We tested the growth and physiological responses of three poplar clones [Populus deltoides Bartr. ex Marsh. 'Bora', 'PE 19/66'; Populus × euramericana (Dode) Guinier 'Pannonia'] grown for 3 years on soils artificially contaminated with heavy metals, diesel fuel, and herbicides at the Experimental Estate of the Institute of Lowland Forestry and Environment (ILFE), University of Novi Sad, Serbia. Within three field blocks, clonal whole-plots were divided into seven subplots containing a non-contaminated control and six artificially-contaminated soil treatments: (1) 10.6 kg Cd ha-1, (2) 247 kg Cu ha-1, (3) 183.3 kg Ni ha-1, (4) 6,667 L diesel fuel ha-1, (5) 236 g Oxyfluorfen ha-1, and (6) 1,320 g Pendimethalin ha-1. Significant clone × treatment interactions governed growth and physiology throughout the study (p < 0.05), and the influence of inorganics versus organics varied with tree age. Heavy metals had a more substantial influence on growth and physiology as the trees matured, while diesel and herbicide treatments were most pronounced during the first growing season (p < 0.0001). Clones 'Bora' and 'PE 19/66' exhibited greater biomass than 'Pannonia', with trees growing in the control soils exhibiting 13.8 and 19.6 times greater biomass than 'Pannonia', respectively.

中文翻译：

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在被重金属，柴油和除草剂人工污染的土壤上生长的三个杨树无性系的生长和生理响应。

我们测试了三个杨树无性系[Populus deltoides Bartr。前沼泽。'Bora'，'PE 19/66'; 塞尔维亚诺维萨德大学低地森林与环境研究所（ILFE）在被重金属，柴油和除草剂人工污染的土壤上生长了3年的美洲杨（Doude）Guinier'Pannonia'] 。在三个野外区块中，将克隆全图分为七个子图，分别包含一个未污染的对照和六个人工污染的土壤处理方法：（1）10.6 kg Cd ha-1，（2）247 kg Cu ha-1，（3 ）183.3公斤Ni ha-1，（4）6,667升柴油ha-1，（5）236克对氟苯甲醛ha-1和（6）1,320克二甲戊灵ha-1。在整个研究过程中，重要的克隆×治疗相互作用决定了生长和生理（p <0.05），无机物对有机物的影响随树龄的变化而变化。随着树木的成熟，重金属对生长和生理的影响更大，而在第一个生长季节，柴油和除草剂处理最为明显（p <0.0001）。克隆'Bora'和'PE 19/66'的生物量要比'Pannonia'大，而在对照土壤中生长的树木的生物量分别是'Pannonia'的13.8和19.6倍。