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EN
The allelopathic potential of classical energy crops (Panicum virgatum L., Sorghum saccharatum (L.) Moench, hybrids 'Zubr' and 'Medovyi') was studied by the energy of germination of biotesters' seeds and their biometric parameters, as well as the selection of sensitive biotesters and test traits. Secale cereale L. and Raphanus sativus L. var. radicula Pers. were used as biotesters. The selectivity of secretions action has been proven – the aqueous extracts from the same energy plant caused different reactions in acceptor plants. The obtained results indirectly indicate the allelopathic potential of energy crops P. virgatum and S. saccharatum. A decrease in the germination energy of the biotester R. sativus var. radicula seeds as well as reduction of underground and aboveground parts of both R. sativus var. radicula and S. cereale were observed under the effect of aqueous extracts of studied energy crops. In order to confirm an allelopathic potential of energy crops, using multiple test signs of different biotesters is suggested.
EN
In the present investigation was carried out to find out the impact of Triadimefon (TDM) and hexaconazole (HEX) triazole fungicides on the leaf anatomy of Radish (Raphanus sativus L.) The plant was treated with one litre of aqueous solution containing 20 mg-1 triadimefon (TDM) and 20mg-1 hexaconazole (HEX) on 23,35 and 53, days after sowing (DAS) by soil drenching. The plants were harvested on 30, 45 and 60 days after sowing. The total leaf area, thickness of leaf, number of stomata in lower epidermis, stomatal pore length and width were observed in both control and treatments. Leaves treated with TDM and HEX showed several variations in the anatomical characteristics when compared to the leaves of the untreated control plant of Raphanus sativus.
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