International Journal of Agricultural Research1816-48972152-2553Academic Journals Inc.10.3923/ijar.2007.397.401Conyza albida)]]>TravlosI. S.EconomouG. KanatasP. J.TzakouO. 4200724The allelopathic effects of three plant tissues of Conyza albida (stems, leaves and inflorescences) on oat growth were further investigated using in vivo tests. Oat growth (fresh and dry weights of above and underground parts) was significantly inhibited from phytotoxic activity of upper leaves and inflorescence tissues of C. albida in pot experiments. The inhibition was significantly higher than in the case of stems. The inhibiting action of crude extracts and volatile compounds from young plants (rosette) were examined using two bioassay methods: (a) seed germination and radicle growth of oat and (b) fresh weight of duckweed plants. Both bioassayed species exhibited great phytotoxic response from the young plants, collected in winter, confirming the results of previous studies.]]>Bell, D.T.,197467312317Economou, G., O. Tzakou, A. Gani, A. Yannitsaros and D. Bilalis,2002Conyza albida on Avena sativa and Spirodela polyrhiza.]]>188248253Einhellig, F.A.,19861986pp: 171-188pp: 171-188Finney, D.J.,1962Finney, D.J.,19783rd Edn.,Heisey, R.M.,1990Ailanthus altissima).]]>77662670Hellenic Pharmacopoeia,19891989Leather, G.R. and F.A. Einhellig,19851985Olofsdotter, M., D. Navarez and K. Moody,1995Oryza sativa L.) germplasm.]]>127543560Peterson, G.S., M.A. Kandil and M.D. Abdallah,198925337342Putnam, A.R. and W.B. Duke,197816431451Putnam, A.R., J. DeFrank and J. Barnes,19839101111Putnam, A.R.,19882510518Rice, E.L.,19842nd Edn.,Pages: 422Pages: 422SPSS Inc.,1997Version 8,Thebaud, C. and R.J. Abbott,1995Conyza species (Asteraceae) in Europe: Quantitative trait and isozyme analysis.]]>82360368