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Kornhuber, J., Quack, G., Danysz, W., Jellinger, K., Danielczyk, W., Gsell, W., Riederer, P. (1995) Therapeutic brain concentration of the NMDA receptor antagonist amantadine. Neuropharmacology. 34 , 713

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473 497 Obata, H., Umebayashi, M. (1999) Effects of cadmium on mineral nutrient concentrations in plants differing in tolerance for cadmium. J. Plant Nutr. 20, 97

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Acta Biologica Hungarica
Authors: Henryk Dębski, Magdalena Szwed, WiesŁaw Wiczkowski, Dorota Szawara-Nowak, Natalia Bączek, and Marcin Horbowicz

. , Noga , G. , Hunsche , M. ( 2015 ) Concentration of hinokinin, phenolic acids and flavonols in leaves and stems of Hydrocotyle leucocephala is differently influenced by PAR and ecologically relevant UV-B level . J. Plant Physiol. 173 , 105 – 115

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. Benzian , B. , Darby , R.J. , Lane , P. , Widdowson , F.V. , Verstreten , L.M.J. 1983 . Relationship between N concentration of grain and grain yield in recent winter-wheat experiments in England and Belgium, some with large yields

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., Velegraki, A., Verweij, P. (2007) Method for the determination of broth dilution minimum inhibitory concentrations of antifungal agents for conidia forming moulds. EUCAST Discussion Document . European Committee on Antimicrobial Susceptibility Testing

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. Ponder , F. and Tadros , S. H. ( 1985 ): Juglone concentration in soil beneath black walnut interplanted with nitrogen-fixing species . J. Chem. Ecol. 11 , 937 – 942

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., Heiman, M. L., Kriauciunas, A., Stephens, T. W., Nyce, M. R., Ohannesian, J. P., Marco, C. C., McKee, L. J., Bauer, T. L., José, F., Caro, J. F. (1996) Serum immunoreactive-Leptin concentrations in normal-weight and obese humans. N. Engl. J. Med. 334

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. Sairam , R. K. , Rao , K. V. , Srivastava , G. C. ( 2002 ) Differential response of wheat genotypes to long term salinity stress in relation to oxidative stress, antioxidant activity and osmolyte concentration . Plant Sci. 163 , 1037 – 1046

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The effect of three rates (5, 10 and 20% w/v) and different spraying schedules (2, 4 and 6 weekly applications) of aqueous neem, Azadirachta indica (A. Juss) seed extracts was tested on legume pod borers, Maruca vitrata Fab. and the coreid bugs, Clavigralla tomentosicollis Stal on cowpea under field conditions in two cropping seasons in the northern Guinea savanna of Nigeria. Legume pod borers (LPB) were better controlled at 20% and 6 applications of neem seed extract compared with other plant material treatments and the untreated check but its values were not significantly different to the synthetic insecticide treatment. Although, at similar rate of neem seed extract, its control of the coreid bugs was inferior to the synthetic insecticide treatment but was superior to 10% and 5% rates of neem seed extracts at all application schedules. Cowpea pods were adequately protected from damage by the pests and grain yields were significantly higher at 10 and 20% extract rates with four or six application schedules compared with 5% extract at all schedules tested and the untreated control but its values were inferior to the synthetic insecticide treatment.

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43 56 Markert, B. and Weckert, V. (1994): Higher lead concentration in the environment of Forment West Germany after the fall of the ‘Berlin Wall'. — Sci. Tot. Environ. 158

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