Accumulation of trace elements, including heavy metals, were evaluated in soil and fruits of chilli plants (Capsicum annuum L.) grown under both laboratory-controlled and semi-controlled greenhouse location conditions. Chilli plant biomass growth in different development stages and fruit productivity were evaluated and compared with each other for the impact of growth boundary conditions and water quality effects. Treated synthetic greywaters by different operational design set-ups of floating treatment wetland systems were recycled for watering chillies in both locations. Effluents of each individual group of treatment set-up systems were labelled to feed sets of three replicates of chilli plants in both locations. Results revealed that the treated synthetic greywater (SGW) complied with thresholds for irrigation water, except for high concentrations (HC) of phosphates, total suspended soils, and some trace elements, such as cadmium. Chilli plants grew in both locations with different growth patterns in each development stage. First blooming and high counts of flowers were observed in the laboratory. Higher fruit production was noted for greenhouse plants: 2266 chilli fruits with a total weight of 16.824 kg with an expected market value of GBP 176.22 compared to 858 chilli fruits from the laboratory with a weight of 3.869 kg and an estimated price of GBP 17.61. However, trace element concentrations were detected in chilli fruits with the ranking order of occurrence as: Mg > Ca > Na > Fe > Zn > Al > Mn > Cu > Cd > Cr > Ni > B. The highest concentrations of accumulated Cd (3.82 mg/kg), Cu (0.56 mg/kg), and Na (0.56 mg/kg) were recorded in chilli fruits from the laboratory, while greater accumulations of Ca, Cd, Cu, Mn, and Ni with concentrations of 4.73, 1.30, 0.20, 0.21, and 0.24 mg/kg, respectively, were linked to fruits from the greenhouse. Trace elements in chilli plant soils followed the trend: Mg > Fe > Al > Cr > Mn > Cd > Cu > B. The accumulated concentrations in either chilli fruits or the soil were above the maximum permissible thresholds, indicating the need for water quality improvements.

中文翻译：

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漂浮湿地系统处理的中水灌溉控制和半控制环境中生长的辣椒的评价

研究人员评估了辣椒植物 ( Capsicum annuum) 的土壤和果实中微量元素的积累，包括重金属L.) 在实验室控制和半控制的温室位置条件下生长。对不同发育阶段辣椒植物生物量生长和果实生产力进行了评价，并比较了生长边界条件和水质效应的影响。通过浮动处理湿地系统的不同操作设计设置处理过的合成灰水被回收用于两个地点的辣椒浇水。每组处理设置系统的流出物都被标记为在两个位置为三个重复的辣椒植物进料。结果显示，处理后的合成灰水 (SGW) 符合灌溉水的阈值，但高浓度 (HC) 的磷酸盐、总悬浮土壤和一些微量元素（如镉）除外。辣椒植物在这两个地方生长，在每个发育阶段都有不同的生长模式。在实验室中观察到了第一次开花和大量的花朵。温室植物的果实产量更高：2266 个辣椒果实，总重量为 16.824 公斤，预期市场价值为 176.22 英镑，而实验室生产的 858 个辣椒果实重量为 3.869 公斤，估计价格为 17.61 英镑。然而，在辣椒果实中检测到微量元素浓度的发生顺序为：Mg > Ca > Na > Fe > Zn > Al > Mn > Cu > Cd > Cr > Ni > B。累积 Cd 的最高浓度（3.82 mg/kg)、Cu (0.56 mg/kg) 和 Na (0.56 mg/kg) 在实验室的辣椒果实中被记录，而 Ca、Cd、Cu、Mn、和 Ni 浓度分别为 4.73、1.30、0.20、0.21 和 0.24 mg/kg，与温室果实有关。辣椒植物土壤中的微量元素遵循以下趋势：Mg > Fe > Al > Cr > Mn > Cd > Cu > B。辣椒果实或土壤中的累积浓度高于最大允许阈值，表明需要改善水质.