椒根净吸Cd量及其主茎上叶向果实转运Cd的效率降低。

关键词: 辣椒, Cd, 吸收转运, 累积分配, 产量, 品质

Abstract:

In order to clarify the effects of ZnSO4 and citric acid on the pepper and to provide a theoretical basis for the safe production of Cd in pepper, a pot experiment was conducted to investigate effects of foliar spraying of 200 μmol·L-1 ZnSO4, 40 μmol·L-1 citric acid and the combination on the absorption and transportation of Cd in pepper, yield and quality of pepper fruit. The results showed that compared with foliar spraying of pure water, synergistic spraying of 200 μmol·L-1 ZnSO4 and 40 μmol·L-1 citric acid (Zn200+CA40) significantly reduced fruit yield, soluble sugar and amino acid contents, and increased soluble protein content, but had no significant difference in capsaicin. Pod pepper Qing Hong Yuan Shuai had a strong ability to absorb Cd from soil, Cd content in different tissues were as follows: leaf on main stem>root>fruit>leaf on fork stem>fork stem≈main stem. Content of Cd in pod pepper fruit ranged from 0.58 to 0.79 mg·kg-1. Compared with foliar spraying of pure water, the Cd content of pepper fruit treated with Zn200+CA40 was significantly reduced by 26.58%, and this treatment significantly reduced the net Cd uptake by root and its transfer efficiency of Cd from the leaf on the main stem and the leaf on the fork stem to the fruit, and significantly increased the transfer efficiency of Cd from root to main stem, fork stem, and leaf on the main stem and leaf on the fork stem, and it also significantly increased the distribution ratio of Cd in the aboveground vegetative organs of pepper, especially the distribution ratio of Cd in the leaf on the main stem. In summary, the decrease of Cd content in fruit treated with Zn200+CA40 was mainly due to the decrease of net Cd uptake by pepper root and the efficiency of Cd transport from leaf on main stem to fruit.

Key words: pepper, Cd, absorption and transportation, accumulation and distribution, yield, quality

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