The environmental benefits of agroforestry systems are well known. However, current knowledge of potential allelopathic interactions is inadequate. The decrease in soil fertility, the increasingly rhapsodic distribution of precipitation, and the special metabolism and cultivation of medicinal and aromatic plants are all harbingers of medicinal-agroforestry systems. The authors aimed to discover the allelopathic effects of Juglans regia L. and Populus tremula L. on germination of medicinal and aromatic plants cultivated in a temperate zone. Accordingly, an in vitro germination trial was conducted with leachates of these trees and two juglone concentrations. These allelopathic effects were evaluated for germination vigour, germination rate, and total fresh weight of seedlings of twelve different species. A pronounced species specificity was observed in tolerance of seeds and seedlings to the allelopathic effect of Populus and Juglans. In four of the species studied, the allelopathic effect may inhibit germination, but only initially. Poppy and angelica proved to be the most sensitive to the treatments. The following species had relative tolerance to the allelochemicals, so further research under natural conditions is suggested for: Althea officinalis L. (9.34 ± 5.04–68.66 ± 13.62 GR%), Anethum graveolens L. (12.00 ± 2.00–100.00 ± 6.12 GR%), Cannabis sativa L. (72.66 ± 9.02–91.34 ± 1.16 GR%), Dracocephalum moldavica L. (38.00 ± 2.00–80.00 ± 17.44 GR%), Linum usitatissimum L. (44.66 ± 2.00–58.00 ± 3.46 GR%), and Satureja hortensis L. (52.00 ± 28.22–82.00 ± 8.00 GR%). The aim would be to introduce them into agroforestry systems.

农林业系统的环境效益是众所周知的。但是，有关潜在的化感相互作用的当前知识是不足的。土壤肥力的下降，降水的不断增加的分布以及药用和芳香植物的特殊代谢和栽培都是药用农林业系统的先驱。作者的目的是发现胡桃木和胡杨的化感作用。L.关于在温带地区种植的药用和芳香植物的发芽的信息。因此，对这些树的浸出液和两种浓度的胡胶进行了体外发芽试验。通过化感作用评估了十二种不同物种的幼苗的发芽势，发芽率和总鲜重。在种子和幼苗对杨和胡桃的化感作用的耐受性中观察到明显的物种特异性。在所研究的四个物种中，化感作用可能会抑制发芽，但仅限于初期。罂粟和当归被证明对治疗最敏感。以下物种对化感物质具有相对耐受性，因此建议在自然条件下作进一步研究：Althea of​​ficinalis L.（9.34±5.04–68.66±13.62 GR％），graveolens L.（12.00±2.00–100.00±6.12 GR％），sativa L.（72.66±9.02–91.34±1.16 GR％），Dracocephalum Moldavica L.（38.00±2.00–80.00±17.44 GR％），Linum usitatissimum L.（44.66±2.00–58.00±3.46 GR％）和Satureja hortensis L.（52.00±28.22–82.00±8.00 GR％）。目的是将它们引入农林业系统。