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In laboratory tests, the influence of allelopathic substances present in the soil under Lolium perenne on seed germination and its initial growth and development as well as that of Phleum pratense and Poa pratensis, was evaluated. Results of bioassays point that water extracts from the soil under Lolium perenne sward inhibited the germination of seeds of tested grass species as well as clearly modified...
The studies were carried out in laboratory conditions. Poa pratensis root exudates were obtained in the CRETS (continuous root exudate trapping system) and then in glass platter experiment was determined their biological activity in biotest on seed germination, length of roots and height of Phleum pratense seedlings. In the experiment were used the following concentrations of Poa pratensis root exudates:...
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